NeuzTec Quadraphonics Manual
Ver.2026.001
Quadraphonic sound has a long history in electronic, experimental, electroacoustic, and spatial music. In quad, space becomes part of the composition. A four-point sound field allows sound to move, rotate, drift, collide, diffuse, and expand in ways that stereo cannot. Instead of thinking only in left and right, quad invites artists to shape depth, direction, motion, pressure, and room energy.
At NeuzTec, quadraphonic sound is not treated as a novelty effect. It is a flexible performance system. It can support minimal sound work, dense electronic music, modular synthesis, rhythmic material, drones, multichannel composition, improvised performance, and spatial experimentation. The room becomes part of the instrument.
This manual explains how the NeuzTec quad system is configured, how the speakers are oriented, how bass routing can behave, and how artists can select output modes for their performances.
The goal is clarity. With a shared technical foundation, artists and front-of-house can move directly into shaping the spatial character of each set.
NeuzTec Quad Sound System designed for exploration.
1. Quad Orientation and Physical Alignment
Standing at room centre facing the stage:
FL = Front Left
FR = Front Right
BL = Back Left
BR = Back Right
The four main speakers are aligned as a quadraphonic field and angled inward toward the centre of Wood Hall. The speaker axes cross near the centre of the room, producing a stable spatial image and a strong reference point for front/back, side-to-side, and diagonal movement.
The system should be understood as a four-corner field rather than an expanded stereo system. Each speaker position can function as an anchor point, a movement point, or part of a larger spatial image.
2. Artist Configuration Options
Artists may approach the quad system in several ways. The system can support simple mono reinforcement, stereo expansion, dual-stereo layering, full quad playback, multi-quad routing, or independently routed multichannel material.
These options can be selected in advance or shaped collaboratively during setup and soundcheck.
2.1 Output Formats
Mono
Stereo
Dual Stereo
Quad
Multi-Quad
Multichannel
2.2 Stereo Placement Modes
Standard Front Stereo
Back Stereo
Full Quad Stereo Spread
Rotated Stereo
Diagonal Stereo
Opposed Stereo Pair
Adaptive Stereo
2.3 Dual Stereo Layouts
Front + Back
Back + Front
Front + Rotated
Rotated + Front
Rotated + Back
Back + Rotated
Quad Spread + Front
Quad Spread + Back
Quad Spread + Side
Quad Spread + Side Mirror
Quad Spread + Side Inverted
Diagonal + Front
Diagonal + Back
Diagonal + Side
Diagonal + Side Mirror
Diagonal + Side Inverted
Centre Mono + Quad Bed
Mono Anchor + Moving Stereo
Adaptive Dual Stereo
2.4 Variant Logic
Normal = left/right orientation is preserved.
Mirror = left/right orientation is reversed within a layer.
Inverted = the second layer is opposed across both the front and rear field, creating stronger spatial contradiction than a simple mirror.
Primary Layer = the layer treated as the main image.
Anchor Layer = the layer used to stabilize the spatial field.
Adaptive = FOH may move, reinterpret, or reshape the mapping live.
2.5 Bass Modes
Summed Bass
Spatial Bass
Hybrid Bass
Dedicated Low Frequency Stems
2.6 Additional Options
Motion paths
Spatial scenes
FOH-controlled spatial movement
Timecode-coordinated cues, with advance notice
Artist-supplied stems or multichannel outputs
3. Subwoofer Architecture
Each quad channel can include its own independent subwoofer send. This allows low-frequency material to behave either as a central shared bass field or as part of the spatial image.
3.1 Summed Bass
All low-frequency signals are combined into a single mono bass feed.
This produces strong central bass energy and is useful when the low end should remain stable, powerful, and consistent across the room.
Best for:
Kick-heavy material
Bass lines requiring strong central focus
Dance-oriented material
Sets where low-frequency clarity is more important than spatial bass movement
3.2 Spatial Bass
Each subwoofer follows its corresponding quad channel.
This allows low-frequency material to move with the spatial image. Bass can shift front to back, left to right, or diagonally through the room.
Best for:
Drones
Low-frequency movement
Spatial synthesis
Bass textures
Sound design where directionality matters
This is the default NeuzTec quad bass mode.
3.3 Hybrid Bass
Hybrid bass combines summed bass and spatial bass.
This mode allows the core low-frequency energy to remain stable while selected elements retain spatial movement. It can provide both power and directional character.
Best for:
Performances with both rhythmic and atmospheric low end
Sets with kick/bass elements and moving low-frequency textures
Material requiring both stability and spatial depth
3.4 Dedicated Low Frequency Stems
Artists may provide isolated low-frequency stems for independent routing.
Examples include:
Kick
Sub bass
Drones
Tones
LFO-driven layers
Low-frequency noise
Bass pulses
Dedicated stems allow FOH to decide whether each low-frequency element should be summed, spatialized, or treated separately.
4. Stereo Spatial Mapping
Stereo material can be placed into the quad system in several ways. These mappings allow a conventional stereo output to become more spatial without requiring the artist to create a full quad mix.
All mappings are listed in the order:
FL, FR, BL, BR
4.1 Standard Front Stereo
FL = L
FR = R
BL = —
BR = —
This is a focused front stereo image. It behaves like a conventional PA configuration and provides strong clarity, articulation, and stage focus.
Best for:
Vocals
Rhythmic material
Stereo backing tracks
Sets requiring a clear front image
4.2 Back Stereo
FL = —
FR = —
BL = L
BR = R
This places the stereo image behind the audience. It can be used as an environmental bed, rear texture, or spatial counterweight to front-focused material.
Best for:
Rear ambience
Environmental sound
Hidden or distant sources
Call-and-response with front material
4.3 Full Quad Stereo Spread
FL = L
FR = R
BL = L
BR = R
This creates a wide wraparound stereo field. The left image is present on both left-side speakers, while the right image is present on both right-side speakers.
Best for:
Immersive stereo expansion
Pads
Drones
Dense electronic material
Stereo mixes that benefit from room-filling width
4.4 Rotated Stereo
FL = L
FR = R
BL = R
BR = L
This produces sidewall drift and lateral motion. The rear image is reversed relative to the front, creating a rotated stereo field that can feel like movement around the room.
Best for:
Spatial drift
Lateral motion
Textural movement
Material with wide stereo modulation
4.5 Diagonal Stereo
FL = L
FR = R
BL = R
BR = L
This mapping can be used to emphasize diagonal movement across the room. The perceived motion may pull from front-left to back-right, or from front-right to back-left, depending on the source material and FOH balance.
Best for:
Diagonal tension
Corner-to-corner motion
Moving drones
Spatial gestures
Note: Diagonal and rotated mappings may use similar channel assignments but are mixed and interpreted differently by FOH depending on the intended spatial behaviour.
4.6 Opposed Stereo Pair
Option A:
FL = L
FR = —
BL = —
BR = R
Option B:
FL = —
FR = R
BL = L
BR = —
This maps a stereo pair to opposite corners only. It creates a true diagonal stereo image rather than a four-speaker spread.
Best for:
Point-to-point motion
Diagonal call-and-response
Percussive spatial gestures
Sparse material
4.7 Four-Corner Mono Placement
A mono source may be assigned to one speaker only.
Option A: FL only
Option B: FR only
Option C: BL only
Option D: BR only
This creates a point-source location within the quad field.
Best for:
Sound objects
Spoken fragments
Percussion hits
Call-and-response
Spatial punctuation
4.8 Adaptive Stereo
FL = variable
FR = variable
BL = variable
BR = variable
FOH adjusts the stereo placement in real time. This allows the stereo image to shift, widen, narrow, rotate, or move through the quad field during the performance.
Best for:
Improvised performance
Dynamic electronic sets
Artists who want FOH to spatialize live
Material that changes significantly over time
5. Dual Stereo and Spatial Configuration Catalogue
Dual stereo uses two independent stereo layers:
Pair A = Stereo Layer 1
Pair B = Stereo Layer 2
Each pair can be placed differently in the quad field. This is useful when an artist has two stereo outputs, such as:
Main mix + effects
Drums + synths
Voice + electronics
Backing track + live processing
Front image + rear texture
Rhythmic layer + drone layer
Mappings are shown in the order:
FL, FR, BL, BR
5.1 Front + Back
Pair A
FL = L
FR = R
BL = —
BR = —
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration creates a clear front stereo image with an independent rear stereo bed. The advantage is separation: foreground material can remain intelligible while atmospheric or secondary material surrounds the listener from behind.
Best for: narrative electronic music, singer-songwriter with electronics, ambient sets, spoken word with sound design, electroacoustic performance.
Best aligned with: vocals, lead synths, guitar, melodic instruments, field recordings, rear ambience, drones, reverb returns.
5.2 Front Mirror + Back
Pair A
FL = R
FR = L
BL = —
BR = —
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration reverses the front stereo image while keeping the rear image normal. The advantage is subtle spatial disorientation without losing the stability of the rear field.
Best for: experimental electronics, abstract sound design, musique concrète, modular synthesis, noise textures.
Best aligned with: processed stereo sources, reversed delays, granular textures, unstable synth layers, spatial effects.
5.3 Front + Back Mirror
Pair A
FL = L
FR = R
BL = —
BR = —
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration keeps the front image stable while reversing the rear image. The advantage is a strong forward anchor with a rear field that feels more active, reflective, or uncanny.
Best for: ambient, dub-influenced electronics, post-rock electronics, cinematic sound design, drone performance.
Best aligned with: front lead material, rear delays, reverbs, pads, environmental sounds, echoed percussion.
5.4 Front Mirror + Back Mirror
Pair A
FL = R
FR = L
BL = —
BR = —
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration mirrors both front and rear stereo images. The advantage is a less conventional spatial orientation where familiar stereo relationships are shifted across the room.
Best for: disorienting experimental sets, abstract electronic music, sound art, spatial improvisation.
Best aligned with: non-rhythmic textures, manipulated recordings, spectral processing, unstable stereo material.
5.5 Back + Front
Pair A
FL = —
FR = —
BL = L
BR = R
Pair B
FL = L
FR = R
BL = —
BR = —
This is the reverse hierarchy of Front + Back. The rear layer is treated as the primary image, with the front pair used as an anchor or response layer. The advantage is an immersive rear-first soundstage that pulls the audience into the room rather than projecting everything from the stage.
Best for: ambient, installation-style performance, immersive drone, environmental composition, deep listening.
Best aligned with: rear drones, field recordings, long-form textures, front accents, voice fragments, soft melodic responses.
5.6 Back Mirror + Front
Pair A
FL = —
FR = —
BL = R
BR = L
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration places a mirrored stereo field behind the audience with a stable front anchor. The advantage is rear movement and depth while preserving a clear point of reference at the stage.
Best for: ambient techno, soundscape performance, electroacoustic work, experimental folk with electronics.
Best aligned with: rear pads, rear delays, front vocals, acoustic instruments, lead synths.
5.7 Back + Front Mirror
Pair A
FL = —
FR = —
BL = L
BR = R
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration creates a stable rear image with a mirrored front anchor. The advantage is a rear-dominant field with a front image that feels intentionally shifted or destabilized.
Best for: experimental pop, art-rock electronics, modular performance, spatial DJ-style sets.
Best aligned with: rear rhythmic beds, front processed leads, stereo effects, distorted instruments.
5.8 Back Mirror + Front Mirror
Pair A
FL = —
FR = —
BL = R
BR = L
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration mirrors both the rear primary layer and front anchor. The advantage is a fully altered stereo orientation while still maintaining front/back separation.
Best for: abstract sound art, noise, glitch, electroacoustic performance, spatial improvisation.
Best aligned with: fragmented samples, reversed textures, synthetic percussion, manipulated stereo recordings.
5.9 Front + Rotated
Pair A
FL = L
FR = R
BL = —
BR = —
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration creates a stable front stereo image with a second stereo layer spread into a rotated quad field. The advantage is clarity plus movement: the main material stays focused while the second layer appears to drift along the room edges.
Best for: electronic music, modular synthesis, ambient, techno-adjacent sets, cinematic performance.
Best aligned with: front drums, bass, vocals, lead synths, rotating pads, modulation effects, arpeggios.
5.10 Front Mirror + Rotated
Pair A
FL = R
FR = L
BL = —
BR = —
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration combines a mirrored front image with a rotated spatial bed. The advantage is a more abstract front image supported by a surrounding motion layer.
Best for: experimental electronics, noise, spatial improvisation, modular systems.
Best aligned with: mirrored leads, processed stereo synths, rotating drones, stereo delays.
5.11 Front + Rotated Mirror
Pair A
FL = L
FR = R
BL = —
BR = —
Pair B
FL = R
FR = L
BL = L
BR = R
This configuration keeps the front image stable while mirroring the rotated layer. The advantage is a clear stage image with a more unstable surrounding field.
Best for: ambient, electroacoustic, experimental techno, sound design performance.
Best aligned with: front rhythmic material, front vocals, mirrored pads, moving reverbs, modulation effects.
5.12 Rotated + Front
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration treats the rotated layer as the primary field, with the front pair used as a stable anchor. The advantage is a more immersive and mobile main image while retaining front clarity.
Best for: modular synthesis, live electronic improvisation, ambient techno, experimental dance music.
Best aligned with: rotating synth beds, spatial percussion, front kick/snare, front melodic anchors.
5.13 Rotated + Front Mirror
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration combines a rotating primary field with a mirrored front anchor. The advantage is tension between a mobile room image and a destabilized stage image.
Best for: noise, glitch, abstract electronics, spatially aggressive performance.
Best aligned with: rotating drones, noisy synths, distorted leads, fractured stereo loops.
5.14 Rotated Mirror + Front
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration mirrors the primary rotated field while keeping the front anchor normal. The advantage is strong spatial motion with a stable musical reference point.
Best for: ambient, experimental electronic, modular, electroacoustic.
Best aligned with: mirrored rotating beds, front voice, front melody, front rhythmic elements.
5.15 Rotated Mirror + Front Mirror
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration mirrors both the rotated primary field and the front anchor. The advantage is a fully shifted spatial image that can feel synthetic, abstract, or intentionally off-axis.
Best for: sound art, noise, abstract modular performance, experimental audiovisual work.
Best aligned with: synthetic textures, processed loops, reversed stereo material, non-linear performance structures.
5.16 Rotated + Back
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration combines a rotated full-field layer with an independent rear stereo bed. The advantage is a strong sense of movement around the room with additional depth behind the audience.
Best for: ambient, drone, spatial techno, cinematic electronics, experimental percussion.
Best aligned with: rotating synth layers, rear drones, rear impacts, field recordings, low-frequency textures.
5.17 Rotated + Back Mirror
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration adds a mirrored rear bed to a rotated main field. The advantage is increased rear tension and a stronger sense of spatial unease.
Best for: darker ambient, noise, industrial electronics, experimental bass music.
Best aligned with: rear noise beds, distorted delays, rotating sub-textures, unsettling drones.
5.18 Rotated Mirror + Back
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration mirrors the rotated main field while keeping the rear stereo bed stable. The advantage is a moving field with a grounded rear reference.
Best for: immersive ambient, live electronics, electroacoustic, modular drones.
Best aligned with: moving synth textures, rear pads, rear harmonics, sustained tones.
5.19 Rotated Mirror + Back Mirror
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration mirrors both the rotated main field and the rear bed. The advantage is a fully altered rear-weighted spatial environment.
Best for: experimental sound art, noise, abstract electronics, installation-style performance.
Best aligned with: rear-heavy drones, mirrored noise fields, processed recordings, spatial feedback textures.
5.20 Quad Spread + Front
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration creates a wide immersive stereo bed with a focused front image. The advantage is fullness without sacrificing clarity.
Best for: electronic music, ambient pop, experimental rock, cinematic sets, singer-songwriter with electronics.
Best aligned with: quad pads, stereo backing tracks, front vocals, front guitar, front lead synths.
5.21 Quad Spread + Front Mirror
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration creates a wide quad bed with a mirrored front image. The advantage is a full surrounding field with a front element that feels spatially shifted.
Best for: psychedelic electronic music, experimental pop, abstract vocal work, art-rock.
Best aligned with: surrounding pads, mirrored front vocals, processed guitar, stereo leads.
5.22 Quad Spread Mirror + Front
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration mirrors the immersive bed while keeping the front anchor stable. The advantage is a familiar front image against an unfamiliar surrounding field.
Best for: ambient, electroacoustic, experimental folk, cinematic sound design.
Best aligned with: stable vocals, stable melody, mirrored environmental beds, wide textures.
5.23 Quad Spread Mirror + Front Mirror
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration mirrors both the surrounding bed and the front image. The advantage is a fully reoriented stereo field that still maintains a front-focused element.
Best for: abstract electronic music, spatial sound art, noise, experimental audiovisual sets.
Best aligned with: mirrored full mixes, processed vocals, synthetic textures, reversed stereo sources.
5.24 Quad Spread + Back
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration creates a wide immersive bed with an independent rear focus. The advantage is room-filling width with added depth behind the listener.
Best for: ambient, drone, field recording-based work, cinematic electronics, deep listening.
Best aligned with: quad pads, rear textures, rear voices, rear percussion, environmental recordings.
5.25 Quad Spread + Back Mirror
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration keeps the quad bed stable while mirroring the rear focus. The advantage is rear movement and contrast within an otherwise coherent immersive field.
Best for: ambient, dub electronics, experimental techno, soundscape performance.
Best aligned with: rear delays, rear reverbs, rear rhythmic echoes, wide pads.
5.26 Quad Spread Mirror + Back
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration mirrors the quad bed while keeping the rear image stable. The advantage is a rear anchor inside an altered immersive field.
Best for: drone, electroacoustic, experimental electronics, spatial composition.
Best aligned with: rear drones, rear harmonic beds, mirrored stereo textures, field recordings.
5.27 Quad Spread Mirror + Back Mirror
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration mirrors both the quad bed and the rear image. The advantage is a rear-oriented field with a deliberately altered sense of left and right.
Best for: noise, abstract sound design, installation-style performance, experimental ambient.
Best aligned with: rear-heavy textures, reversed stereo beds, spatial noise, processed recordings.
5.28 Quad Spread + Side
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration places a wide stereo bed across the room with a second layer that creates lateral motion. The advantage is immersion plus side-to-side movement.
Best for: ambient techno, modular synthesis, electronic music, psychedelic performance, dance-adjacent experimental sets.
Best aligned with: pads, arpeggios, stereo modulation, side delays, rhythmic textures.
5.29 Quad Spread + Side Mirror
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = R
FR = L
BL = L
BR = R
This configuration adds a mirrored side-motion layer to a stable quad spread. The advantage is a more complex lateral field while maintaining the wide stereo foundation.
Best for: experimental electronics, glitch, modular synthesis, electroacoustic.
Best aligned with: stereo effects, modulated synths, granular textures, moving percussion.
5.30 Quad Spread + Side Inverted
Pair A
FL = L
FR = R
BL = L
BR = R
Pair B
FL = R
FR = L
BL = R
BR = L
This configuration creates a wide immersive stereo bed with an inverted lateral layer. The advantage is strong spatial opposition, making the field feel more unstable, rotational, or disorienting.
Best for: noise, industrial electronics, abstract modular, experimental bass, intense spatial transitions.
Best aligned with: aggressive synth layers, distorted effects, rising tension, noise sweeps, transition sections.
5.31 Quad Spread Mirror + Side
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration uses a mirrored quad bed with a normal side-motion layer. The advantage is contrast between an altered surrounding field and a more familiar moving layer.
Best for: experimental ambient, electroacoustic, modular performance, sound art.
Best aligned with: mirrored drones, normal stereo movement, evolving textures, sidewall effects.
5.32 Quad Spread Mirror + Side Mirror
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = R
FR = L
BL = L
BR = R
This configuration combines a mirrored quad bed with a mirrored side-motion layer. The advantage is a fully shifted lateral environment.
Best for: abstract electronic music, spatial noise, experimental audiovisual work.
Best aligned with: mirrored modulation, processed stereo loops, synthetic sound masses.
5.33 Quad Spread Mirror + Side Inverted
Pair A
FL = R
FR = L
BL = R
BR = L
Pair B
FL = L
FR = R
BL = L
BR = R
This configuration sets a mirrored quad bed against an inverted side layer. The advantage is maximum spatial opposition within the quad spread family.
Best for: disorienting sound art, noise, intense modular performance, transition-heavy electronic sets.
Best aligned with: harsh textures, unstable drones, rising synth layers, spatial rupture moments.
5.34 Diagonal + Front
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration creates a diagonal spatial pull with a stable front anchor. The advantage is movement across the room while preserving stage clarity.
Best for: electronic music, experimental pop, ambient, post-rock electronics, cinematic performance.
Best aligned with: diagonal pads, moving synths, front vocals, front melody, front percussion.
5.35 Diagonal + Front Mirror
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration keeps the diagonal field active while mirroring the front anchor. The advantage is a stronger sense of spatial tension at the stage.
Best for: experimental electronics, psychedelic music, abstract vocal work, modular sets.
Best aligned with: diagonal drones, mirrored lead synths, processed vocals, stereo delays.
5.36 Diagonal Mirror + Front
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration mirrors the diagonal field while keeping the front image stable. The advantage is diagonal motion with a clear musical reference point.
Best for: ambient, electroacoustic, cinematic sound design, experimental folk with electronics.
Best aligned with: front vocals, front acoustic instruments, mirrored diagonal textures, field recordings.
5.37 Diagonal Mirror + Front Mirror
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = R
FR = L
BL = —
BR = —
This configuration mirrors both the diagonal field and the front anchor. The advantage is a fully shifted diagonal image with a front presence.
Best for: abstract electronic music, sound art, noise, experimental performance.
Best aligned with: processed leads, stereo synths, mirrored drones, manipulated recordings.
5.38 Diagonal + Back
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration creates diagonal movement with a rear stereo anchor. The advantage is motion across the room with added depth and rear focus.
Best for: ambient, drone, electroacoustic, cinematic electronics, spatial percussion.
Best aligned with: diagonal beds, rear drones, rear percussion, environmental textures.
5.39 Diagonal + Back Mirror
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration combines a diagonal field with a mirrored rear anchor. The advantage is rear spatial tension combined with corner-to-corner motion.
Best for: darker ambient, noise, industrial textures, experimental bass.
Best aligned with: rear noise, rear delays, diagonal synths, distorted spatial effects.
5.40 Diagonal Mirror + Back
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration mirrors the diagonal field while keeping the rear anchor stable. The advantage is altered diagonal movement with a grounded rear image.
Best for: immersive ambient, electroacoustic, field recording work, live electronics.
Best aligned with: rear soundscapes, mirrored diagonal pads, slow movement, drones.
5.41 Diagonal Mirror + Back Mirror
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = —
FR = —
BL = R
BR = L
This configuration mirrors both the diagonal field and rear anchor. The advantage is a fully shifted rear-weighted diagonal environment.
Best for: abstract sound art, noise, experimental ambient, installation-style sets.
Best aligned with: rear-heavy drones, mirrored field recordings, manipulated stereo textures.
5.42 Diagonal + Side
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration reinforces the diagonal/side movement by using the same spatial structure for both layers. The advantage is a strong, coherent motion field.
Best for: modular synthesis, ambient techno, rhythmic electronics, evolving drone.
Best aligned with: arpeggios, modulated synths, moving percussion, stereo pads.
5.43 Diagonal + Side Mirror
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = R
FR = L
BL = L
BR = R
This configuration sets a diagonal field against a mirrored side-motion layer. The advantage is increased motion complexity and spatial counterpoint.
Best for: glitch, experimental electronics, electroacoustic, noise.
Best aligned with: granular textures, stereo modulation, delay networks, contrasting synth layers.
5.44 Diagonal + Side Inverted
Pair A
FL = L
FR = R
BL = R
BR = L
Pair B
FL = R
FR = L
BL = R
BR = L
This configuration creates a diagonal field with an inverted side layer. The advantage is strong opposition between the main diagonal image and the second stereo pair.
Best for: aggressive experimental music, industrial electronics, noise, intense transitions.
Best aligned with: distortion, feedback, rising tension, harsh modulation, dramatic section changes.
5.45 Diagonal Mirror + Side
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = L
FR = R
BL = R
BR = L
This configuration combines a mirrored diagonal field with normal side motion. The advantage is a shifted primary image with a more readable moving layer.
Best for: experimental ambient, modular synthesis, electroacoustic composition.
Best aligned with: mirrored pads, moving arpeggios, side delays, evolving drones.
5.46 Diagonal Mirror + Side Mirror
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = R
FR = L
BL = L
BR = R
This configuration reinforces the mirrored diagonal structure across both stereo layers. The advantage is a coherent but reversed spatial movement field.
Best for: sound art, abstract electronics, spatially focused ambient.
Best aligned with: mirrored drones, stereo synth fields, sustained textures, evolving modulation.
5.47 Diagonal Mirror + Side Inverted
Pair A
FL = R
FR = L
BL = L
BR = R
Pair B
FL = L
FR = R
BL = L
BR = R
This configuration sets a mirrored diagonal field against an inverted side layer. The advantage is a highly active spatial contradiction, useful when the room itself should feel unstable.
Best for: noise, experimental modular, industrial sound, abstract performance.
Best aligned with: unstable drones, harsh effects, synthetic pressure, spatial disruption.
5.48 Centre Mono + Quad Bed
Mono Anchor
FL = M
FR = M
BL = —
BR = —
Quad Bed
FL = L
FR = R
BL = L
BR = R
This configuration places a mono source at the front centre using FL and FR equally, while a stereo or quad-spread layer surrounds it. The advantage is clarity: the main source remains focused while the room carries the surrounding material.
Best for: vocals with electronics, spoken word, experimental folk, singer-songwriter, cinematic performance.
Best aligned with: voice, narration, lead instrument, kick, bass anchor, melody, surrounding pads.
5.49 Rear Mono + Quad Bed
Mono Anchor
FL = —
FR = —
BL = M
BR = M
Quad Bed
FL = L
FR = R
BL = L
BR = R
This configuration places a mono source behind the audience while the quad bed fills the room. The advantage is a rear focal point that can feel distant, hidden, environmental, or theatrical.
Best for: soundscape work, theatre-influenced performance, ambient, installation-style sets.
Best aligned with: rear voice, distant instruments, environmental sounds, ghost tones, rear drones.
5.50 Mono Anchor + Moving Stereo
Mono Anchor
FL = M
FR = M
BL = optional
BR = optional
Moving Stereo
FL = variable
FR = variable
BL = variable
BR = variable
This configuration keeps a mono source fixed while stereo material moves through the quad field. The advantage is stability plus motion.
Best for: vocal electronics, live modular, techno-adjacent performance, experimental pop, spoken word with spatial sound.
Best aligned with: fixed voice, kick, bass, lead instrument, moving synths, moving delays, rotating textures.
5.51 Opposed Stereo + Front Anchor
Pair A
FL = L
FR = —
BL = —
BR = R
Pair B
FL = L
FR = R
BL = —
BR = —
This configuration creates a true diagonal stereo pair with a front stereo anchor. The advantage is point-to-point diagonal movement while retaining stage clarity.
Best for: sparse electronic music, experimental percussion, modular synthesis, electroacoustic performance.
Best aligned with: diagonal hits, panned percussion, front leads, front rhythm, call-and-response material.
5.52 Opposed Stereo + Back Anchor
Pair A
FL = L
FR = —
BL = —
BR = R
Pair B
FL = —
FR = —
BL = L
BR = R
This configuration creates a true diagonal stereo pair with a rear stereo anchor. The advantage is a more immersive and rear-weighted diagonal image.
Best for: ambient, drone, soundscape, experimental percussion, spatial composition.
Best aligned with: diagonal sound objects, rear beds, rear field recordings, sparse rhythmic elements.
5.53 Ring / Rotation Mode
This is not a static routing. It is a motion mode.
A stereo or mono element can be moved around the quad field in a circular pattern:
FL → FR → BR → BL → FL
or reversed:
FL → BL → BR → FR → FL
The advantage is active spatial performance. Sound can rotate around the audience, build tension, mark transitions, or create a clear sense of motion.
Best for: modular synthesis, noise, experimental techno, ambient builds, audiovisual performance, transition sections.
Best aligned with: drones, risers, noise sweeps, arpeggios, percussion loops, delay throws, feedback gestures.
5.54 Adaptive Dual Stereo
Pair A
FL = variable
FR = variable
BL = variable
BR = variable
Pair B
FL = variable
FR = variable
BL = variable
BR = variable
Both stereo layers can shift dynamically. This allows continuous evolution, real-time spatial shaping, and collaborative performance interaction between the artist and FOH.
The advantage is flexibility. Instead of locking the performance into a single routing model, the spatial field can respond to musical energy, density, dynamics, and audience experience in real time.
Best for: improvisation, modular synthesis, live electronics, electroacoustic performance, experimental DJ sets, hybrid acoustic/electronic sets.
Best aligned with: evolving textures, live stems, improvisational layers, dynamic effects, responsive spatial movement, full-performance spatial interpretation.
6. Full Quad Routing
Full quad routing uses four discrete input channels.
1 = FL
2 = FR
3 = BL
4 = BR
This allows artists to send a prepared quadraphonic mix or perform with four independent outputs.
The NeuzTec system supports up to four independent quad sets, for a total of 16 channels, depending on advance technical requirements and available input capacity.
Best for:
Prepared quad compositions
Four-channel modular systems
Spatial playback
Live quad panning
Multichannel DAW output
Artists who already work in quad
7. Multi-Quad Routing
Multi-quad routing allows multiple four-channel groups to operate at the same time.
Example:
Quad Set 1
1 = FL
2 = FR
3 = BL
4 = BR
Quad Set 2
5 = FL
6 = FR
7 = BL
8 = BR
Quad Set 3
9 = FL
10 = FR
11 = BL
12 = BR
Quad Set 4
13 = FL
14 = FR
15 = BL
16 = BR
This format supports more complex compositions where separate instrument groups, stems, or sound objects occupy independent quad fields.
Best for:
Advanced multichannel performance
DAW-based spatial composition
Stem-based quad mixing
Layered spatial systems
Large modular or hybrid electronic setups
8. Multichannel Routing
Multichannel routing supports independent sources that do not need to arrive as stereo pairs or full quad groups.
Examples include:
Percussion stems
Drones
Textures
Melodic lines
Harmonic beds
Field recordings
Noise layers
Spatial objects
Automated cues
Live inputs
Effects returns
Each channel can be routed independently in the quad field. This gives FOH and the artist maximum flexibility in placing, moving, or balancing material.
Best for:
Artists with stems
Live electronics
Hybrid acoustic/electronic sets
Complex spatial arrangements
Performances requiring FOH spatial interpretation
9. Performer and FOH Collaboration
Quad performance works best when the artist and FOH engineer share a clear spatial intention.
Artists provide the source material, output format, and preferred spatial behaviour. FOH shapes balance, routing, movement, bass behaviour, and room response in real time.
Useful artist notes may include:
Which sounds should remain stable
Which sounds may move
Which sounds should feel close or distant
Which sounds should be front-focused
Which sounds should surround the audience
Which elements should use spatial bass
Whether FOH may actively perform the spatial mix
Whether cues or scenes are fixed or improvised
The best quad performances often emerge from collaboration. The artist defines the musical intention. FOH helps translate that intention into the physical room.
10. The Joy and History of Quad
Quadraphonic sound has played a significant role in electronic and experimental music since the 1970s. Early spatial audio practitioners treated speaker placement as a musical parameter rather than a playback format. Artists such as Suzanne Ciani demonstrated that quad is not simply four-channel sound. It is a spatial instrument capable of gesture, movement, environmental shaping, and immersive composition.
Quad systems extend control beyond amplitude and frequency. Direction, movement, distance, contrast, and spatial pressure become compositional elements. Signals can rotate, translate, collide, diffuse, anchor, or disappear into the room. These behaviours influence listener orientation, immersion, perceived dynamics, and emotional intensity.
Wood Hall’s inward-facing quad array creates a defined listening field with strong spatial consistency near the centre of the room. Movement across the field—front to back, side to side, or corner to corner—can shift audience focus, widen or compress the image, and change the perceived energy of the performance.
The NeuzTec quad system is designed to support intentional choices, experimental workflows, and the expressive potential of spatial audio. Whether used simply or extensively, the system offers artists a spatial vocabulary for shaping the room as part of the work.