Audison APBX 10 S4S 10" 800W Prima Sealed Subwoofer Enclosure
Audison APBX 10 S4S 10" 800W Prima Sealed Subwoofer Enclosure
Engineered as a precision plug-and-play bass solution for Audison Prima systems, the APBX 10 S4S delivers a complete ultra-low-profile sealed subwoofer enclosure optimised for the APS 10 S4S driver and purpose-matched to AF bit amplifier integration.
Product Overview
The APBX 10 S4S is Audison's sealed subwoofer enclosure from the Prima range, designed to house the APS 10 S4S single 4-ohm voice coil subwoofer as a matched driver-and-enclosure system. The ultra-low profile enclosure measures just 142mm (5.6 inches) in depth, making it suitable for boot installations where vertical clearance is limited. The sealed design is precisely tuned to fully exploit the acoustic characteristics of the APS 10 S4S driver, delivering controlled, accurate bass output with the transient response characteristic of a well-matched sealed system.
The enclosure is specifically developed for use with Audison AF bit amplifiers, taking advantage of the bass boost feature and integrated parametric equaliser within the built-in DSP to fine-tune the system's low-frequency response for any vehicle acoustic environment. The 2S2 (2 Sides/2 Sounds) design supports both Down-Firing and Up-Firing installation orientations, with included levelling feet for Down-Firing use. The SSP (Sub Smart Plug) terminal block provides both Plug-and-Play quick-release connectivity and traditional push contacts for conventional wiring, simplifying installation and impedance configuration. Rounded corners ease positioning in the boot and act as structural reinforcement to reduce enclosure resonance. A sturdy metal grille is included for full driver protection. Handling 400 watts continuous and 800 watts peak at 4 ohms, the APS 10 S4S driver features a cotton-fibre pressed paper cone developed using FEM simulation, a massive motor assembly optimised with Finite Element Modelling, and a water-repellent treated cone surface rated for 11mm one-way linear excursion.
Features & Benefits
Ultra-Low Profile Sealed Enclosure Tuned for APS 10 S4S: At 142mm (5.6") depth, the APBX 10 S4S is designed for installations where a standard-depth subwoofer enclosure cannot fit. The sealed design is not a generic box but a precisely tuned acoustic environment matched to the APS 10 S4S driver's Thiele-Small parameters for optimal damping, frequency response, and power handling.
2S2 (2 Sides/2 Sounds) Dual-Firing Orientation: The enclosure supports Down-Firing installation using the included levelling feet for increased low-frequency extension and deeper bass, or Up-Firing installation for more punch and transient definition. Both options are available without additional hardware.
SSP (Sub Smart Plug) Terminal System: The SSP terminal block provides a Plug-and-Play quick-release connector alongside traditional push contacts, allowing fast, secure wiring during installation or removal and supporting flexible impedance configuration. The dual-method system leaves no room for connection errors.
FEM-Optimised Driver Motor Assembly: The APS 10 S4S driver's motor assembly is optimised using Finite Element Modelling (FEM) to deliver perfect control under high-excursion conditions, maintaining linear performance across the driver's full 11mm one-way excursion range.
Water-Repellent Cotton-Fibre Pressed Paper Cone: The 10" cone uses a cotton-fibre pressed paper construction with a water-repellent treatment, developed with FEM simulation and optimised using the Klippel Scan Vibrometer for accurate, low-distortion pistonic motion across the operating frequency range.
Cone-Dustcap-Basket Geometry for Long Linear Excursion: The specially designed geometry of the cone, dustcap, and basket assembly guarantees 11mm of one-way linear excursion, providing high output capability from a shallow-mount driver without mechanical stress on the suspension components.
Optimised for AF Bit Amplifiers with DSP Integration: The APBX 10 S4S is specifically developed for use with Audison AF bit amplifiers, designed to take advantage of the bass boost feature and integrated parametric equaliser within the built-in DSP for system-level tuning and compensation.
Rounded Corners for Placement and Structural Reinforcement: The enclosure's rounded corners ease positioning in the boot alongside other cargo and act as structural reinforcement, reducing panel resonance at the corners under high-output conditions.
Included Metal Grille for Driver Protection: A sturdy metal grille is included in the box, providing full mechanical protection for the subwoofer driver during and after installation.
Levelling Feet with Velcro Inserts: Included levelling feet with velcro inserts provide a secure grip on boot carpet in Down-Firing orientation while allowing easy removal when cargo space is needed.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | APBX 10 S4S |
| Brand | Audison |
| Series | Prima |
| Nominal Diameter | 250mm (10") |
| Impedance | 4 Ohm |
| Power Handling (Continuous) | 400W |
| Power Handling (Peak) | 800W |
| Magnet Material | High Density Flux Ferrite |
| Cone Material | Cotton-Fibre Pressed Paper |
| Linear Excursion (One-Way) | 11mm |
| Enclosure Type | Sealed |
| Enclosure Depth | 142mm (5.6") |
| Dimension A | 470mm |
| Dimension B | 334mm |
| Dimension C | 120mm |
| Dimension D | 142mm |
| Firing Orientation | Down-Firing / Up-Firing (2S2) |
| Terminal System | SSP (Plug-and-Play terminal block and push contacts) |
| Grille | Sturdy metal grille (included) |
| Levelling Feet | Included (with velcro inserts) |
| Motor Optimisation | FEM (Finite Element Modelling) |
| Cone Development | FEM simulation, Klippel Scan Vibrometer |
What's in the Box
- 1x APBX 10 S4S Sealed Enclosure with APS 10 S4S Subwoofer Installed
- Sturdy metal grille
- Levelling feet with velcro inserts
- SSP Plug-and-Play terminal block
Goes Well With
The APBX 10 S4S is specifically developed for use with Audison AF bit amplifiers and is ideally driven by the Audison AF M8.14 bit using two channels bridged, which presents the enclosure with a closely matched amplifier power output at 4 ohms. The AF bit amplifier's integrated DSP parametric equaliser and bass boost feature allow the low-frequency response of the combined system to be precisely calibrated to the vehicle's acoustic environment. For a complete Audison Prima system, the APBX 10 S4S pairs with Audison Prima speaker components across the front and rear channels driven by separate AF bit amplifier channels.
Frequently Asked Questions
Is the APS 10 S4S subwoofer included in the APBX 10 S4S enclosure?
Yes. The APBX 10 S4S is a complete matched package with the APS 10 S4S driver pre-installed in the sealed enclosure. It is not an empty box. The driver and enclosure are engineered together as a system, and all performance specifications apply to the combined unit.
What is the difference between Down-Firing and Up-Firing installation?
Down-Firing installation orients the subwoofer cone facing the floor using the included levelling feet, which tends to increase low-frequency extension for deeper, more powerful bass output. Up-Firing installation orients the cone upward toward the cabin, producing more punch and transient definition. The choice depends on the vehicle's acoustic characteristics and the listener's preference. Both orientations are fully supported by the included hardware.
Why is the APBX 10 S4S specifically matched to AF bit amplifiers?
The APBX 10 S4S is designed as part of the Audison Prima ecosystem, where the driver, enclosure, and amplifier are engineered to work together. The AF bit amplifier's integrated DSP includes a bass boost feature and parametric equaliser that allow the low-frequency response of the APBX 10 S4S to be precisely tuned for any vehicle acoustic environment, compensating for the inherent roll-off characteristics of a compact sealed enclosure and optimising bass output for the installation conditions. While the enclosure can be driven by other amplifiers at 4 ohms and 400W continuous, the full system optimisation is achieved with the matched AF bit amplifier.
What does SSP (Sub Smart Plug) mean, and what connection options does it provide?
SSP stands for Sub Smart Plug. The terminal system on the APBX 10 S4S provides two simultaneous connection methods: a Plug-and-Play terminal block that accepts a quick-release connector for fast, secure installation and removal, and traditional push contacts for conventional bare speaker wire termination. The dual-method system supports flexible impedance configuration and is designed to eliminate connection errors during installation.
What is the significance of FEM optimisation and the Klippel Scan Vibrometer in the driver design?
FEM (Finite Element Modelling) is a computer simulation technique used during driver design to model and optimise the behaviour of mechanical and magnetic components before physical prototypes are built. In the APBX 10 S4S, FEM was used to optimise both the motor assembly for high-excursion control and the cone profile for accurate pistonic motion. The Klippel Scan Vibrometer is a measurement tool used to map the actual vibration behaviour of the cone at multiple points across its surface, confirming that the cone moves as a rigid piston rather than flexing or breaking up, and allowing further refinement of the cone geometry for low-distortion output.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Audison APBX 10 S4S 10" 800W Prima Sealed Subwoofer Enclosure
Engineered as a precision plug-and-play bass solution for Audison Prima systems, the APBX 10 S4S delivers a complete ultra-low-profile sealed subwoofer enclosure optimised for the APS 10 S4S driver and purpose-matched to AF bit amplifier integration.
Product Overview
The APBX 10 S4S is Audison's sealed subwoofer enclosure from the Prima range, designed to house the APS 10 S4S single 4-ohm voice coil subwoofer as a matched driver-and-enclosure system. The ultra-low profile enclosure measures just 142mm (5.6 inches) in depth, making it suitable for boot installations where vertical clearance is limited. The sealed design is precisely tuned to fully exploit the acoustic characteristics of the APS 10 S4S driver, delivering controlled, accurate bass output with the transient response characteristic of a well-matched sealed system.
The enclosure is specifically developed for use with Audison AF bit amplifiers, taking advantage of the bass boost feature and integrated parametric equaliser within the built-in DSP to fine-tune the system's low-frequency response for any vehicle acoustic environment. The 2S2 (2 Sides/2 Sounds) design supports both Down-Firing and Up-Firing installation orientations, with included levelling feet for Down-Firing use. The SSP (Sub Smart Plug) terminal block provides both Plug-and-Play quick-release connectivity and traditional push contacts for conventional wiring, simplifying installation and impedance configuration. Rounded corners ease positioning in the boot and act as structural reinforcement to reduce enclosure resonance. A sturdy metal grille is included for full driver protection. Handling 400 watts continuous and 800 watts peak at 4 ohms, the APS 10 S4S driver features a cotton-fibre pressed paper cone developed using FEM simulation, a massive motor assembly optimised with Finite Element Modelling, and a water-repellent treated cone surface rated for 11mm one-way linear excursion.
Features & Benefits
Ultra-Low Profile Sealed Enclosure Tuned for APS 10 S4S: At 142mm (5.6") depth, the APBX 10 S4S is designed for installations where a standard-depth subwoofer enclosure cannot fit. The sealed design is not a generic box but a precisely tuned acoustic environment matched to the APS 10 S4S driver's Thiele-Small parameters for optimal damping, frequency response, and power handling.
2S2 (2 Sides/2 Sounds) Dual-Firing Orientation: The enclosure supports Down-Firing installation using the included levelling feet for increased low-frequency extension and deeper bass, or Up-Firing installation for more punch and transient definition. Both options are available without additional hardware.
SSP (Sub Smart Plug) Terminal System: The SSP terminal block provides a Plug-and-Play quick-release connector alongside traditional push contacts, allowing fast, secure wiring during installation or removal and supporting flexible impedance configuration. The dual-method system leaves no room for connection errors.
FEM-Optimised Driver Motor Assembly: The APS 10 S4S driver's motor assembly is optimised using Finite Element Modelling (FEM) to deliver perfect control under high-excursion conditions, maintaining linear performance across the driver's full 11mm one-way excursion range.
Water-Repellent Cotton-Fibre Pressed Paper Cone: The 10" cone uses a cotton-fibre pressed paper construction with a water-repellent treatment, developed with FEM simulation and optimised using the Klippel Scan Vibrometer for accurate, low-distortion pistonic motion across the operating frequency range.
Cone-Dustcap-Basket Geometry for Long Linear Excursion: The specially designed geometry of the cone, dustcap, and basket assembly guarantees 11mm of one-way linear excursion, providing high output capability from a shallow-mount driver without mechanical stress on the suspension components.
Optimised for AF Bit Amplifiers with DSP Integration: The APBX 10 S4S is specifically developed for use with Audison AF bit amplifiers, designed to take advantage of the bass boost feature and integrated parametric equaliser within the built-in DSP for system-level tuning and compensation.
Rounded Corners for Placement and Structural Reinforcement: The enclosure's rounded corners ease positioning in the boot alongside other cargo and act as structural reinforcement, reducing panel resonance at the corners under high-output conditions.
Included Metal Grille for Driver Protection: A sturdy metal grille is included in the box, providing full mechanical protection for the subwoofer driver during and after installation.
Levelling Feet with Velcro Inserts: Included levelling feet with velcro inserts provide a secure grip on boot carpet in Down-Firing orientation while allowing easy removal when cargo space is needed.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | APBX 10 S4S |
| Brand | Audison |
| Series | Prima |
| Nominal Diameter | 250mm (10") |
| Impedance | 4 Ohm |
| Power Handling (Continuous) | 400W |
| Power Handling (Peak) | 800W |
| Magnet Material | High Density Flux Ferrite |
| Cone Material | Cotton-Fibre Pressed Paper |
| Linear Excursion (One-Way) | 11mm |
| Enclosure Type | Sealed |
| Enclosure Depth | 142mm (5.6") |
| Dimension A | 470mm |
| Dimension B | 334mm |
| Dimension C | 120mm |
| Dimension D | 142mm |
| Firing Orientation | Down-Firing / Up-Firing (2S2) |
| Terminal System | SSP (Plug-and-Play terminal block and push contacts) |
| Grille | Sturdy metal grille (included) |
| Levelling Feet | Included (with velcro inserts) |
| Motor Optimisation | FEM (Finite Element Modelling) |
| Cone Development | FEM simulation, Klippel Scan Vibrometer |
What's in the Box
- 1x APBX 10 S4S Sealed Enclosure with APS 10 S4S Subwoofer Installed
- Sturdy metal grille
- Levelling feet with velcro inserts
- SSP Plug-and-Play terminal block
Goes Well With
The APBX 10 S4S is specifically developed for use with Audison AF bit amplifiers and is ideally driven by the Audison AF M8.14 bit using two channels bridged, which presents the enclosure with a closely matched amplifier power output at 4 ohms. The AF bit amplifier's integrated DSP parametric equaliser and bass boost feature allow the low-frequency response of the combined system to be precisely calibrated to the vehicle's acoustic environment. For a complete Audison Prima system, the APBX 10 S4S pairs with Audison Prima speaker components across the front and rear channels driven by separate AF bit amplifier channels.
Frequently Asked Questions
Is the APS 10 S4S subwoofer included in the APBX 10 S4S enclosure?
Yes. The APBX 10 S4S is a complete matched package with the APS 10 S4S driver pre-installed in the sealed enclosure. It is not an empty box. The driver and enclosure are engineered together as a system, and all performance specifications apply to the combined unit.
What is the difference between Down-Firing and Up-Firing installation?
Down-Firing installation orients the subwoofer cone facing the floor using the included levelling feet, which tends to increase low-frequency extension for deeper, more powerful bass output. Up-Firing installation orients the cone upward toward the cabin, producing more punch and transient definition. The choice depends on the vehicle's acoustic characteristics and the listener's preference. Both orientations are fully supported by the included hardware.
Why is the APBX 10 S4S specifically matched to AF bit amplifiers?
The APBX 10 S4S is designed as part of the Audison Prima ecosystem, where the driver, enclosure, and amplifier are engineered to work together. The AF bit amplifier's integrated DSP includes a bass boost feature and parametric equaliser that allow the low-frequency response of the APBX 10 S4S to be precisely tuned for any vehicle acoustic environment, compensating for the inherent roll-off characteristics of a compact sealed enclosure and optimising bass output for the installation conditions. While the enclosure can be driven by other amplifiers at 4 ohms and 400W continuous, the full system optimisation is achieved with the matched AF bit amplifier.
What does SSP (Sub Smart Plug) mean, and what connection options does it provide?
SSP stands for Sub Smart Plug. The terminal system on the APBX 10 S4S provides two simultaneous connection methods: a Plug-and-Play terminal block that accepts a quick-release connector for fast, secure installation and removal, and traditional push contacts for conventional bare speaker wire termination. The dual-method system supports flexible impedance configuration and is designed to eliminate connection errors during installation.
What is the significance of FEM optimisation and the Klippel Scan Vibrometer in the driver design?
FEM (Finite Element Modelling) is a computer simulation technique used during driver design to model and optimise the behaviour of mechanical and magnetic components before physical prototypes are built. In the APBX 10 S4S, FEM was used to optimise both the motor assembly for high-excursion control and the cone profile for accurate pistonic motion. The Klippel Scan Vibrometer is a measurement tool used to map the actual vibration behaviour of the cone at multiple points across its surface, confirming that the cone moves as a rigid piston rather than flexing or breaking up, and allowing further refinement of the cone geometry for low-distortion output.
