SP-DSP 10 CHANNEL (D10)
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SUPER POWER AUDIODESIGNED IN ITALY
MMXXVI
SP-DSP 10CH — ten channels, each tuned on its own
A pure processor, not an amplifier: it takes your factory or aftermarket source and hands out ten independent line outputs at 4 Vrms, each one with its own 31-band parametric EQ, its own crossover, its own phase and its own time alignment. Inputs for everything: 8 high-level channels from the factory head unit, 2 RCA line inputs, Bluetooth 5.0, USB, optical and coaxial, decoded at 24-bit / 96 kHz. Tuned from the A10.PC software on a laptop or from the A10 Android app, with six complete scenes saved on the unit.
What the numbers actually say
These are the manufacturer’s declared figures for the SP-DSP 10CH (manual Rev. 1.0, September 2026). Read them the right way round: this is a processor, not a power amplifier. All ten outputs are line level and must feed an external amplifier’s RCA inputs — never a speaker directly. What you buy is control: ten channels that can each be equalised, crossed over, delayed and phased on their own, with a 24-bit / 96 kHz core, dynamic range and signal-to-noise both ≥ 96 dB and THD ≤ 0.01%.
Why ten channels change what a system can do
Ten outputs mean front tweeters and midrange, rear fill, a centre channel and one or two subwoofers can each get their own crossover point, level and delay. That is the difference between speakers that play and a system that is actually tuned to the car.
A 31-band parametric equalizer on every one of the ten channels, 20 Hz – 20 kHz in 1 Hz steps, Q from 0.4 to 10 and gain from −20.0 to +20.0 dB in 0.1 dB steps. Drag a point on the curve, or type the exact values.
Enter each speaker’s delay — 0 to 15 ms, shown also as 0 to 500 cm — and every driver’s sound reaches your ear at the same moment. A speaker farther away arrives later, so you delay the closer ones.
USB, optical and coaxial all bypass the analogue input entirely and decode at up to 24-bit / 96 kHz. Order of preference: USB, then optical or coaxial, then high-level or RCA. Bluetooth 5.0 streams straight into the processor as a source of its own.
8 high-level channels take the factory head unit’s speaker outputs directly, with HI-INSENS trims in two groups to match the level. Or use the 2 RCA line inputs from an aftermarket source, which is the cleaner path when you have it.
LINE OUT 1–10 are not hard-wired to «front / rear / sub»: every output’s source, EQ, crossover and delay are set in the software, and every channel can be renamed to match your install. Save the finished tuning as one of six scenes.
Both panels and the footprint
3 HI-INSENS 1-4 trim · 4 HIGH INPUT, 16-pin harness, channels 1–8 · 5 HI-INSENS 5-8 trim · 6 REMOTE port for the optional wired level control · 7 PC, USB-B to the tuning computer, driver-free
5 LINE OUT 1–10, ten-channel low-level RCA output at 4 Vrms to the external amplifiers
Safety, box contents, a full product tour, both panels port by port, the dimension drawing, planning and the two turn-on modes, connecting inputs and outputs, the A10.PC software and the A10 app, the whole EQ / crossover / phase / delay chapter, the troubleshooting table and the factory specification sheet.
⇩ Download the SP-DSP 10CH manual (PDF)PDF · 0.9 MB · English · Rev. 1.0, September 2026
What is in the box
Unlike the MINI amplifier series, the SP-DSP 10CH ships in its standard retail packaging with the power and high-level harness. Check the carton before you start: no dents, all four corner screws present, panels clean.
Included: SP-DSP 10CH processor · power + high-level composite cable (4-pin power plug and 16-pin high-level harness) · high-level input plug · user manual
Not included: the RCA cables to your amplifiers, any additional power cable with its inline fuse, and the optional wired remote level control that connects to the REMOTE port — installation materials that depend on the car. The A10.PC software and the A10 Android app are free downloads.
Technical specifications
| THE PRODUCT | |
|---|---|
| Product | SPAUDIO SP-DSP 10CH — 10-channel digital signal processor |
| Series | DSP Series · Italian design by Audiocar Import & Export, Milano |
| Type | Processor only — all outputs are line level, an external amplifier is required |
| INPUTS | |
| High-level | 8 channels, 5 – 15 Vrms (with EPS) |
| Low-level (RCA) | 2 channels, 1 Vrms |
| Digital | Bluetooth 5.0, USB, optical, coaxial |
| Input impedance, low level | 15 kΩ |
| Input impedance, high level | 15 Ω |
| OUTPUTS | |
| Line outputs | 10 channels, 4 Vrms |
| Output impedance | 82 Ω |
| Output gain | Mute, −60 to 0 dB |
| AUDIO | |
| Dynamic range (RCA in) | ≥ 96 dB |
| Signal-to-noise ratio (RCA in) | ≥ 96 dB |
| Total harmonic distortion | ≤ 0.01% @ 1 kHz, 1 V |
| Frequency response | 10 Hz – 22 kHz (−3 dB) |
| Decoding | 24-bit / 96 kHz |
| DSP | |
| Parametric EQ | 31 bands per channel, 20 Hz – 20 kHz in 1 Hz steps, Q 0.4 – 10, gain −20.0 to +20.0 dB |
| EQ gain accuracy | 0.1 dB steps |
| Crossover | Butterworth · Linkwitz-Riley, 6 – 48 dB/oct, cutoff 20 Hz – 20 kHz |
| Phase | 0° / 180° per channel |
| Time alignment | 0 – 15 ms (0 – 500 cm / 0 – 272 in) |
| Presets | 6, saved on the unit |
| POWER & MECHANICAL | |
| Supply | 10 – 16 V DC |
| Standby power | ≤ 0.1 W |
| REM output | 12 V DC, ≥ 0.2 A |
| Dimensions L × D × H | 162 × 141.5 × 45 mm |
| Mounting points | 4, on the base |
| Operating temperature | −20° to 80°C |
| Control | USB (A10.PC software) · Bluetooth 5.0 (A10 Android app) |
Every figure on this page comes from the SP-DSP 10CH professional user manual, Rev. 1.0, September 2026. The factory documentation for this model does not declare the unit weight, so we do not publish it. Specifications may change without notice.
Build the rest of the system
Read this before you install
- Disconnect the battery before wiring. Working live on the power, ACC or REM OUT lines can damage the processor or the vehicle’s electronics.
- Supply voltage 10–16 V DC only. Do not power the unit from anything outside this range.
- These are line-level outputs only. They must feed an external amplifier’s RCA inputs, never a speaker directly.
- Match the turn-on mode to your wiring. In DC mode the unit switches on from a high-level input signal: make sure the factory head unit is fully off once the vehicle is locked, or the processor and anything wired to REM OUT will stay on and drain the battery.
- Keep RCA runs away from power cables. Ten outputs mean ten chances to pick up alternator whine: cross signal and power at 90°, never run them together.
- Mount it dry and within −20° to 80°C. Not near the exhaust, not in direct sun behind glass, and leave the USB-B and REMOTE ports reachable.
- Photograph the serial-number label underneath before you mount the unit: once installed you may not see it again, and it is asked for in every support request.
- Never open the case. There is nothing to adjust inside and opening it voids the warranty.
Questions we actually get asked
spaudio@spaudio.it · +39 340 807 8778
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SP AUDIO · Audiocar Import & Export SRLS — Official SP AUDIO Distributor for Europe · Piazza IV Novembre 4, 20124 Milano (MI), Italy · VAT IT13085510967. All technical data on this page is the manufacturer’s declared data from the SP-DSP 10CH professional user manual Rev. 1.0 (September 2026) and may change without notice.