Hertz Audio S8 DSP Motorcycle/Powersports DSP
Hertz Audio S8 DSP Motorcycle/Powersports DSP
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Hertz Audio S8 DSP Motorcycle/Powersports DSP
The Hertz S8 DSP is a compact digital sound processor with six inputs and eight outputs, built for cars, motorcycles and boats. It gives you per-output crossover, parametric EQ and time alignment so a multi-speaker bagger system can be tuned instead of guessed.
Tune every speaker output individually.
Six inputs (low-level and speaker-level) feed an eight-channel matrix with crossover, EQ and time alignment on each output.
- 32-bit DSP, 96 kHz / 24-bit
- 6 inputs and 8 low-level outputs
- 15-band parametric EQ per output
Key Product Details
| Brand | Hertz |
| Type | Digital sound processor (DSP) |
| Inputs | 6 low-level (Pre) channels, 6 high-level (Speaker In) channels, 1 coaxial S/PDIF digital input |
| Outputs | 8 low-level channels |
| Processor | 32-bit DSP, 96 kHz / 24-bit |
| Control | Micro USB to PC, Bluetooth 5.0 BLE to the configuration app |
Bluetooth on the S8 DSP is for the configuration app only; music streaming is not supported.
Where the S8 DSP Fits in a Bagger System
The six inputs can be mapped to the eight outputs through a matrix, or you can start from a preset. Speaker-level inputs have a built-in Universal Speakers Simulator (USS), so the processor can be fed from a factory-style speaker-level signal as well as from low-level (RCA-style) inputs. Because every output has its own crossover, EQ and delay, one processor can manage fairing speakers, lid speakers and a subwoofer on separate amplifier channels.
Planning the Channels
Count your amplified outputs first: the S8 DSP has eight low-level outputs, so an eight-output plan covers four speaker pairs or a mix of speakers and subwoofers. Mount it where it is protected, keep the wiring paths clean, and pair it with amplification that matches your speaker plan. If you are mapping fairing speakers, saddlebag lids and a subwoofer together, start with a build consultation so the channel plan is settled before you order.
Specifications
| Supply voltage | 7 to 20 VDC, 1 A fuse |
| Idle current | 340 mA |
| THD | 0.004% (1 kHz THD+N, 1 Vrms output) |
| Bandwidth | 10 Hz to 40 kHz (±3 dB) |
| Pre In sensitivity | 0.8 to 6 Vrms |
| Speaker In sensitivity | 2.5 to 21 Vrms |
| Max output | 4 Vrms at 0.1% THD+N |
| Crossover filters | Linkwitz-Riley (12, 24 dB/oct), Butterworth and Bessel (6 to 30 dB/oct), plus all-pass |
| Crossover range | 20 Hz to 20 kHz, 0° or 180° phase |
| Input EQ | 7-band parametric per input channel, ±12 dB |
| Output EQ | 15-band parametric per output channel, ±12 dB |
| Time alignment | 0 to 13.58 ms per output, 0.02 ms steps |
| Operating temperature | 0 °C to 55 °C (32 °F to 131 °F) |
| Software | Windows 10/11, macOS 10.13 or later; iOS and Android configurator apps |
Specifications per the manufacturer's product page.
Related Paths
Hertz S8 DSP FAQ
How many inputs and outputs does the Hertz S8 DSP have?
It has six low-level inputs, six high-level speaker-level inputs, one coaxial S/PDIF digital input and eight low-level outputs.
Can it take a speaker-level signal?
Yes. The six Speaker In channels accept 2.5 to 21 Vrms and include a built-in Universal Speakers Simulator.
How do I tune it?
Through the Micro USB port to a Windows or macOS computer, or over Bluetooth 5.0 BLE with the iOS or Android configurator app.
Can I stream music to it over Bluetooth?
No. The Bluetooth connection is for configuration and remote control only.
What EQ and time alignment are available?
Each output has a 15-band parametric EQ (±12 dB), its own crossover and a time-alignment delay of up to 13.58 ms.
Need Help Choosing?
Tell us your bike, model year and what you want to add, and we will confirm fitment and the right parts before you order.