HKI Mini DSP — 8-Channel Digital Sound Processor for Motorcycle & Powersports Audio
| Configuration | 8 in / 8 out |
| Year Range | 1998-2013, 2014-2023, 2024+ |
HKI Mini DSP — 8-Channel Digital Sound Processor for Motorcycle & Powersports Audio
The HKI Mini DSP is a compact 8-channel digital signal processor designed to give you full control over your audio system tuning in motorcycles, cars, UTVs and marine applications. Roughly the size of a mobile phone, it offers 4-channel RCA inputs and 8-channel RCA outputs with powerful EQ, crossover and time-alignment tools so you can shape your system exactly how you want it.
Key Features
- 4-input / 8-output DSP architecture — perfect for multi-amp, multi-speaker systems.
- Smartphone-based setup — designed for mobile programming and easy tuning access.
- Conformal-coated PCB to help protect against moisture and harsh environments.
- High-resolution 32-bit processing with 96 kHz sampling for clean, detailed sound.
- Input EQ (15 bands) and output EQ (8 bands per channel) for precise tuning.
- Advanced crossover options — Linkwitz-Riley, Butterworth, Bessel up to 48 dB/oct.
- Time alignment per channel to centre the sound stage at the rider’s position.
- Built-in limiter with adjustable threshold, attack and release to protect your speakers.
- Three user presets so you can switch between different tuning profiles.
Why It Works on Harleys & Motorcycles
- Small footprint — easy to hide in the fairing, saddlebag or under a side cover.
- Conformal coating helps it survive in bikes, buggies and off-road gear.
- Fine control over EQ and time alignment to overcome harsh motorcycle acoustics.
- Ideal front-end for multi-amp systems running front, rear, lids and subs.
- Preset switching lets you have different tunes for solo, two-up or “parked and loud”.
Recommended System Use
- Harley Touring audio builds: Integrate with multiple amplifiers for front, rear, saddlebag and subwoofer channels.
- Custom bagger systems: Perfect for pro-audio style speakers and staged upgrades.
- UTV / SxS / Marine: Tune multiple speaker zones from a single compact DSP.
- OEM radio integration: Clean up factory EQ and correct frequency response before your amps.
Fitment
- Suitable for Harley-Davidson Touring and other motorcycles.
- Also ideal for cars, UTVs, marine and off-road audio systems.
- Compact size allows mounting in fairings, saddlebags, side covers or amp racks.
Specifications
| Inputs | 4 × balanced RCA |
| Max Input Level | 4 Vrms (+14 dBu) |
| Input Impedance | 100 kΩ |
| Outputs | 8 × RCA |
| Max Output Level | 3.5 Vrms (+13 dBu) |
| Frequency Response | 10 Hz – 24 kHz (–1 dB) |
| THD + N | < 0.01% |
| Bit Depth | 32-bit |
| Sampling Frequency | 96 kHz |
| Crossovers | Linkwitz-Riley / Butterworth / Bessel (up to 48 dB/oct) |
| Input EQ | 15 bands |
| Output EQ | 8 bands per channel (Q: 0.6 – 0.99) |
| Time Alignment | 0 – 18.95 ms |
| Limiter Threshold | –54 to +6 dB |
| Limiter Attack | 1 – 200 ms |
| Limiter Release | 1 – 988 ms |
| Phase Control | Per channel |
| Presets | 3 user-selectable |
| Dimensions (Inches) | 5.9 × 4.3 × 1.7 in |
Need System Advice?
The HKI Mini DSP is the brain of a serious motorcycle audio system. If you’re planning multi-amp or multi-speaker builds, we can help you design the signal flow, recommend matching amplifiers and speakers, and guide you on a sensible starting tune.
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- Over $2,500 → FREE
- Bulky items → +$24.95 surcharge (waived over $2,500)
Fast dispatch from Brisbane. Same-day shipping on in-stock orders before 1pm AEST.
Change-of-mind returns: We accept returns within 7 days of delivery on unused, unopened products in original sealed packaging. Restocking fees apply (20–30%). Return shipping is the customer's responsibility.
No returns on opened audio gear, installed items, custom orders, or special-order products. Please check fitment carefully before installing.
Faulty or incorrect items: If you experience an issue, contact us with photos/video and your order number. We'll assess the claim and arrange repair, replacement, or refund for verified faults under the Australian Consumer Law.
Fitment assistance: If you're unsure about compatibility, reach out before ordering—we're happy to help.