Precision Power MAA4.400 – Mini 4-Channel Class-D Amplifier for 1998–2023 Harley-Davidson Motorcycles (600W RMS / 150W x4 @ 2Ω)
$790.00 AUD
SKU: MAA4.400
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| Channels | 4 Channel |
| Power | 4x150W RMS |
| Year Range | 1998-2013, 2014-2023, 2024+, Trike 2009-2013, Trike 2014-2025, Trike 2026+ |
Mini 4-channel Class-D motorcycle amplifier – 150W × 4 RMS at 2Ω, purpose-built for 1998–2023 Harley-Davidson® Touring
The MAA4.400 is Precision Power's compact 4-channel Class-D amplifier, designed around the tight installation spaces of Harley-Davidson Touring fairings and saddlebags. At 235mm × 137mm × 48mm (9.25" × 5.375" × 1.875"), it fits where full-size motorcycle amps don't – behind the lower fairing panel, inside a saddlebag, or in the Tour-Pak® – while delivering 150W × 4 RMS at 2Ω from a stable Korean Class-D topology with less than 1% THD+N.
All four channels are independently configurable with high-pass, low-pass or band-pass crossover options, making it practical for two-speaker through four-speaker setups alike. Signal-sensing turn-on removes the need for a dedicated remote wire on factory-wired Harleys, and an RCA pass-through output lets you feed a second amplifier from the same source – useful for systems expanding into a subwoofer or rear stage.
- 150W × 4 RMS at 2Ω: Full headroom for 2Ω-capable speakers in fairing environments where bass management handles the heavy lifting – clean output at sustained riding volume.
- 100W × 4 RMS at 4Ω: Matched to standard 4Ω Harley-compatible speakers – plenty of power without thermal stress on the amplifier.
- 235mm compact footprint: Slides into fairing cavities, under-seat locations, and Tour-Pak spaces that full-size amps cannot access.
- Signal-sensing turn-on: Detects speaker-level input and powers on automatically – no remote wire required on stock-wired Touring models.
- 12 dB/oct crossovers: High-pass, low-pass and band-pass options on each channel for flexible staging – front fairing on HP, bag lids on LP or BP.
- RCA daisy-chain output: Pass-through RCA lets you run a second amplifier off the same signal source without splitting inputs at the head unit.
- All controls on one face: Gain, crossover frequency and crossover mode accessible from one side – no reaching around after installation.
Who This Is For
- Riders fitting an amplifier where space is tight – behind the lower fairing panel, inside a saddlebag, or in the Tour-Pak.
- Anything from a two-speaker to a four-speaker system, with high-pass, low-pass or band-pass set per channel.
- Stock-wired Touring models, since signal-sensing turn-on removes the need for a dedicated remote wire.
- Riders planning to expand later – the RCA pass-through feeds a second amplifier for a subwoofer or rear stage.
- CVO Touring owners should check first: factory Boom Audio wiring requires rewiring for aftermarket amplifier use.
Fitment
| Year | Model | Notes |
|---|---|---|
| 1998–2013 | Street Glide® | Fairing, saddlebag or Tour-Pak install |
| 1998–2013 | Road Glide® | Fairing, saddlebag or Tour-Pak install |
| 2014–2023 | Street Glide / Street Glide Special | Fairing, saddlebag or Tour-Pak install |
| 2015–2023 | Road Glide / Road Glide Special | Fairing, saddlebag or Tour-Pak install |
| 1998–2023 | Ultra Limited / Electra Glide® Ultra | Fairing, saddlebag or Tour-Pak install |
| 2009–2023 | Tri Glide® Ultra | Fairing, saddlebag or trunk install |
| 2014–2023 | CVO™ Touring models | Requires rewiring for aftermarket audio use |
CVO™ models with factory Boom!™ Audio require rewiring for aftermarket amplifier use – not all CVO configurations are compatible without additional modification. Confirm your bike's audio wiring before ordering.
Technical Specifications
| Channels | 4 |
| Topology | Class D |
| RMS Power @ 4Ω | 100W × 4 (14.4V, 1kHz, ≤1% THD+N) |
| RMS Power @ 2Ω | 150W × 4 (14.4V, 1kHz, ≤1% THD+N) |
| Total RMS | 600W |
| Bridged | 4Ω minimum speaker load per bridged channel pair (2 × bridged) |
| Input Sensitivity | 200mV – 6V (low-level RCA) |
| Turn-On | Signal sensing (speaker-level) |
| Crossover | 12 dB/oct HP / LP / BP (per channel) |
| RCA Output | Low-level pass-through for daisy-chaining |
| Dimensions | 235mm × 137mm × 48mm (9.25" × 5.375" × 1.875") |
| Country of Origin | South Korea |
| Warranty | 1 year through MAA as authorised dealer |
In the Box
- 1× MAA4.400 amplifier
- RCA input harness
- Power, ground and speaker wiring harnesses
- Mounting hardware
Related collections
This part is listed in: All 2014–2023 Touring Audio · Amplifiers · Precision Power – Amplifiers
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- $2,500 and above → FREE
- Bulky items → +$25 surcharge (waived once your order reaches $2,500)
Fast dispatch from Brisbane. In-stock orders placed before 1pm AEST usually ship the same business day.
Change of mind: Request a return within 30 days of delivery. The product must be unused, unopened and in its original sealed packaging, valued at $50 or more, and you'll need an RMA number from us before sending anything. Return freight is yours, and a restocking fee of up to 15% may apply – we'll confirm any fee before the return is accepted.
Not returnable for change of mind: opened, installed or test-fitted items, special-order and custom products, custom harnesses, completed tuning, gift cards and items under $50.
Fitment: If we confirmed fitment in writing based on accurate bike details and it doesn't fit, we'll put it right and cover reasonable freight. Not sure? Ask us before you order – we're happy to help.
Faulty, damaged or wrong item: Contact us first with your order number. Faults follow our RMA and warranty process, and none of this affects your rights under the Australian Consumer Law.