SounDigital EVO PS 1200.4 — Compact 4-Channel Class-D Motorcycle Amplifier (1,200W RMS / 300W x4)
| Channels | 4 Channel |
| Power | 4x300W RMS |
| Year Range | 1998-2013, 2014-2023, 2024+ |
SounDigital EVO PS 1200.4 — 4-Channel 1200W Compact Amplifier for Motorcycle Audio Systems
The SounDigital EVO PS 1200.4 delivers powerful 4-channel performance in a compact chassis built specifically for motorcycle and powersports audio systems. With up to 4 × 300 W RMS or 2 × 600 W RMS bridged depending on model, this amp is ideal for pro-audio front stages, high-output mid-bass drivers, or full front + rear Harley Touring systems.
Key Features
- Up to 300 W RMS per channel (model dependent).
- Bridgeable design for high-power mid-bass or mixed-mode setups.
- High-efficiency Class-D topology optimised for motorcycle charging systems.
- Ultra-compact sealed chassis fits Harley fairings, saddlebags and amp trays.
- High-level & low-level inputs for OEM or aftermarket head unit integration.
- Thermal, overload & short-circuit protection for long-term reliability.
- 8–16 V operating range ideal for Harley electrical systems.
Why It Works on Harleys
- High real-world output for SPL-focused 6.5″, 8″ or 10″ pro-audio drivers.
- Flexible wiring options including 4-channel, bridged, and mixed-mode use.
- Compact footprint fits inside Street Glide and Road Glide fairings.
- Stable power delivery even at highway speeds and high temperatures.
- Excellent headroom for clean mid-bass and dynamic SPL performance.
Recommended System Use
- Front Stage Power: Ideal for 6.5″ or 8″ pro-audio speakers.
- Full Bike System: Run front + rear speakers across all channels.
- Bridged Mid-Bass: 2 × 600 W RMS for big mid-bass output.
- SPL Builds: Perfect for aggressive Harley audio systems requiring high output from a compact amp.
Fitment
- Designed for Harley-Davidson Touring motorcycles.
- Fits Street Glide, Road Glide, Ultra Limited, CVO and custom baggers.
- Compatible with most aftermarket amp racks and fairing mounts.
Specifications
| Impedance Versions | 2 Ω or 4 Ω models available |
| Power @ 4 Ω (2Ω Version) | 4 × 130 W RMS |
| Power @ 2 Ω (2Ω Version) | 4 × 198 W RMS |
| Power @ 1 Ω (2Ω Version) | 4 × 300 W RMS |
| Bridged @ 4 Ω (2Ω Version) | 2 × 396 W RMS |
| Bridged @ 2 Ω (2Ω Version) | 2 × 600 W RMS |
| Power @ 4 Ω (4Ω Version) | 4 × 198 W RMS |
| Power @ 2 Ω (4Ω Version) | 4 × 300 W RMS |
| Power @ 1 Ω (4Ω Version) | N/A |
| Bridged @ 4 Ω (4Ω Version) | 2 × 600 W RMS |
| Operating Voltage | 8 – 16 V |
| Current Draw (Music) | 49 A (2Ω) / 50 A (4Ω) |
| Current Draw (Max) | 99 A (2Ω) / 101 A (4Ω) |
| Recommended Fuse (Music) | 60 A |
| Total Efficiency | 84% (2Ω) / 82% (4Ω) |
| Damping Factor | 200 |
| Frequency Response (-3dB) | 5 Hz – 22 kHz |
| Signal-to-Noise Ratio | 88 dB |
| HPF | 45 Hz – 850 Hz |
| LPF | 45 Hz – 850 Hz |
| THD + N (10% Rated Power) | 0.1% |
| Dimensions (Inches) | 6.5 × 5.8 × 2.4 in |
| Dimensions (CM) | 16.6 × 14.9 × 6.2 cm |
Need System Advice?
The EVO PS 1200.4 is perfect for riders wanting serious pro-audio output from a compact 4-channel footprint. We can help you select matching speakers, wiring and charging upgrades to build a powerful, reliable Harley audio system.
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.