Velocity RZA500.2 — 2-Channel Class-D Amplifier for Harley-Davidson (550W RMS / 275W x2 @ 2Ω)
| Channels | 2 Channel |
| Power | 2x275W RMS |
| Year Range | 1998-2013, 2014-2023 |
Velocity RZA500.2 – 550W 2-Channel Amplifier for Harley-Davidson Touring
The Velocity RZA500.2 is a powerful, compact 2-channel amplifier engineered specifically for motorcycle audio systems. Delivering up to 550 watts of clean Class-D power, this amp is ideal for driving high-efficiency mids, horn tweeters or a pair of aggressive 6×9 speakers in Harley-Davidson Touring models.
Designed to fit inside tight Road Glide and Street Glide fairings, the RZA500.2 offers excellent thermal stability, strong voltage tolerance and the reliability required for long-distance touring and SPL-style audio builds.
This amp is available in two configurations: the RZA500.2-WP model includes a premium waterproof 8AWG power harness kit, while the RZA500.2 model is offered amplifier-only for riders who already have power distribution installed.
Key Features
- 550W peak output from a compact, motorcycle-ready chassis.
- 2-channel power ideal for mids, horns or paired 6×9 speakers.
- Class-D efficiency reduces strain on Harley charging systems.
- Premium waterproof 8AWG power harness option (WP variant).
- American Hard Bag engineered for durability and high-vibration environments.
- Perfect for Harley Touring fairings and saddlebags.
Why It Works on Harleys
- Compact dimensions make installation simple in tight fairing cavities.
- High-efficiency design ensures reliable power without overheating.
- Two-channel flexibility supports mids/horns, 6×9 pairs or component sets.
- Optional waterproof harness eliminates wiring guesswork and improves durability.
Available Variants
- RZA500.2 — Amplifier only (no power kit)
- RZA500.2-WP — Includes premium 8AWG waterproof power harness kit
Recommended System Use
- Fairing systems running 6.5″ mids + horns.
- Saddlebag lid systems driving 6×9 coax or component setups.
- Touring audio with strong mid/high output needs.
- SPL builds requiring stable, high-current 2-channel amplification.
Fitment
- Harley-Davidson Touring Models (Road Glide, Street Glide, Ultra, CVO, etc.)
- Compatible with AHB amp trays, custom plates and most aftermarket mounting solutions
- Works with OEM and upgraded charging systems
Specifications
| Model | Velocity RZA500.2 |
| Power Output | 550W peak |
| Channels | 2 |
| Topology | Class-D |
| Harness Options | RZA500.2 (no kit) / RZA500.2-WP (with 8AWG power harness) |
| Recommended Speakers | 6.5″ mids • Horn tweeters • 6×9 speakers |
What's Included
- Velocity RZA500.2 Amplifier
-
RZA500.2-WP Variant Includes:
- Premium 8AWG waterproof power harness
- Inline fused power assembly
- Waterproof connectors
- RZA500.2 Variant Includes: Amplifier only
- Mounting Hardware
Need Help Choosing the Right Variant?
If you're upgrading an existing system and already have a distribution block or aftermarket wiring, choose RZA500.2. If you want a ready-to-install, waterproof and fused harness, choose RZA500.2-WP.
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.