B2 Audio RIOT 1800.4 RGB Class D 4-Channel Amplifier 1800W RMS
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
Subwoofer Wiring Diagram
Select your configuration to view possible wiring combinations.
Loading wiring diagrams…
Diagrams are on our wiring diagram page.
- 1800W RMS total — Class D 4-channel amplifier
- RMS @ 4Ω: 300W x4 — clean, rated power
- Class D efficiency — runs cool under sustained output
- RGB-illuminated 4-channel full-range amplifier
This Listing Includes: (1) B2 Audio RIOT 1800.4 RGB Amplifier
The B2 Audio RIOT 1800.4 RGB is a Class D 4-channel amplifier rated at 1800W RMS total. RGB-illuminated 4-channel full-range amplifier. Authorized B2 Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Specifications
| Amplifier Class | Class D |
| Channels | 4-Channel |
| RMS @ 4Ω | 300W x4 |
| RMS @ 2Ω | 450W x4 |
| Bridged @ 4Ω | 900W x2 |
| Fuse | 150A |
| Frequency Response | 10 Hz – 40 kHz |
| S/N Ratio | > 90 dB |
| Power Terminal | 1 Gauge |
| Dimensions | 13.82" L x 4.92" W x 2.24" H |
