Great small amps for mono applications where you need a lot of power in a small, efficient, full featured amp.  I’m listing these by the RMS power I’ve verified them at, not at their factory rating.  Use these when you’re doing a MEGA system with serious subs (top trunk or trike) as for all other motorcycle projects, smaller multi-channel amps are plenty.

• Class D Digital Mono block Amplifier.
• Full MOSFET PWM Power Supply
• SMD Technology on Double Sided PCB.
• 8ga Power & 8ga Speaker Output Terminals
• High & Low Level Signal Inputs.
• Remote Mount Gain Control Included.
• Variable 35-250Hz 12dB Low Pass Filter
• Variable 10-50Hz 12dB Subsonic Filter
• Variable 0-12 dB 45Hz Bass Boost.
• Total Harmonic Distortion: 0.5%.
• Frequency Response: 20-150 kHz.
• Signal-to- Noise Ratio: 70dB
• Damping Factor: > 250
• Input Sensitivity: 200mV-6V
• MINIMUM SPEAKER IMPEDANCE: 2 OHM ONLY