The amp was a Lanzar Optidrive 2150 and here's the spec:
- 75W per Channel Into 4 ohms.
- 150W per Channel Into 2 ohms.
- 300W Mono Bridged @ 4 ohms.
- Optically Coupled Power Supply Connections.
- Built-In 45dB Bass Boost @ 45Hz.
- Gold Plated RCA Connectors.
- Mosfet Power Supply.
- Simultaneous Stereo/Mono Operation.
- Mute On/Off Circuit.
- Discrete Fully Complimentary Triple Darlington Output Stages.
- Built-In Short and Thermal Protection Circuits.
- Stealth Mounting Design; Variable Gain Control.
- Built-In Sub-Bass Crossover @ 90Hz.
Thanks