Audio Research Reference 330M Monoblock

The Reference 330M is Audio Research's current flagship monoblock power amplifier, an all-tube, fully balanced design with proprietary auto-bias and output tubes rated for roughly 3,000 hours of use.

It includes 12V trigger and RS-232 remote control along with automatic shutoff and tube monitoring.

Specifications

• Power: 330W continuous
• Tubes: six KT170 output, one ECC83 plus one 6H30 input, one 6550 plus one 6H30 power supply
• Inputs: balanced XLR and single-ended
• Bias: auto-bias, roughly 3000 hour rated output tube life
• Control: 12V trigger, RS-232
• Weight: 101 lbs