Boulder 3050 Mono Power Amplifier

The 3050 is Boulder's flagship monoblock power amplifier, hand-assembled and built to order in Louisville, Colorado, using the 99H gain stage exclusive to the 3000 Series.

It runs pure Class A biasing with analog management that reduces bias current to cut heat, using 120 output transistors and four DC-filtered transformers sealed in machined, epoxy-potted housings.

Its circuit boards mount in machined aluminum frames sandwiched with damping material, and its mirror-imaged left and right chassis use multiple surface angles to break up reflected sound.

Specifications

• Power: 1500W continuous into any load, peak 2100W at 8 ohms, 3000W at 4 ohms, 6000W at 2 ohms
• Topology: Class A to full rated output
• THD: 0.0005% to 0.011%
• Gain: 26dB
• Frequency response: +0.00/-0.04dB (20Hz to 20kHz)
• Inputs: balanced XLR only
• Outputs: dual wingscrew posts
• Weight: 355 lbs per amplifier, plus 86 lbs base