Boulder Amplifiers manual Boulder 860 Stereo Power Amplifier Specifications

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BOULDER 860 STEREO POWER AMPLIFIER SPECIFICATIONS

THD at Continuous Power, 20 to 2KHz

0.0035%

THD at Continuous Power, at 20KHz

0.018%

Continuous Power, 8 Ω

150W

Continuous Power, 4 Ω

150W

Peak Power, 8 Ω

150 W

Peak Power, 4 Ω

300 W

Magnitude Response, 20 to 20KHz

+0.00, -0.04 dB

Magnitude Response, -3 dB at

0.015Hz, 150kHz

Voltage Gain

26dB

Signal to Noise Ratio (re: 500W/8Ω)

-108dB, unweighted, 20 to 22kHz

Input Impedance

Balanced: 50KΩ, Unbalanced: 25KΩ

Common Mode Rejection (Balanced only)

60Hz: 90dB, 10kHz: 70dB

Inputs

3-pin Balanced

Output Connectors

6 mm / .250 inch thumbscrews

Crosstalk, L to R or R to L

Greater than 112dB

Size, Inches, Width X Height X Depth

17.0W x 7.38H x 15.25D Speaker connectors add 1.50 to depth

Power Requirements

Voltage suitable for country where sold

 

50-60 Hz, 850 W at maximum

All specifications taken at 120 VAC mains power

 

5-1

 

APPENDIX

 

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Contents Page Boulder Watt Stereo Power Amplifier Boulder 860 Stereo Power Amplifier Rear Panel Table of Contents Appendix Getting Started Placement of the 860 Stereo Power AmplifierConnecting to the Mains Outlet Connecting a Balanced Source Connecting AN Unbalanced Source Polarity Connecting Your LoudspeakersOperation Powering UPClip Detection Shorted Output Detection MaintenanceThermal Protection Volt Trigger Remote Control OperationBoulderlink Connecting BoulderlinkSetting Boulderlink ID Numbers Setting Boulderlink SwitchesPower UP VIA Boulderlink Boulderlink Messages Boulder 860 Stereo Power Amplifier Specifications Troubleshooting Symptom Cause Remedy Appendix