Power amplifiers stereo — Boulder 861

Name: 861
Brand: Boulder
Rating: 100 (1 reviews)

Description, images, technical data and specifications

Boulder 861
Image source — © Boulder

Boulder 861 is a two—channel power amplifier with a balanced circuit, outputs 2x90 watts (4 ohms). It features minimal distortion, high sound quality and reliability, and is ideal for audiophiles.

Specifications

Model name
861
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
100 000
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
75
Output power (4Ω) (W)
110
Gain (dBu)
26
Frequency response low +/- 3dB (Hz)
0.015
Frequency response high +/- 3dB (Hz)
150 000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.01
Max power consumption (W)
550
Damping factor
N/A
Dimensions (mm)
305 x 305 x 89
Weight (kg)
10
Official link
https://boulderamp.com/products/861-stereo-power-amplifier/

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