Boulder 1152 — a monoblock amplifier with a stunning 750 W
The American company Boulder has released a monoblock power amplifier under the number 1152. According to the developers, Boulder 1152 is capable of driving almost any speaker system on the market. The amplifier is capable of delivering 350 W per channel at 8 Ohm, 600 Ohm at 4 Ohm and 750 Ohm at 2 Ohm load. The compact design has the same footprint as the 1110 preamplifier.
A new protection circuit safely and immediately switches off the output section in the event of a short circuit in the speaker cables or malfunctions in the system. The redesigned and modernized automatic bias circuit accurately stabilizes the operating parameters. The Boulder 1152 output stage uses 40 transistors and 12 power capacitors. Thus, it was possible to achieve stable output power even with a complex load.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Power amplifiers mono — Boulder 1151
Model name
1151
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
200 000
Input impedance (single-ended) (Ω)
100 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
350
Output power (4Ω) (W)
600
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) (%)
0.002%, 20kHz 0.01% (8 Ohms)
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
24.5
Official link
Image source - https://boulderamp.com/products/
