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 1152
Model name
1152
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
750
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
N/A
Output power (4Ω) (W)
600
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link
Image source - https://boulderamp.com/products/
More content
Nagaoka MP-700 – a Special Type of Moving Permalloy Cartridge
The new Nagaoka MP-700 cartridge tops the Moving Permalloy (MP) series and will be available in the standard MP-700 and premium MP-700H versions. Compared to conventional moving magnet (MM) cartridges, the Moving Permalloy (MP) variant features a lighter permalloy magnet attached to the cantilever.
Sennheiser ACCENTUM Open — New Affordable TWS Headphones from a Famous Company
Sennheiser has introduced the Sennheiser ACCENTUM Open TWS headphones – the model, designed in a stylish compact design, promises, according to the manufacturer, exceptional comfort during use and a secure fit.
Ranieri Audio Labs Varieta – a Preamplifier for Tube-Rolling
The Ranieri Audio Labs Varieta preamplifier has been released – the model uses directly heated triodes and allows for a wide range of tubes (300B, 2A3/6A3, 12A/201A, 26, 30, 31, 45, 50, 71A, 801A/10Y, 275A/252A, 245 and 842/VT52 will do). Simply ideal for those wishing to experiment with tube rolling.
Accuphase C-57 — Balanced Phonostage with Dual Mono Topology
Accuphase has introduced the Accuphase C-57 phono preamplifier, based on a fully balanced circuit design from output to input with dual mono topology. The Accuphase C-57 also uses a two-stage solution: the first stage is the output stage to ensure matching with MM and MC cartridges, the second stage is the correction amplifier itself.
Goldmund Rhea and Theia are Now Available in Passive Versions
Last year, Goldmund launched the impressive Goldmund Rhea and Theia acoustics in active versions with a wireless streamer. The all-in-one solution certainly looked brilliant, but High-End fans often prefer component systems. So now the company has introduced the Goldmund Rhea and Theia loudspeakers in a Passive version.
