Boulder 1162 Stereo Amp – a Mighty Power Amplifier
14.02.2025 11:03 | ~1 minute read
The American manufacturer of High-End audio equipment, Boulder, has introduced a new stereo power amplifier, the Boulder 1162. The model offers 2 x 300 watts of power into 8 ohm speakers and a staggering 2 x 900 watts into 4 ohm load.
As is typical for this line, the Boulder 1162 is housed in a recognizable case with a machine front panel depicts the topography of Flagstaff Mountain near Boulder, Colorado. The amplifier uses the proprietary Class-A Smart Current Biasing Circuit topology, and the power supply (dual power transformers are DC filtered and enclosed a welded steel case) with a 32 Amp IEC pre-terminated power cord (supplied in order).
Boulder 1162 uses newly developed protection circuitry. There is also an additional Ethernet-enabled supervisor circuitry on board, which monitors amp and protection systems. The Boulder 1162 weighs 61.2 kg.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Power amplifiers stereo — Boulder 1162
Model name
1162
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
200000
Input impedance (single-ended) (Ω)
100000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
2 x 300
Output power (4Ω) (W)
2 x 900
Gain (dBu)
26
Frequency response low +/- 3dB (Hz)
0.015
Frequency response high +/- 3dB (Hz)
150000
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
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
61.2
Official link
More content
SMSL VMV A1 Pro - Integrated Amplifier on GaN FET Transistors
The SMSL company presented the SMSL VMV A1 Pro power amplifier - using lnfineon's latest GaN FET transistors, with a switching frequency of up to 1 MHz. Such unique circuitry guarantees, according to the company, absolutely natural sound and up to 400 W of output power.
Treehaus Audiolab LCR Phono – a Vacuum Tube Phonostage with Passive Equalization
Treehaus Audiolab has announced the Treehaus Audiolab LCR Phono reference vacuum tube phono preamplifier. To equalize the signal, the device uses only passive components: inductors (L), capacitors (C) and resistors (R).
Rotel DX-5 – a Tiny Amplifier Operating in Class A/B
Rotel DX-5 is a compact model, but despite its dimensions, the device does not use digital amplification and operates in class A/B, reaching 2 x 33 W into 4 Ohm load and 2 x 25 W into 8 Ohm speakers. The new product is equipped with a power supply based on a powerful toroidal transformer created by Rotel itself, and high-current transistors.
TOTALDAC d1-total – a Fully “Packed” DAC and Streamer
The Totaldac d1-total digital-to-analog converter has been introduced – according to the company, this device guarantees the maximum possible for a single-block design with external PSU. “Under the hood”, in addition to the d1-triunity DAC converter, there is also volume control, a network streamer (latest version developed for the d1-streamer-live), 40 femtoseconds oscillators, a microfilter USB loop (developed for the d1-streamer-live) and anti-vibration supports.
Audio-Technica Hotaru – a Firefly Turntable
Japanese company Audio-Technica has announced the imminent opening of pre-orders for a limited edition of the innovative Audio-Technica Hotaru turntable (since May 30, 2025). The model will go on sale in October of this year at a price of $ 9,990 US - only 1000 turntables will be made.
