The art of technological progress, beautifully expressed in the art of visual design, in an amplifier of truly remarkable ability. Let us present to you the Boulder 1160 Stereo Power Amplifier, recognized by media and editors in the US, Taiwan, France, China, England, Japan, Poland, Hong Kong, and Italy with eleven awards for exceptional ability. Awe-inspiring and modern, yet staying true to Boulder’s long-standing guiding principle: maximize performance. Every circuit has been refined and every mechanical detail has been optimized. Everything about the 1160 is executed to a spectacularly high standard. As a result, it is exactly what you would expect: brilliant.
CONTINUOUS POWER; 8, 4, 2 OHMS300W
PEAK POWER, 8 OHMS: 300W
PEAK POWER, 4 OHMS: 600W
PEAK POWER, 2 OHMS: 1200W
THD, 8 OHMS, 300W 20-2 kHz: 0.0009%, 20 kHz: 0.0048%
THD, 4 OHMS, 300W 20-2 kHz: 0.0016%, 20 kHz: 0.0071%
THD, 2 OHMS, 300W 20-2 kHz: 0.002%, 20 kHz: 0.0130%
EQUIVALENT INPUT NOISE (EIN), 20 KHZ, BW: 1.5 μV
MAGNITUDE RESPONSE, 20 HZ TO 20 KHZ +0.00, -0.04 dB
MAGNITUDE RESPONSE, -3 DB AT 0.015 Hz, 150 kHz
VOLTAGE GAIN: 26 dB
SIGNAL TO NOISE RATIO (RE: 300W/8Ω) -127 dB, unweighted, 20 to 22 kHz
INPUT IMPEDANCE: Balanced: 100k ohms,
Unbalanced: 50k ohms
COMMON MODE REJECTION (BALANCED ONLY): 60 Hz: 90 dB, 10 kHz: 70 dB
CROSSTALK, L TO R OR R TO L: Greater than 120 dB
INPUT CONNECTOR: S3-pin balanced XLR
OUTPUT CONNECTORS: Two sets of 6 mm / .250-inch wingscrews
WEIGHT: Amplifier: 135 lbs. (61.2 kg)
Shipping: 215 lbs. (97.5 kg)
POWER REQUIREMENTS: 100, 110-120, 220-240 VAC, 50-60 Hz
The 1160 power amplifier is truly superb piece of gear. It does have its own sound character, and this is audible even using a wide variety of front ends, interconnects, cables, and speakers. If you are building or improving a great system, you still need to listen carefully to the Boulders’ nuances and give it the same attention you do in auditioning every other component. You also need to be aware that you will hear the different mix of nuances imposed by your other components once you insert them into your particular system.