Compact Size. Legendary Boulder Sound.
 
At Music Lovers Audio, we are proud to offer the Boulder 1163 Stereo Power Amplifier, a premium two-channel amplifier designed for audiophiles seeking world-class performance in a more compact, space-conscious design. Handcrafted in Boulder, Colorado, the 1163 embodies the sonic purity and engineering precision that Boulder Amplifiers are known for—delivering exceptional detail, power, and musicality.
 
If you're searching for a high-end stereo amplifier, the Boulder 1163 is a standout choice. With 150 watts per channel into 8 ohms (and up to 325 watts into 2 ohms), this amplifier effortlessly drives a wide range of high-performance speakers. Its low-distortion, fully balanced circuitry ensures crystal-clear audio reproduction, whether you're listening to vinyl, digital sources, or streaming high-resolution audio.
 
The 1163 is the perfect match for serious two-channel systems where space is at a premium but performance cannot be compromised. It shares the same footprint as Boulder’s acclaimed 1110 Preamplifier, making it ideal for rack-mounted or furniture-based high-end audio systems.
 
Why Choose the Boulder 1163 Stereo Power Amplifier from Music Lovers Audio?
Trusted authorized dealer of Boulder Amplifiers
Expert service and personalized system matching
In-store consultations
 
Key Features of the Boulder 1163 Stereo Amplifier:
150W per channel into 8 ohms / 325W into 2 ohms – powerful enough for even demanding speakers
Fully balanced design – reduces noise and improves clarity
Proprietary 985 gain stage – for exceptional sonic transparency and dynamics
Automatic bias circuitry – ensures optimal performance without manual adjustments
Compact chassis – same size as Boulder 1110 Preamplifier, ideal for space-conscious high-end systems
Advanced protection circuitry – protects your investment with real-time fault detection
Ethernet and USB connections – for firmware updates and system integration
 
Audiophile Performance in a Smaller Package
Unlike larger, more imposing mono block amplifiers, the Boulder 1163 delivers reference-level stereo sound in a design that fits comfortably in any high-end audio setup. It’s an ideal solution for those looking to upgrade to audiophile-grade amplification without the need for oversized components.
 
Pair the 1163 with the Boulder 1110 Preamplifier, reference loudspeakers, or premium DACs and streamers for an unparalleled listening experience.
 
Technical Specifications:
Power Output: 150W (8Ω), 325W (2Ω)
THD: 0.002% at 150W into 8 ohms
Frequency Response: +0.00, -0.04 dB (20Hz – 20kHz)
Input Impedance: 50kΩ balanced, 25kΩ unbalanced
Weight: 54 lbs (24.5 kg)
Inputs: Balanced XLR
Outputs: High-current binding posts