Audio Research
Reference 160S Stereo Power Amplifier
Experience unparalleled audio fidelity with the Audio Research Reference 160S Stereo Power Amplifier. Building on the legacy of its acclaimed monoblock predecessors, this stereo amplifier delivers breathtaking resolution, dynamic impact, and pure musicality. It features a captivating design with dual GhostMeters™ and eight KT150 output tubes. Enjoy flexible listening with switchable Triode and Ultralinear modes, and benefit from the proprietary auto-bias circuit for optimal tube performance. Its advanced four-layer circuit board ensures a remarkably quiet background, making every listening session truly immersive.
$12999.95
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Owner Satisfaction
4.7
/ 5
Category Rank
435
/ 2552
#435 in Power Amplifiers
Price vs Category Average
+57%
Above average
Power Output
1402020
/ watts continuous from Hz to kHz
Who it's for
- Sonic Versatility via Switchable Modes
- Advanced Tube Management System
- Exceptional Build and Aesthetic Design
Who should skip it
- Premium Price Point
- Significant Heat Generation
- Ongoing Tube Replacement Costs
Key Specs
Power Output
140 watts continuous from 20Hz to 20kHz
Frequency Response
0.5Hz to 110kHz (-3dB points at 1 watt)
Input Impedance
300k ohms Balanced; 100k ohms Single-ended
Output Taps
4, 8, 16 ohms
Tube Complement
8 x KT150 output tubes, 4 x 6H30 tubes
Power Requirements
105-130VAC 60Hz
Dimensions
19.0” W x 10.25” H x 21.5” D (24” D with handles and connectors)
Weight
100 lbs
Features
- Dual GhostMeters™ for striking visual appeal
- Switchable Triode and Ultralinear modes for sonic flexibility
- Proprietary auto-bias circuit ensures optimal tube performance
- Balanced and single-ended inputs for versatile connectivity
- Four-layer circuit board for a quiet background
- High-fidelity sound reproduction with exceptional clarity
- Robust build quality for lasting performance
- Remote turn-on/off capability for convenience
What customers say
Customers overwhelmingly praise the Audio Research Reference 160S for its breathtaking sound quality. Reviewers consistently note its transparent, dynamic soundstage, delivering musical details with natural warmth and engaging musicality. The amplifier provides effortless power, driving various speakers with authority while maintaining delicate control. Beyond sonics, the build quality earns universal acclaim; users admire its robust construction and elegant design, viewing it as a durable work of art. While expensive, owners feel the performance justifies the investment within the ultra high-end segment. This component profoundly elevates the listening experience for satisfied users.
Know before you buy
Ultralinear mode provides higher power and a more dynamic, punchy sound, while Triode mode offers a warmer, more intimate presentation. You can switch between these modes on the fly to best suit your specific music or listening preferences.
No, the amplifier features a proprietary auto-bias circuit that constantly monitors and adjusts the tubes for optimal performance. This eliminates the need for manual maintenance and ensures the tubes operate within their ideal parameters at all times.
Yes, the REF160S is designed to accommodate a wide range of speakers. It features dedicated output taps for 4, 8, and 16-ohm loads, allowing you to optimize the power delivery to match your speakers' requirements.
The cooling system is designed for quiet operation, utilizing efficient horizontal airflow to keep the tubes at a stable temperature. While there is a slight mechanical hum, it is generally imperceptible during normal listening levels.
The amplifier is highly versatile, offering both balanced (XLR) and single-ended (RCA) inputs. For the best performance and lowest noise floor, we recommend using a high-quality balanced preamplifier to take full advantage of the amplifier's balanced circuit design.
Due to its significant weight and dimensions, you will need a sturdy, well-ventilated equipment rack or stand capable of supporting at least 100 pounds. Ensure there is sufficient clearance above and around the unit to allow for proper heat dissipation.
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