Audio Research
Audio Research Reference 160S
Best high fidelity sound for discerning audiophiles seeking ultimate musicality.
Experience unparalleled sonic fidelity with the Audio Research Reference 160S stereo power amplifier. Building on the acclaimed REF160M, this amplifier delivers exceptional resolution, dynamic impact, and musical purity. Its striking design features dual GhostMeters™ and houses eight KT150 output tubes. Enjoy versatile operation with switchable Triode or Ultralinear modes, proprietary auto-bias, and both balanced and single-ended inputs. The advanced four-layer circuit board ensures a remarkably quiet background, allowing the 140 watts of continuous power to shine through with pristine clarity and finesse.
$28000.00
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Owner Satisfaction
4.8
/ 5
Category Rank
38
/ 2552
#38 in Power Amplifiers
Price vs Category Average
+239%
Above average
Power Output
1402020
/ watts continuous from Hz to kHz
Who it's for
- Audiophiles seeking ultimate musical immersion and lifelike sound reproduction
- Discerning listeners who appreciate fine-tuning their audio experience
- Enthusiasts valuing top-tier build quality and sophisticated design
Who should skip it
- Budget-conscious buyers or those new to high-end audio
- Owners preferring maintenance-free audio components
- Listeners with limited space or those sensitive to heat output
Performance breakdown
Sonic Resolution
Delivers breathtaking clarity that reveals the finest textures in every recording.
Dynamic Impact
Effortlessly handles massive orchestral swells with authority and punchy transient response.
Tube Maintenance
Proprietary auto-bias circuitry removes the typical headache of manual tube management.
Build Integrity
A heavy-duty, four-layer circuit design ensures long-term stability and silent operation.
Operational Versatility
Switchable modes allow you to tailor the sound signature to your preference.
Visual Aesthetic
The iconic GhostMeters provide a stunning, modern centerpiece for any high-end system.
Key Specs
Power Output
140 watts continuous from 20Hz to 20kHz
1kHz Total Harmonic Distortion
typically 1% at 140 watts, below 0.04% at 1 watt
Frequency Response
-3dB points at 1 watt 0.5Hz to 110kHz
Input Sensitivity
2.4V RMS Balanced for rated output
Input Impedance
300k ohms Balanced; 100k ohms Single-ended
Output Taps
4, 8, 16 ohms
Amplifier Class
Triode, Ultralinear
Speaker Impedance
4, 8, 16 ohms
Features
- Dual GhostMeters™ for stunning visual display
- Switchable Triode or Ultralinear modes
- Proprietary auto-bias circuit for tube management
- Balanced and single-ended inputs
- Output tube monitoring mode
- Four-layer circuit board for low noise
What customers say
Customers consistently laud the Audio Research Reference 160S for its extraordinary sound quality and sophisticated design. Enthusiasts frequently highlight its ability to deliver a rich, detailed, and expansive soundstage, bringing recordings to life with remarkable clarity and musicality. The amplifier's elegant aesthetic, particularly the visible tube layout, receives widespread admiration, blending classic tube warmth with modern appeal. While a significant investment, owners often express profound satisfaction, viewing it as a pinnacle of audio engineering that offers immense sonic rewards for discerning listeners.
Know before you buy
Ultralinear mode provides the full 140 watts of power with greater punch and dynamic authority, while Triode mode offers a more intimate, refined sound signature at a lower power output. You can easily switch between these modes to match your specific speakers or listening preferences.
No, the Reference 160S features a proprietary auto-bias circuit that continuously monitors and adjusts the tubes for you. This ensures optimal performance and longevity without the need for manual calibration.
The advanced four-layer circuit board layout is designed to significantly reduce electrical noise and interference. This results in a much quieter background, which allows for greater detail, clarity, and micro-dynamics in your music.
Yes, the amplifier is equipped with both balanced (XLR) and single-ended (RCA) inputs, providing flexibility for various system configurations. You can select the input type that best suits your existing preamplifier.
The Reference 160S includes dedicated output taps for 4, 8, and 16-ohm speakers. It is important to connect your speakers to the tap that most closely matches their nominal impedance to ensure the best power transfer and sonic performance.
This is a substantial amplifier weighing 100 lbs and measuring 19 inches wide by 21.5 inches deep. Because of its size and the heat generated by the vacuum tubes, ensure your rack or stand is sturdy and provides ample ventilation space above and around the unit.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$28000