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For sale: Classic Cyrus One stereo integrated amplifier, known for its compact design and minimalist British hi-fi styling.
This example has received a maintenance service focused on cleaning the unit and its controls. The interior, potentiometers and selector switches have been cleaned, helping remove dirt and oxidation commonly found in vintage amplifiers of this age.
A sought-after early Cyrus amplifier suitable for a compact vintage hi-fi setup.
''Please ask us for a shipping quote for the best shipping rates. Shown costs might be incorrect, or we can offer better services''
Cosmetic condition:
Really good condition
Serviced as described below
No major component replacements or recap performed unless otherwise stated
Please check the photos carefully for the exact cosmetic condition
Specs:
Type
Stereo integrated amplifier
Power output
2 × 25 W into 8 Ω; 2 × 40 W into 4 Ω
Frequency response — line
1 Hz–50 kHz (−3 dB)
Frequency response — phono
20 Hz–20 kHz (RIAA accuracy ±0.2 dB)
Total harmonic distortion
0.003% into 8 Ω; 0.004% into 4 Ω (1 kHz, full power)
Total harmonic distortion at 20 kHz
0.015% into 8 Ω; 0.025% into 4 Ω (full power)
Signal-to-noise ratio
Line: 86 dB; MM: 84 dB; MC: 67 dB (A-weighted, referenced to 1 W output)
Input sensitivity
Line: 65 mV; MM: 0.40 mV; MC: 0.04 mV (for 1 W output)
Input impedance — line
14 kΩ
Input impedance — phono
47 kΩ / 100 pF (MM and MC)
Phono overload margin
31 dB (MM and MC)
Damping factor
100 (20 Hz–20 kHz)
Dynamic headroom
1.4 dB
Amplifier output impedance
0.08 Ω
Maximum tape output
11 V RMS
Inputs
Phono, CD, tuner, video and tape
Phono cartridge compatibility
Moving magnet and moving coil, switchable
Outputs
Tape recording output; stereo speaker outputs
Speaker connections
4 mm banana sockets
Controls
Volume, balance, separate listening and recording selectors, mute and power
Power connection
IEC mains inlet with integrated fuse
Dimensions (LxWxH): 22x37x10cmWeight: 8 KgVolts: 220v (If it’s 200V or higher, you’ll need an adapter in the USA)
We ship worldwide.For international shipping, import fee's apply. These vary per country, and are for the buyer to pay.-Shipping in the EU up to 30 KG (max)-Shipping outside of the EU up to 20 KG (max) Shown costs might vary. Please ask us for a shipping quote for the best rates!-We kindly ask you to reach out for the best shiping rates. As rates vary per shipper, we can ask custom shipping quotes.
Please note: ‘’Whenever an item exceeds the weight noted above. Please ask for a shipping quote before making a purchase. The shipping costs are estimated in our shop because we do not know the shipping address.
Picking up the item is also possible. It can be picked up in Alkmaar
Delivery by us is also possible in some cases. Please reach out to us for more information about deliveries State of listing: If a listing is listed ''for parts or not working'' returns are not accepted.
When we offer our products with the notice ''Serviced'' or ''Fully serviced'' that means the device is either ''serviced'' with a new belt, and cleaned the pots, Or ''Fully serviced'' recapped, Quiescent current adjusted etc as expected from a full service
US$530 sits just above the median used price of US$441 and below the 75th percentile of US$535, so this reads as a fair-to-slightly-strong ask rather than a bargain. It’s close enough to the top of the normal range that I’d want confidence in condition and included extras before calling it a clean buy.
The Cyrus ONE is well liked for its compact footprint, lively sound, and genuinely useful all-in-one design, making it an easy fit for a serious desktop or secondary system. If the unit is clean, fully functional, and comes with the original remote and power supply, the value is solid; if not, there’s a bit less room to pay at the upper end.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Cyrus Audio: Heritage and Philosophy
Cyrus Audio emerged in 1984 as a specialist electronics brand spun off from loudspeaker manufacturer Mission, with the goal of creating amplifiers to complement Mission speakers. Founded under the direction of Peter Bartlett, a veteran from NAD, the company established its identity with the Cyrus One integrated amplifier—a half-width design featuring the distinctive "control lip" that remains iconic in audiophile circles today. The brand quickly positioned itself as a pioneer in compact, high-performance audio, and later became one of the first manufacturers to champion the Compact Disc format through its partnership with Philips in the early 1980s. After separating from Mission in the 1990s, Bartlett returned Cyrus to private ownership, where it remains independently operated from its Cambridgeshire headquarters.
Cyrus has maintained unwavering focus as a two-channel hi-fi specialist, eschewing multiroom or surround formats. The company's product portfolio centers on integrated amplifiers, power amplifiers, CD players, digital-to-analog converters, and power supplies—all engineered around the principle of delivering high-end sound quality in compact form factors. The brand also pioneered networked audio, developing early high-performance music servers that demonstrated premium sound could be achieved in convenient, integrated packages.
Today, Cyrus occupies a distinctive position as a boutique, high-end British manufacturer that prioritizes sonic excellence and longevity over market size. Under current CEO Nick Clarke, the company continues evolving its Classic series—refined continuously since 1983—and the XR series, developed from scratch using cutting-edge DAC technology and UK manufacturing. Cyrus products consistently earn critical acclaim and industry awards, appealing to discerning audiophiles who value British engineering, meticulous design, and uncompromising sound quality over mass-market accessibility.
See all Cyrus listings on RADAR.
