Cyrus 8VS2

Manufactured between 2006 and 2009

In 2006 the Integrated 8vs2 delivered the most power yet from our chassis. Despite the power amplifier delivering a true 70W+70W RMS power into 8 ohms, no compromises had been made elsewhere in the amplifier. True to the Cyrus tradition, the chassis also houses a traditionally designed power supply featuring an oversize 330VA power transformer and extra-large electrolytic reservoir capacitors. Dual charge pumps and linear post-regulators increase the voltage and stabilise the power supply available for the voltage amplifier stage.

This eliminated any trace of power supply ripple and noise, with no sag under load. The extra headroom that this provides, swings the current amplifier further towards its rails, giving a full 70W 8 Ohm performance. With the PSX-R applied to the preamp – the 8vs2 featured an unusual strategy for PSX-R upgradeability, with the ultra-smooth, battery-like DC power of the PSX-R applied directly and only to the pre-amplifier stage through a solid-state switch.

The internal power supply is then reserved entirely for the power amplifier. The total separation of power sources moves the system topology much closer to a separate two box, pre-power combination, when used with a PSX-R.  A secondary benefit of this arrangement is Plug ’n’ Play PSX-R connection, with no requirement for internal modification when a PSX-R upgrade is added to the system.

Technical Information

Electrical Line inputs 6 Line + 1 Tape
Outputs Bi-wire Loudspeakers, Tape-out, Preamp-out, Headphone
Power Supply 330VA Toroidal transformer with 5 regulated rails
External Highly regulated PSX-R upgradeable
Communications MC-BUS System BUS Remote Control
Supplied with Cyrus Amp/CD/Tuner system remote control


Continuous Power – 70W/CH (both driven into 8 Ohms) 110W/CH (both driven into 4 Ohms)
Burst Power – 340W (IHF, one channel driven into 1 Ohm)
Distortion – 0.003%, 1kHz (into 8 Ohms) 0.005%, 1kHz (into 4 Ohms)
Frequency Response – -3 dB, 0.2Hz and 85kHz
Damping Factor – (1kHz) 150Sensitivity – (50W)
Line: 200mV

Input impedance – 50kOhm (RCA).
Output voltage – 200mV (Tape out), 380mV (Pre out)
S/N Ratio – 101dBA (ref. 50W)
Channel Balance – ±0.2dB (0dB to -63dB)
Volume control accuracy – ±0.1dB (0dB to -63dB)
Dimensions – (H x W x D) 73 x 215 x 360 (mm)
Weight – 5.5kg
Finish – Quartz Silver or Brushed Black