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Cyrus 3i

STATUS - SOLD
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 Description :
The Cyrus IIIi is a conservatively rated 50W per channel integrated amplifier designed to become the core of a quality audio system. Following in footsteps of the well respected Cyrus I & II, the Cyrus IIIi is an 'improved' Cyrus III which has moved on to address the life style requirements of the 90s as well as having the ability for expansion into a fully integrated audio-visual system.
Cyrus IIIi features high grade SMD components throughout which assist in topology optimisation resulting in shorter signal paths. This is highly desirable in a quality audio amplifier in helping reduce a multitude of complex distortions and adverse interaction with the environment.

A sophisticated 180VA toroidal power transformer forms the essential part of the Cyrus IIIi advanced linear Power supply system. The “zero-mechanical-noise” core design of this transformer ensures high performance within an unusually wide AC mains voltage. The patented slit-foil reservoir capacitors dispel circulating eddy currents in the foil reducing the ESR as well as substantially increasing the effective power supply bandwidth as seen by the amplifiers.

The MM Phono input stage is in the form of a versatile & unique reversible plug-in module which is easily converted to an additional line level input making a total of 6, excluding tape. Cyrus IIIi has a unique calibration memory that can be programmed to memorise a volume offset for all inputs, with reference to the CD input. This ensures that the volume level is maintained when switching between different inputs.

Specifications :
Continuous Power.............................50 Watts per channel (both driven into 8 Ohms)
                          .............................70 Watts per channel (both driven into 4 Ohms)
With PSX-R......................................57 Watts per channel (both driven into 8 Ohms)
                 ......................................90 Watts per channel (both driven into 4 Ohms)
Current............................................30 Amps peak to peak
Distortion.........................................0.005%, 1kHz (into 8 Ohms) 
             ..........................................0.007%, 1kHz (into 4 Ohms)
Frequency Response........................-3 dB, 4.5Hz and 80kHz
Damping Factor...............................100
Slew rate.........................................700V/mS (input filter bypassed)
Sensitivity (50W)..............................MM: 2.75mV
                        ...............................Line: 200mV
Input impedance...............................50kOhm (RCA), 47kOhm (PH)
Output voltage..................................200mV (Tape out), 380mV (Pre out)
S/N Ratio.........................................MM: 83dBA (ref. 5mV)
              .........................................Line: 107dBA (ref. 500mV)
Channel Balance..............................±0.2dB (0dB to -63dB)
Volume control accuracy...................±0.1dB (0dB to -63dB)
Dimensions(w x d x h).......................21.5 x 37 x 7.5cm
Weight.............................................5 kg
Finish..............................................Black

Miscellaneous :
Made in...........................................England, UK
Remote...........................................Yes
Condition.........................................8 / 10 (A scatch on top surface)

Product information :
http://www.cyrusaudio.com/product.asp?ProductID=61&text=overview
http://www.cyrusaudio.com/product.asp?ProductID=61&text=spec (Product Specification)
http://www.cyrusaudio.com/prd_downloads/Cyrus3iHandbook.pdf (Online manual)

Reviews :
http://www.audioreview.com/cat/amplification/amplifiers/cyrus/iii/PRD_115745_1583crx.aspx

 

 
 
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