STATUS - SOLD
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Description :
The Quad 33 preamplifier is a classic example of British hi-fi at it's very best. First launched in 1967 to partner the Quad 303 Power Amplifier, the Quad 33 preamplifier is a very high quality well designed pre amp using high quality push switches to select the input source which then passed through tone filters and a volume control before the sound is outputted to the power amplifier. In contrast to many modern hifi components, the Quad 33 has a useful range of tone controls. Not only treble and bass boost and cut but also high frequency filters controllable for frequency and slope which are intended to improve the sound of low quality sources. As for the sound, a mint Quad 33 & 303 combination will upset audiophiles who refuse to believe than vintage solid-state gear can produce satisfactory sounds. Clean, sweet, devoid of the nastiness of most early tranny amps - it stood out amongst its contemporaries as a harbinger of doom for the commercial dominance of the valve.
Specifications :
Distortion...................................................0.02% at all controls level, 0.5V rms output, with any input (30-10kHz)
...................................................0.1% at any control settings and any level within overload ratings (30-10kHz)
Residual Noise...........................................0-30 phon weighting ls'7kHz bandwidth controls level or cancel (-90db)
Frequency Response..................................Any input, any output RIAA or flat as appropriate (+/-0.5dB @ 30-20kHz)
Tone Controls.............................................+/- ldB of published curves
Filters........................................................To pubtished curves @ 5ktlz,7kHz, l0kHlz +/-5%
Inter Channel Balance.................................Within 1dB with volume control varied from maximum to -45db
Balance Control Range................................9dB either way
Crosstalk...................................................Dependant on input source impedances.
...................................................Replay / record typically better than 70dB 30-10,000 Hz
...................................................Interchannel typically better than 40dB 30-10,000 Hz
Inputs
Radio(Recommended Source Impedance).....20K Ohms or Less
(Load Impedance)...............................100K ohms
(Input Level for Main Output).................100mV
(Max Input).........................................2V
(Signal to Noise).................................85dB
Tape(Recommended Source Impedance)......High-Any............Mid-Any.............Low-Any
(Load Impedance)................................High-40K ohms...Mid-40K ohms....Low-40K ohms
(Input Level for Main Output)..................High-1V.............Mid-400mV.........Low-100mV
(Max Input)..........................................High-10V............Mid-4V...............Low-1V
(Signal to Noise)..................................High-85dB..........Mid-85dB............Low-85dB
Disc.....Low Output Magnetic 0.5-2,V/Cm/Sec.....High Output Magnetic 1.5-6mV/Cm/Sec.....Ceramic 450-800pF 2l80mv/cm/Sec
.....68K ohms.............................................68K ohms................................................68K ohms
.....2mV@1kHz..........................................5.6mV@1kHz..........................................100mV@1kHz
.....40mV@1kHz........................................120mV@1kHz..........................................1.2V@1kHz
.....70dB....................................................80dB
Ouputs
To Power Amp(Level)...................................0.5V
(Source Impedance)...............100K ohms
(Rec.Load Impedance)............10K ohms or over
(Max Cale Lengths)................100 feet
To Tape Recorder(Level)...............................High-100mV......................Mid-20mV............Low-3.7mV
(Source Impedance)...........High-5K ohms...................Mid-800 ohms......Low-180 ohms
(Rec.Load Impedance)........High-25K ohms or over......Mid-Any...............Low-Any
(Max Cale Lengths)............High-150 feet....................Mid-Any...............Low-Any
Dimensions(w x d x h)..................................26 x 17.5 x 9.5 cm
Weight........................................................3 kg
Miscellaneous :
Matching.....................................................Quad 303 Power Amplifier
Made in.......................................................UK
Condition.....................................................9/10 (Good condition)
Reviews
:http://www.hi-fi-insight.com/quad-33-pre-amplifier.html
http://www.richardbrice.net/quad33&303.htm
http://www.vads.ahds.ac.uk/diad/bres/pub/COID/246/58.jpg
http://hometheaterreview.com/quad-33-preamp-and-303-amp-reviewed/ |
