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Phono Preamplifiers



GSP Jazz Club (incl. PSU1 power supply)

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GSP Jazz Club (incl. PSU1 power supply)

Phono Preamp For 78's, Pre & Post RIAA Vinyl Records

The Jazz Club phono-stage preamp provides the correct EQ for virtually every gramophone record ever made.

It has 7 equalisation networks which combine using three 3-way front panel switches to equalize 15 different recording curves - 12 of them equalize known record label recording curves including the modern-day RIAA - 3 are for experimentation.

For the response curve charts and information about re-mastering 78's, copying old records to CD and noise reduction click here.

Era Gold V Phono Stage Preamp Performance

The Jazz Club phono stage preamp is based on our highly successful Era Gold V phono stage preamp - a phono stage preamp which has been highly praised all over the world for its "miraculous" performance.

The Era Gold V is one of the very few phono stages to have made it to the fourth year in Stereophile magazine's recommended system components guide. Not only has it made the fourth year, but it has been listed a "class A" component each year receiving the much coveted triple dollar value-for-money sign.

The  Jazz Club phono stage has also featured as a Stereophile recommended system component in its own right and has also been the subject of a number of "rave" reviews including reviews published in Hi-Fi News and Gramophone magazine.

Re-mastering 78's and Vinyl to CD

It is trusted by re-mastering services large and small to take the hard work out of re-mastering 78's and pre RIAA vinyl records - giving far better results than their previously used conventional and complicated equipment line-up.

It is also owned by many private enthusiasts who find it invaluable in archiving records of all era's and genres onto CD with minimal fuss.

The wideband phono stage preamp technology it uses is unique to Graham Slee, and it not only makes old records sound more realistic with its openness and "airy" transparency, it often removes the need to de click because our wideband technology doesn't emphasize record damage noise like most phono stages do.

Design Features

The Jazz Club makes use of selected components from branded specialist high-quality audio component manufacturers. These are not "boutique" or "designer" components but components selected on real technical merit, and the difference they make, on listening, is obvious.

Like all our wideband designs, best performance is obtained by the unit being powered continuously, and a period of "burn-in" (approximately 3 weeks) should be observed for its components to fully form and stabilize. To ensure proper continuous correct operation, the Jazz Club phono stage is supplied with our IEC approved PSU1 in-line power supply unit. Voltages and cord-sets are country specific and are included with the PSU1

The cartridge sensitivity and gain is fixed for Moving Magnet or High Output Moving Coil pick-up cartridges and the input impedance is 47k Ohms. For use with low output Moving Coil pick-ups, the Elevator EXP head amplifier should be used ahead of the Jazz Club. These stages are designed to work together to give an unsurpassed moving coil performance for their price-bands and far beyond.

A mono switch is included on the rear panel to conveniently use a stereo pick-up for mono work. For exacting mono work a mono pick-up should be used in stereo mode and the unused input shorted. It is not advisable to convert stereo recordings to mono using a mono switch as the summing function puts emphasis on centre channel signals.

Jazz Club Phono Stage Preamp Reviews

   TNT Audio Magazine online review featuring the Jazz Club

   Michael Fremer, Analog Corner, Stereophile, June 2002 "I couldn't believe the presence of Ella's voice, or the lack of noise from the old shellac...Mikey loved it..."

   Caroline Osborn, Gramophone, March 2003 "LPs via the Jazz Club were the clear winner... This is a fine phono stage indeed..."

All excerpts reproduced with permission

Jazz Club Phono Stage Preamp Recommendations

Recommended system component
Stereophile - October 2002

Recommended system component
Stereophile - April 2003

Specification

Nominal Input sensitivity: 4 mV rms
Maximum input: 45 mV rms
Nominal output: 472 mV rms
Maximum output: 5.3 V rms
Gain: 41.5 dB (118)
Input resistance: 47 kOhms
Input capacitance: 100 pF
Output will drive: 600 Ohms
Noise: -68 dB CCIR q-pk 20Hz - 20kHz
Distortion: 0.02%
RIAA accuracy: 0.5 dB
Frequency response: 5Hz - 150kHz
Channel balance: 0.2 dB
Channel separation: 64 dB
Case Size: 107 x 165 x 45 mm ex. connectors, controls and feet
Weight: 0.7 kg approx. (PSU1: 0.7 kg approx.)

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