Phono Preamplifiers

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Phono Preamplifiers

Most modern amplifiers do not have provision for a phono cartridge, so a separate phono preamplifier is necessary. And the phono preamps included in many older integrated amplifiers are fairly basic. You can achieve a worthwhile improvement in sound quality with a separate phono preamp.

When you consider that the signal that the phono cartridge extracts from the groove has to be amplified many thousands of times before it gets to the speakers any improvement in the signal at the front end will be magnified greatly.

Why do you need a phono preamplifier? (answer courtesy of Graham Slee)
Bass takes space. Vinyl is a mechanical medium. The groove contains the wavelength and velocity information for all the musical frequencies contained in it. The signal's wavelength is inversely proportional to frequency. Using the equation:- wavelength (?) = velocity (V) / frequency (f)

We find a bass frequency of 50Hz has a wavelength ( groove wiggle) of 0.1cm (1mm) at the peak recorded velocity of a vinyl LP (5cm/sec). With 50:50 spacing, you'd only get 40 revolutions, and at 33? RPM that's just 1 minute and 12 seconds!

At 1kHz (middle of the band) the wiggle is 0.05mm - enough for 24 minutes, but at 10kHz, the wiggle is so small it would be swamped by the noise of the vinyl's polymorphic structure.

The cure is to turn the bass down and the treble up while cutting the record master. So when you play a record you need a clever bit of electronics to change it back. That's the job of the Phono Stage.

The more accurate in frequency and phase performance the phono stage is - the better the sound. Not forgetting that the phono stage must not add to the background noise already on the record.

The best phono stages are: Fast (wide bandwidth); Quiet (low noise) and distortion should be inaudible. And that is not an easy task!

	NAD PP3 phono preamp (USB) Product Code: PP3 The new version of the acclaimed PP2 phono preamp includes a USB output for direct connection to a computer. A USB cable and VinylStudio Lite software are included.		Price:	QTY:

	GSP Gram Amp 2 Communicator Product Code: GA2C The Communicator's gain is optimised for high output cartridges making it ideal for public performance as well as for use with a domestic integrated amplifier, active preamp or computer sound card. It can handle the high levels of "Hot Pressings" from DJ cartridges without clipping. Chassis styling makes it suitable for incorporation into plinths and broadcast desks.		Price:	QTY:

	GSP Gram Amp 2 Special Edition (SMPS) Product Code: GA2SE A phono preamp stage with RIAA equalisation for all stereo vinyl records. This phono preamplifier is suitable for use with all high quality moving magnet and high output moving coil phono cartridges.		Price:	QTY:

	GSP Gram Amp 3 Fanfare (SMPS) Product Code: GA3F DEDICATED MOVING COIL RIAA PHONO STAGE The Fanfare from the common man! After all, it's not everybody who can afford high-end audio, and often it just isn't worth the sacrifice. With so many good affordable moving coil cartridges available, there should be an excellent phono stage to partner them. And here it is for just $550! As ever, we've optimised the design so you don't have to struggle blindly with confusing settings - another one that does exactly what it promises.		Price:	QTY:

	Era Gold V Intro Product Code: EGVI Graham Slee Era Gold V Intro is the same unit as the EGV but supplied with the same plug pack as the Gram Amps instead of the PSU1 power supply.		Price:	QTY:

	Era Gold V (incl. PSU1 power supply) Product Code: EGV Era Gold V Dedicated moving magnet/moving iron phono cartridge preamplifier stage, featuring high speed - four pole active RIAA equalisation. Precision engineered in England by Graham Slee Projects HIGH RESOLUTION PHONO STAGES FOR HIGH OUTPUT CARTRIDGES		Price:	QTY:

	GSP Era Gold Reflex (incl. PSU1 power supply) Product Code: EGR The latest of our really wide bandwidth dedicated RIAA designs, the REFLEX takes you a step further into the illusion of reality. The design brief: To let the musicians and vocalists communicate their message in the context they intended - That means the electronics must never colour the tiniest of detail, or else ambiguity could creep in. But is vinyl capable of such resolution? We believe so, and that's why we've invested heavily in the development of the REFLEX.		Price:	QTY:
			MM or MC

	GSP Jazz Club (incl. PSU1 power supply) Product Code: JC 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.		Price:	QTY:

	Jazz Club Revelation (incl. PSU1 power supply) Product Code: JCR Phono Stage For 78's, Pre & Post RIAA Vinyl Records The Revelation 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.		Price:	QTY:

GSP Elevator EXP (incl. PSU1 power supply)

Product Code: ELEV

Step-Up Transformer-Less Head Amplifier for Moving Coil

The Elevator EXP step-up transformer-less head amplifier lets you step-up low output moving coil cartridges to moving magnet phono stage input level without the hum of a transformer. Ideal for use with valve phono stages and the Era Gold

Price:

	Special price for Reflex + Elevator (incl. 2 x PSU1) Product Code: EGREX		Price:	QTY:

	GSP Power supply Product Code: PSU1 The PSU1 is supplied with the Era Gold, Jazz Club, Solo, Elevator Plus & EXP, and, as What Hi-Fi and TNT-Audio found, can upgrade the performance of our Gram Amp 2 and Gram Amp 2 Special Edition phono stages.		Price:	QTY:

	ORIGIN LIVE Ultra Phono Stage Product Code: OLPS Origin Live Ultra fully balanced phono stage		Price:	QTY:

	LINN Linto moving coil phono pre-amplifier Product Code: LINTO Direct Coupled Precision Phono Preamplifier. The ultimate source component for those who have and cherish a vinyl record collection. Launched to mark and celebrate the Silver Anniversary of the Linn Sondek LP12 Transcription turntable. KEY FEATURES INCLUDE: DC-coupled reference MC phono preamplifier Two gain settings to suit most high and low output moving coil cartridges Ultra-short signal paths Super silent power supply Surface mount technology to minimize interference and noise pick-up LINN Linto Product Information		Price:	QTY:

	Pro-Ject Phono Box MkII Product Code: PJPB MM/MC Phono Pre-amplifier "Very competent little MM & MC stage at an astonishing price. First-rate starter package" Hi Fi News		Price:	Call

	Pro-Ject Phono Box MkII with USB Product Code: PJPBU MM/MC Phono Pre-amplifier NOW with USB output. "Very competent little MM & MC stage at an astonishing price. First-rate starter package" Hi Fi News		Price:	Call

	NAD PP2 phono preamp Product Code: PP2 The NAD PP2 phono preamp is one of the finest phono preamps on the market today. It's little price belies is big performance. This device is a simple add-on, outboard phono preamp that anyone who has an electronic product with a spare pair of line-level inputs can use for excellent vinyl performance. It features selectable Moving-Magnet (MM) or Moving-Coil (MC) input to handle all types of phono cartridges, an external 24V power supply and small size.		Price:	QTY:

	Esoteric Sound Surface Noise Reducer Product Code: ESSNR Esoteric Sound's - Surface Noise Reducer eliminates or reduces the clicks, crackle and pops found on most types of phonograph records. Its circuit can identify and remove many clicks and pops found on Lp's and even 78's and other vintage records. It will cause minimum degradation to either audiophile or vintage records and is suitable for inclusion into advanced audiophile systems where phonograph records are used. While use of a graphic equalizer or "scratch filter" to remove ticks and scratches is somewhat effective, such filters reduce or eliminate the highs found on records. The Esoteric Surface Noise Reducer acts only on the click or pop without effecting program material. The Surface Noise Reducer is also very effective in reducing ignition noise from FM radio broadcasts. Easily installed thru the external tape monitor circuit or your preamplifier/receiver For reviews go to http://www.esotericsound.com/home.htm#d_magazine%20reviews		Price:	QTY:

	Rek-O-Kut De-Hisser Product Code: RDH THREE NOISE REDUCTION SYSTEMS IN ONE for use with modern stereo LP records or vintage 78s The Rek-O-Kut De-Hisser is actually three products in one: a background hiss reducer, a left/right groove wall selector for mono records, and a low frequency noise filter (rumble filter). Easily installed thru the external tape monitor circuit or your preamplifier/receiver or via the *SuperConnector*. De-Hisser Brochure		Price:	QTY:

	Esoteric Sound Re-Equalizer Product Code: ESRE Pre-1955 records were recorded to different standard than now employed in RIAA equalized phono amplifiers. The Re-Equalizer compensates for this. Easily installed thru the external tape monitor circuit or your preamplifier/receiver or via the SuperConnector. For reviews go to http://www.esotericsound.com/home.htm#d_magazine%20reviews Re-Equalizer Manual Re-Equalizer Brochure		Price:	QTY:

	ME RIAA Phono Preamp Product Code: MEPP SOLD OUT NO STOCK TILL FURTHER NOTICE Phono Preamp Cascode Equalisation System A phono preamp for standard Hi Fi receivers and amplifiers Suitable for moving Magnet and high output Moving coils		Price:	QTY:

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

Step-Up Transformer-Less Head Amplifier for Moving Coil

Origin Live Ultra fully balanced phono stage