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. This is done using a precise formula (RIAA). 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!



Esoteric Sound Surface Noise Reducer

Esoteric Sound Surface Noise Reducer

$715.00 ESSNR

ICON AUDIO MC TX transformer

ICON AUDIO MC TX transformer

$800.00 MCTX

ICON AUDIO PS1 MkII phono preamplifer MM/MC

ICON AUDIO PS1 MkII phono preamplifer MM/MC

Jensen capacitors and premium valves. SAVE $330.

$2,670.00 PS12MC

11% OFF RRP $3,000.00
MYGROOV phono stage (white)

MYGROOV phono stage (white)

SAVE $119. Just 6 units left at this price!

$250.00 MYGROOV

32% OFF RRP $369.00
PRO-JECT PhonoBox

PRO-JECT PhonoBox

From $199.00 PJPB

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REK-O-KUT  Re-Equalizer MkII

REK-O-KUT Re-Equalizer MkII

$715.00 RKRE2

REK-O-KUT De-Hisser

REK-O-KUT De-Hisser

$550.00 RKDH

15% OFF RRP $650.00
ROTHWELL Rialto phono pre-amp

ROTHWELL Rialto phono pre-amp

$660.00 RWPPA

14% OFF RRP $770.00
ROTHWELL Simplex mm phonostage

ROTHWELL Simplex mm phonostage

simple, compact and affordable

$495.00 RWSPPA

VINCENT PHO-701 Tube Phono Preamplifier

VINCENT PHO-701 Tube Phono Preamplifier

Separate preamp and power supply units

$799.00 VPHO701

ADL GT-40 Alpha DAC ADC Phono Headphone Amp

ADL GT-40 Alpha DAC ADC Phono Headphone Amp

Very resourceful with excellent sound quality

$850.00 GT40a