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 The
Gram Amp 1 started life as "The Basic" as reviewed in
the Gramophone magazine, 2001. As GSP Audio's first mass market
phono stage, it was responsible for putting GSP Audio on the map.
The MkII was a stunner, offering increased performance and better
value for money, know finally the Gram Amp 1 Bridge has received
a metal case and another sonic work over. Meeting the latest RoHS
regulatory standards, the new "Bridge" is a little gem.
The all new Gram Amp 1 of 2003 keeps its 5 star
winning performance which has made it the best in its class.
What Hi-Fi? Sound & Vision - 5 STAR
WINNER, April 2001 & Ultimate Guide 2002
"...the only one of this quartet to communicate
the space around the performers convincingly... the Gram Amp 1
offers even better sound quality and is where our money would
go" Against the Project Phono Box, NAD
PP-1 and Lektropacks BT926
What Hi-Fi? Sound & Vision
5 STAR WINNER - April 2001 & Ultimate Guide 2002
Times and seasons change, markets diminish and regenerate; turntables
are back. Why do the "high end" products always get
the limelight? The new Gram Amp 1 with stylish livery and LED
detail changes all of this, more importantly the tweaked internals,
enhanced quality capacitors and further reduced noise floor make
the new Gram Amp 1 really rock.
A fourth generation product, the Gram Amp 1 Bridge builds on
the strengths of its forebears, and addresses its earlier weaknesses.
Look at the reviews however, and you will see there weren't many
weaknesses identifiable for its price, this is a remarkable phono
pre amp and is well worth a listen.
For total immersion (in the music) an optional upgrade to the
PSU1 power supply unit is available.
UK Retail: £99.99
Export Retail: £85.10 
We cannot supply these to the USA or Canada
Technical Specification
Nominal Input sensitivity: 3 mV rms
Maximum input: 63 mV rms
Nominal output: 250 mV rms
Maximum output: 5.3 V rms
Gain: 38.5 dB (83)
Input resistance: 47 kOhms
Input capacitance: 100 pF
Output will drive: 10k Ohms
Noise: -78 dB CCIR q-pk 20Hz - 20kHz
Distortion: 0.02%
RIAA accuracy: 0.5 dB
Frequency response: 12.5Hz - 150kHz
Channel balance: 0.2 dB
Channel separation: 64 dB
Size: 100 (w) x 48 (h) x 76 (d) mm
The Gram Amp 1 phono pre amplifier requires a burn in period
of at least 2 days from new to achieve its best performance.
Replacement UK wall plug power supply units are available to
order.
Guarantee: This product is covered by a two year return to base
manufacturers guarantee.
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