Description 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 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. 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 |
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