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Graham Slee |
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Gram Amp 2 Communicator |
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A special front panel is included with every unit to adapt it to sub-rack
use and the nylon screws and spacers "ground-lift" the case to prevent
"hum-loops" without compromising the grounding of the circuit and the
excellent EMC shielding properties. Whether it's used professionally or
not, the front panel sets it off with an impressive professional appearance.
Higher-level dynamic performance and superior timing, timbre and detail resolution provide seamless tonal balance for a musical feast of shimmering highs, fluid midriffs and deepest bass.
For total immersion (in the music) an optional upgrade to the PSU1 power supply unit is available.
". The Gram Amp 2 was something else... Given the lack of the
IEC warp filter and other changes, I had expected it to sound a little
different. What I didn't expect was for it to soundstage like a four-figure
pre."
Geoff Husband - TNT-Audio
Feb 2001.
Technical Specification
| Nominal Input sensitivity | 3mV |
| Input range | 2 to 8mV |
| Input Impedance | 47k & 100pF |
| Maximum input | 38mV rms (ref 1kHz) |
| Gain | 38.5dB |
| output | 250mV |
| Maximum output | 3.15V rms |
| Output will drive | 1.6k Ohms |
| Output noise | CCIR* q-pk 20Hz-20kHz). -77dB |
| Distortion | < 0.03% |
| RIAA accuracy | 0.5dB |
| Bandwidth | 10Hz-150kHz |
| Reproduction curve | RIAA |
| Channel balance | 0.25dB |
| Channel separation | 64dB |
| Phono connectors | Gold Plated |
| Mains Voltage | UK 200-250V ac 50/60Hz |
| Size (approx.) | W120 x H71 x D71 (mm) |
| *A wtd. Noise is approximately 10dB better | |
The Gram Amp 2 Communicator phono preamp requires a burn in period of at least 7 days from new to achieve its best performance.
Replacement UK wall plug power supply units are available to order.