
Description
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Heed Audio's Quasar phono stage is award-winning, with its discrete conception and wide range of features, meets the requirements of even top-class turntable/cartridge combinations without being “unreasonable” in the usual high-end fashion. The signal processing of cartridges is one of the most delicate jobs in amplification. All the more so because it isn’t done merely by boosting a few hundred microvolts to a few hundred millivolts. In fact, at this thousandfold amplification (60 dB) the signal must be processed as cleanly and noise-free as possible. The extremely low signal level and the frequency-dependent amplification which arises from the RIAA equalisation curve applied in the cutting of LPs make the highest demands of the circuit topology and technical realisation of a phono preamplifier.
Specifications:
| Inputs: | 1x MM / 1x MC |
| Outputs: | 1x 0dBm (High Out)/ 1x -10 dBm (Low Out) |
| Frequency response: | 3 Hz – 150kHz |
| Input sensitivity (MC): | 100 / 330 / 600 µV |
| Input impedance (MC): | 100 / 470 / 1000 Ω |
| Input sensitivity (MM): | 2.5 mV |
| Input impedance (MM): | 47 kΩ |
| Gain: | 50 dB (MM) / 62 – 78 dB (MC) |
| RIAA accuracy: | +/- 0.5 dB (20 Hz – 20 kHz) |
| Power supply options: | Q-PSU (standard) / Obelisk PX / Thesis Pi |
| Dimensions (W x H x D): | 9.5 x 7.5 x 22 cm |