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Size Guide
Understanding Gracelothing Sizing
Description
xHeed Audio's Thesis φ (phi) is a no-compromise phono preamplifier for all vinyl connoisseurs using a top-class turntable. Noise characteristics, dynamic range, headroom and frequency response of the Thesis φ are second to none. This preamp is also fed by the Thesis π twin PSU. By using two independent – MM (moving magnet) and MC (moving coil) – amplifier circuits, it is possible to use two record players connected simultaneously. Cartridge matching is highly customisable for gain and impedance on the rear panel of the unit by jumpers.
Phi Specifications:
| Inputs: | 1x MM / 1x MC |
| Outputs: | 1x MM 50 Ω / 1x MM 600 Ω / 1x MC 50 Ω / 1x MC 600 Ω |
| Gain (MC): | 44 / 50 / 56 / 62 / 68 / 74 dB |
| Gain (MM): | 33 / 48 dB |
| Input impedance (MC): | 100 / 220 / 470 / 1000 Ω |
| Input impedance (MM): | 47 kΩ / 150 pF |
| Noise floor: | -90 dBV (MC) / -84 dBV (MM) |
| Power supply options: | Thesis Pi |
| Dimensions (W x H x D): | 9.5 x 7.5 x 22 cm |
Pi Specifications:
| Type: | 2-stage regulated power supply |
| Supported devices: | Thesis Alpha / Thesis Phi / Quasar |
| Dimensions (WxHxD): | 22 x 8.5 x 32.5 cm |
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