CH Precision
P1 Phono Stage
The CH Precision P1 is a Swiss-made, dual-monaural solid-state phono stage built around a fully discrete, Class A architecture, distinguished by its dedicated current-sensing (transimpedance) inputs for moving-coil cartridges alongside a conventional voltage-sensing MM/MC input (CH Precision official product page). It features a built-in "Loading Wizard" spectrum analyzer that uses a supplied test record with frequency sweeps to help identify optimal cartridge loading, and can be expanded with an outboard X1 power supply or paired as a true four-box dual-mono system (The Absolute Sound).
MSRP
$48,500
Used market · Good
$26,000
MSRP to used market
From $48,500 at launch to $26,000 today.
Specifications
- Price
- $31,500 US base unit; optional EQ card $1,850; optional X1 power supply $17,000
- Design
- Fully discrete, dual-monaural, Class A solid-state circuitry; no tube stages
- Inputs
- 2× MC current-sensing inputs (RCA + XLR each) plus 1× MM/MC voltage-sensing input (RCA + XLR), supporting up to 3 cartridges/arms connected simultaneously
- Weight
- 20 kg
- EQ curves
- Built-in RIAA and eRIAA (RIAA with Neumann time constant); optional plug-in card adds EMI, Columbia, Decca, and Teldec curves, accurate to ±0.1 dB
- Dimensions
- 440 × 133 × 440 mm (W × H × D), overall including connectors/feet
- Published price
- 48500 USD
- Loading MC current inputs
- Less than 100 mΩ, "virtual ground" design that eliminates the need to set load impedance
- Loading MM MC voltage input
- User-variable resistive load from 20 Ω to 100 kΩ in over 500 steps
- Gain MC current sensing inputs
- +44 dB to +69 dB in 5 dB steps (1 kHz, single-ended output, based on a 10 Ω cartridge); balanced output is 6 dB higher
- Gain MM MC voltage sensing input
- +35 dB to +70 dB in 5 dB steps
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