P1 Dual Monoaural Phono Stage

P1 Dual Monoaural Phono Stage

Meet the CH Precision P1, a phono-stage that takes the demands of vinyl replay seriously, offering an unmatched combination of musical performance and adjustability – versatility that ensures you hear every last expressive and emotional nuance teased from the vinyl groove.

Add to Wishlist
Add to Wishlist
SKU: CH-P1 Categories: , Tags: , ,

Description

Thirty years ago few people predicted that, not only would we still be listening to records in the 21st Century, we would still be pressing them too. For many listeners, the vinyl record is more than just a viable source – it’s the pre-eminent source of recorded music.

That reflects both the inherent qualities and character of analogue sound, but also the fact that record replay has significantly upped its game in the face of ever-increasing competition from high-res digital sources. These days, serious record collectors and listeners wanting the best possible sound will seek out rare original pressings, appreciate the virtues of mono (as opposed to many stereo) releases and purchase their discs, new and used, from all over the world.

Likewise, the once simple process of playing those discs can achieve levels of sophistication and record-by-record optimisation we never dreamed of, back when the vinyl LP was the only high-quality format.

Today’s record players and tonearms offer an unprecedented range of facilities and adjustability – all designed to extract the maximum possible performance from your cartridge and the record it’s playing. But if the magic in that fragile phono signal is to be preserved rather than eroded by the rest of your system, you will need a phono-stage that is just as versatile and adaptable, that can be fine tuned to the same exacting degree. Meet the CH Precision P1, a phono-stage that takes those demands seriously, offering an unmatched combination of musical performance and adjustability – versatility that ensures you hear every last expressive and emotional nuance teased from the vinyl groove.

With multiple, independently configurable inputs and with all-important parameters individually adjustable from the CH-Control App, the P1 can handle up to three, permanently connected turntables or tonearms. With a combination of both current and voltage-sensing inputs (along with a simple yet sophisticated set up protocol for the latter) the P1 maximises the musical performance of any moving-coil, moving-iron or moving-magnet cartridge, while the optional, switchable EQ facility means that collectors of early, original pressings can finally hear those discs in all their glory. Being part of the CH Precision, upgradeable/scalable Eco-system means that the P1s already remarkable performance can be further enhanced with the external X1 power supply, or even taken all the way to the full dual-chassis, four-box configuration.

Whether you want to play a Sgt Pepper’s mono pressing or a Decca SXL2000, the P1 will play it for you – and play it right. It’s never been so easy to collect great records. The P1 exists to let you hear what makes those records great.

Features

Modularity

Two P1 configurations are available:

  • Dual Monaural (two channels in a single enclosure)
  • True Monaural (each channel in its own enclosure)

Moving Coil Current Inputs

The P1 provides two moving coil current inputs, featuring the following specifications:

  • inputs specifically designed for low output, low internal resistance MC cartridges
  • current mode for best signal to noise ratio when paired with low output MC cartridges
  • no impedance adjustment required in current mode
  • XLR and RCA connector available on each input

Moving Magnet / Moving Coil Voltage Input

The P1 provides a more classical voltage input, featuring the following specifications:

  • input designed for MM, MC cartridges and step-up transformers
  • ultra low noise FET-input stage
  • cartridge loading adjustment, variable from 100k Ohms to 20 Ohms in over 500 steps
  • wizard to select the cartridge’s optimal loading through frequency response automated analysis
  • XLR and RCA connections

EQ Curves

  • RIAA and enhanced RIAA (with additional Neumann pole) EQ curves factory fitted
  • high grade, tight tolerance custom components
  • optional add-on board containing EMI, Columbia, Decca and Teldec EQ curves

Analogue Signal Path

  • selectable high-pass subsonic filter to remove unwanted rumble
  • ultra low noise, high bandwidth, high slew rate design
  • class-A, discrete transistor based design

 

Power Supply

  • ultra low noise, high accuracy, discretely regulated linear power supplies
  • oversized mains toroidal transformers
  • shunt regulators for all stages
  • can be powered from the X1 External Power Supply unit

Reviews

“CH Precision’s P1 Phono preamplifier… is not going back to its manufacturer. The longer I used it, the more obvious it became that I couldn’t part with it, even though I said I couldn’t afford it.” – MICHAEL FREMER, STEREOPHILE (read in full here)

“CH Precision represents the 21st-century ultra high-end brand, that implements the latest technological advancements effectively in their products.” – MATEJ ISAK, MONO & STEREO (read in full here)

“Sonically, the P1 sits firmly in the high-resolution, ultra-transparency school of solid-state phono-stage design. It’s quick, clean and incredibly lucid at the note-to-note level, clearly defining the attack, weight and sustain of each note, the space between it and the next note in line and the space around the instrument.” – ROY GREGORY, THE AUDIOBEAT (read in full here)

Specificatons

MC Current Inputs

Input type 2x current mode inputs, XLR and RCA connectors available
Input impedance <100mΩ, virtual ground inputs
Gain 6 steps (gain dependent on the cartridge internal resistance)
Equivalent input noise (EIN) <-135dBu without X1 unit / <-138dBu with X1 unit / 1Ω termination, gain +70dB, 22kHz BW

MM/MC Voltage Input

Inputs type 1x voltage mode inputs, XLR and RCA connectors available
Input impedance Variable from 100kΩ to 20Ω
Gain (at 1kHz) +35dB, +40dB, +55dB, +60dB, +65dB, +70dB
Equivalent input noise (EIN) <-130dBu without X1 unit / <-135dBu with X1 unit / 1Ω termination, gain +70dB, 22kHz BW

Playback Equalisation Filter

Default equalisation filters RIAA, enhanced RIAA (additional Neumann pole)
Optional equalisation filters EMI, Columbia, Decca and Teldec
Equalisation filters accuracy +/- 0.1dB

High Pass Filter (by-passable)

Filter order 3rd order (-18dB per octave)
Cut-off frequency 10Hz

Analogue outputs

Output level Up to 8V RMS (balanced), Up to 4V RMS (unbalanced)
Frequency response > 400kHz (RIAA equalisation filter disconnected), current input selected
Total Harmonic Distortion + Noise <0.01%, 1kHz, output level 3V RMS, 22kHz BW

General

Display 480×272 pixels, 24bits colour, AMOLED
Mains operation Selectable 100V, 115, 230V AC, 47-63Hz
Fuses value and location Standby fuse (black holder): 250mA T (230V AC), 500mA T (100V AC, 115V AC)
Main fuse (white holder): 1.6A T (230V AC), 3.15A T (100V AC, 115V AC)
Power supply consumption <1W (standby), 100W max in operation
Dimensions/Weight 440 x 440 x 133mm (W x D x H), 20kg
Remote control Ethernet based system control via the Android CH Control App

Upgrades & Accessories

Download

User Manual
Manufacturer Website

 

You may also like…