P1 Dual Monaural Phono-Stage
That reflects both the inherent qualities and character of analog 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 optimization 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 P1’s 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.
P1 Dual Monaural Phono-Stage
MC current-sensing input impedance
< 100mΩ, virtual ground
MC equivalent input noise (EIN)
Without X1: < -135dBu
With X1: < -138dBu
measure conditions: 1Ω termination, gain +70dB, 22kHz BW
MM/MC voltage input impedance
Variable from 100kΩ to 20Ω
MM/MC equivalent input noise (EIN)
Without X1: < -130dBu
With X1: < -135dBu
measure conditions: 1Ω termination, gain +70dB, 22kHz BW
Playback EQ curves accuracy
± 0.1dB
High pass filter
3rd order (-18dB per octave), 10Hz
Max analog output level
Balanced: 8VRMS
Single-ended: 4VRMS
Frequency response
> 400kHz
measure conditions: RIAA equalization filter disconnected
Total Harmonic Distortion + Noise
< 0.01%
measure conditions: 1kHz, output level 3VRMS, 22kHz BW
Power supply
Selectable 100V, 115V or 230V AC, 47Hz to 63Hz
Power consumption
Standby: < 0.5W
Normal operation: Max 100W
Operating conditions
Temperature: +5°C to +35°C
Humidity: 5% to 85% (no condensation)
Dimensions/Weight
Net: 440 x 440 x 133mm (W x D x H), 20kg
Gross: 800 x 600 x 300mm (W x D x H), 28kg
P1 Dual Monaural Phono-Stage
Scalable And Upgradable
Elevate your audio experience with our modular solution, designed for unparalleled flexibility and performance. Our system allows you to customize your setup to meet your high standards, from a compact unit to a powerful four-box solution.
Starting with the ‘Dual Monaural’ two channels in a single chassis, you can further extend your system’s capabilities by adding an X1 external power supply. But that’s just the beginning – upgrade to the ‘True Monaural’ configuration by adding a second audio chassis, each with one channel, and unlock even greater sound quality. This configuration provides improved isolation and reduced noise, resulting in a more precise and detailed audio presentation.
Take your audio setup to the next level with our ultimate four-box solution, achieved by adding a second X1 power supply to your ‘True Monaural’ configuration. This fully isolates the two channels, eliminating any potential interference and allowing you to appreciate the full range of your audio system’s capabilities. By combining the benefits of each previous configuration, our four-box solution provides the quietest listening experience.
CH-Control App
Meet the CH-Control App – a control application that allows users direct access to every aspect of their CH system’s set up and use via any Android portable device. The software control systems used to set and monitor the operational parameters of each and every CH component offer the perfect opportunity for remote operation via a portable App.
To use the CH-Control App, all you will need is an Android device and to connect your CH components to an Ethernet network. That can be done either through the Ethernet control board fitted as standard to all CH units, or through the network streaming board that can be installed in C1.2, C1.2 Mono or I1 units. We would always recommend using a dedicated tablet and network for your music streaming and system control requirements.
Once your CH system is all hooked up, the App gives you touch screen access to every setting on every CH component, from your listening seat, a huge benefit when it comes to whole system set up or optimization for individual recordings. Either way, the CH-Control App allows you to make easier and more accurate judgements: Total control, quite literally at your fingertips.
The features of every CH product are accessible through the CH-Control App:
- Built-in UPnP controller to stream dematerialized music, create playlists, etc.
- Set volume level, select sources, reverse phase, mute, etc.
- Access to all the advanced set-up parameters in every CH product.
- Works on a standard Ethernet network.
- The CH-Control App is freely available on Google Play or directly on our website.
