CH Precision C1.2 Controller DAC Streamer Digital Preamp
CH Precision C1.2 Controller DAC Streamer Digital Preamp - Image 2
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CH Precision C1.2 Controller DAC Streamer Digital Preamp

CH Precision C1 Ultimate Digital Preamp Controller DAC Streamer.

Sometimes, what you want is exactly what you get. Take the C1.2 DAC/Controller as an example: You want a world-class DAC with leading edge digital design and cutting edge musical performance? You’ve got it. You want a control unit to switch multiple digital inputs and control level? You’ve got it. You want to accept and switch analog inputs? You can do that too. You want a product that‘s future proof in terms of price AND performance? The C1.2 ticks that box as well! In fact, the C1.2 is any or all of those things; you get to choose…

Normally, creating a world-class DAC could be considered a sufficient challenge on its own, but the use of modular component architecture and the power of sophisticated software control opens up opportunities as well as offering solutions: opportunities that transform the role, capabilities and versatility of the C1.2 – as well as allowing existing C1 units to be upgraded to full C1.2 standard.

 

Manufacturer’s website CH Precision

SKU: 777888 Categories: , Tags: , , , , , ,

CH Precision C1.2 Specifications:

Conversion type

  • Linearized R-2R, 4x PCM1704 per channel
  • 24 bit / 705.6kHz & 768kHz

DSP processing

  • CH-PEtER upsampler, synchronous, DSD to PCM conversion and resolution enhancer

Full scale analog outputs level

  • 5.1V RMS balanced
  • 2.55V RMS single-ended

Signal to Noise Ratio

  • > 120dB

Total Harmonic Distortion + Noise

  • < 0.001%, full scale, 22kHz BW

Weight

  • 20kg per unit

Dimensions

  • 440 x 440 x 133mm (W x D x H), 20kg per unit

Volume Control

  • By-passable 0.5dB step hybrid volume control, course steps using a relay/resistor ladder, with fine steps in the digital domain, to maximise system resolution.
  • Channel balance in 0.5dB steps
  • Switchable for mono (input L + input R) output.
  • Switchable absolute phase

Analog Input Board

  • Discrete, fully differential analog input circuit
  • Balanced XLR and single-ended RCA inputs
  • 6V RMS maximum input level
  • Input gain is user selectable
  • Up to two Analog input boards can be fitted, providing a maximum of two balanced XLR and two single-ended RCA inputs.

Analog-to-Digital conversion

  • • DSD 1bit/5.6448MHz (DSD128) direct conversion

Analog Output Stage

  • Pure class A, fully symmetrical circuit
  • Fully discrete, ultra low noise, high slew rate design
  • Zero global feedback
  • One pair each – balanced XLR, single-ended RCA and BNC outputs
  • DC coupled
  • 5.4V maximum output (balanced XLR), 2.7V maximum output (single-ended RCA/BNC)

Display

  • 800 x 480 pixel, 24bit RGB AMOLED
  • 7 standard, user-selectable text colors
  • User definable RGB option for text color

Remote Control Options

  • Infrared Remote Control handset for basic functions
  • Ethernet-based Android control App

Optional Hardware

  • Digital Input Board – CH-Link HD, AES/EBU, S/PDIF and Toslink
  • Ethernet Network Streaming HD Input Board
  • Asynchronous USB Input Board
  • Clock-Sync Board
  • Analog Input Board – One pair balanced XLR, one pair single-ended RCA
  • Fully compatible with X1 External Power Supply
  • Compatible with T1 10MHz Time Reference external clock (with Clock-Sync board)

Standard Inputs

  • Factory fitted with CH-Link HD, AES/EBU, S/PDIF and Toslink digital inputs.
  • The CH-Link HD interface allows for synchronized transfer of high definition audio content (up to 32bit/768kHz) and DSD512 (8x), offering the ideal interconnection to the D1.5 CD/SACD Transport or other CH-Link HD equipped units.
  • Standard digital inputs accept PCM to 24bit/192kHz, DSD 1bit/2.822MHz (DSD over PCM or DoP-encoded).

Optional Digital Inputs

  • The C1.2 can accept up to three digital input boards to allow multiple digital sources to be connected.
  • Ethernet audio streaming HD input board (UPnP/DLNA compatible) allows connection to local audio servers (such as NAS drives running a UPnP server) or streaming services (such as Qubuz, Tidal or webradios).
    PCM to 24bit/384kHz (768kHz for uncompressed formats)
    DSD 1bit/2.8224MHz (DSD64), 5.6448MHz (DSD128), 11.2896 MHz (DSD256) or 22.5792MHz (DSD512)
    Native DSD and DoP
    WAV, AIFF, FLAC, ALAC, AAC and MP3 formats supported in PCM
    DSF and DFF formats supported in DSD
  • Asynchronous USB audio streaming input board – PCM to 24bit/384kHz, DSD 1bit/5.6448MHz (DSD128) in DoP Mode

Digital to Analog Conversion

  • Four PCM-1704 R-2R converters per channel
  • Fully complementary, dual mono symmetrical circuit topology
  • Discrete, dedicated, fully regulated linear power supplies for low noise and maximum channel separation

Processing

  • Four independent 2.4GFLOPS DSP engines for each channel
  • Proprietary CH-PEtER 32-bit fixed point, synchronous data over-sampling processing
  • Direct DSD to 705.6kHz, PCM conversion
  • Resolution enhancement of audio material recorded at less than 24bits
  • Full MQA decoder (unfolding and rendering) at 24bit/768kHz.

Timing & Clocking

  • Ultra low jitter MEMS-based, thermally compensated Master Clock with dedicated, shunt regulated power supply
  • Optional Master/Slave Clock-Sync board allows synchronization with T1 10MHz Time Reference clock or other 10MHz external clocks.
  • Clock-Sync board also synchronization with the D1.5 CD/SACD transport.

Please find reviews below

CH Precision D1.5 SACD Transport and C1.2 DAC review in
“High Fidelity” Online Magazine, December 2023.
Complete review at https://highfidelity.pl/@main-1328&lang=en

CH Precision C1.2 DAC / Controller review by Roy Gregory in “Gy8” Online Magazine, February 2023.
Complete review at HERE

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CH Precision C1.2 DAC / Controller D1.5 Transport review by Roy Gregory in “Gy8” Online Magazine, January 2023.
Complete review at https://gy8.eu/review/total-control/

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CH Precision C1.2 / D1.5 / T1 and X1 Digital Front End review in “Stereophile” Magazine, February 2023
Complete review HERE

Weight30 kg

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