The CH Precision C1.2 D/A Controller is a modular digital-to-analogue converter and digital preamplifier engineered with four linearised R-2R chips per channel for dedicated reference-level playback. Operating with a 32-bit fixed-point spline filtering engine and a thermally compensated MEMS master clock, the unit decodes high-resolution PCM and DSD audio without phase distortion. Its configurable modular architecture accommodates external transports, USB audio, and high-resolution network streaming sources seeking uncoloured musical reproduction.The Hi-Fi Centre Team TakeThe CH Precision C1.2 D/A Controller functions as an exceptionally quiet, transparent nerve centre that anchors an ambitious listening room with complete composure. In day-to-day operation, the precision hybrid volume control and modular inputs deliver an effortless, tactile experience that removes the listener fatigue often caused by digital timing errors. Extended listening sessions reveal nuanced micro-dynamics and natural acoustic decay, allowing instruments to emerge with convincing physical presence and weight.Key Acoustic & Design Features Dual-Mono R-2R Architecture: Employs four linearised conversion chips per channel in a fully balanced layout to maximise channel separation and dynamic expression. PEtER Spline Filtering: Executes 32-bit fixed-point algorithms to preserve critical phase relationships and natural acoustic transient timing. Hybrid Volume Control: Regulates output levels in 0.5 dB steps to drive power amplifiers directly without low-level resolution loss. Authorized Dealer: Hi-Fi Centre provides verified manufacturer warranty coverage, official factory firmware support, and expert long-term technical guidance. Technical Specifications Brand & Model: CH Precision C1.2 Device Type: Modular D/A Controller and Preamplifier Conversion Topology: Linearised R-2R, 4x PCM1704 per channel in fully differential dual-mono configuration DSP Processing: 32-bit fixed-point CH-PEtER spline filtering algorithm Master Clock: Thermally compensated, shunt-regulated MEMS oscillator Supported Formats: PCM up to 24-bit/768kHz (32-bit via CH-Link HD), native DSD up to DSD128, MQA full decoding Standard Digital Inputs: 1x CH-Link HD, 1x AES/EBU (XLR), 1x Coaxial (S/PDIF RCA), 1x Optical (TosLink) Optional Input Boards: Ethernet streaming, asynchronous USB, analogue inputs (balanced XLR / single-ended RCA), external Clock-Sync board Analogue Outputs: Balanced XLR (5.1V RMS), Single-ended RCA / BNC (2.55V RMS) Signal-to-Noise Ratio: > 120 dB Total Harmonic Distortion + Noise: < 0.001% (below 22 kHz, 1 kHz 0 dBFS) Volume Attenuation: 0.5 dB step hybrid digital/analogue attenuator (bypassable) Display: 800 x 480 pixel 24-bit RGB AMOLED Chassis Material: Precision-machined solid aluminium Dimensions (W x H x D): 440 x 133 x 440 mm Weight: 20 kg
