CH Precision has detailed the L10 Reference Line Preamplifier, the Swiss manufacturer’s ground-up successor to its acclaimed L1. Rather than a routine refresh, the CH Precision L10 is a complete reimagining of the line-stage, built from first principles while keeping the fully discrete, balanced architecture that made the L1 a benchmark for musical transparency.
Redefining the Reference
CH Precision says every element of the design has been reassessed and, where possible, improved: shorter and cleaner signal paths, a new purpose-built power supply with significantly greater regulation and storage, user-selectable feedback topology, and proprietary software that compensates for DC offset between connected components. The result, the company argues, is not an evolution of the L1 but a redefinition of what a line preamplifier can be.
At the heart of the design is a new volume control built around a current-domain R-2R ladder network rather than conventional post-gain attenuation. It offers precise 0.5dB steps across a 141dB dynamic range, followed by a dedicated I/V conversion stage that preserves signal integrity. Through the front panel or the CH-Control app, owners can tailor feedback topology, compensate for DC offset, and configure multi-chassis operation without ever touching the signal path itself.
Where Precision Meets Power
Most preamplifiers draw modest power; this one does not. Its dual transformers and 700,000µF of energy storage exceed the power supply capacity of many ambitious power amplifiers, and complete galvanic isolation between every stage eliminates interstage interference. CH Precision frames this not as excess but as the foundation that lets the analog circuitry operate with extraordinary resolution and a vanishingly low noise floor.
Connectivity runs to four balanced XLR, two single-ended RCA and two single-ended BNC inputs per channel, with two balanced XLR, one single-ended RCA and one single-ended BNC output per channel. CH Precision quotes a bandwidth of DC to beyond 1MHz, distortion below 0.0008%, and a signal-to-noise ratio exceeding 141dB, figures that place the CH Precision L10 among the most measurably transparent preamplifiers the brand has built.
A Platform, Not a Fixed Design
As with every CH Precision component, the L10 is conceived as a platform rather than a finished statement. It ships as a stereo dual-chassis preamplifier and power supply, but a second unit can be added to build a four-chassis dual-monaural array for owners chasing further gains in resolution and channel separation. An 800×480 AMOLED display, a dual concentric encoder or five-button interface, an infrared remote and the CH-Control app (Android now, iOS to follow) round out a control system CH Precision designed as an extension of the component itself.
Pricing and availability
CH Precision does not publish pricing on its own site; independent retailer listings place the two-chassis CH Precision L10 at $80,500 in silver and $85,500 in anthracite or champagne, with the four-chassis dual-monaural version at $138,000 and $148,000 respectively. It sits alongside other CH Precision reference electronics such as the CH Precision P10 phono stage, and is available through CH Precision’s dealer network.
Key specifications
- Model: CH Precision L10 Reference Line Preamplifier (dual-chassis)
- Volume control: current-domain R-2R ladder, 0.5dB steps, 141dB dynamic range
- Upgrade path: add a second L10 for four-chassis dual-monaural operation
- Power supply: dual transformers, 700,000µF storage, fully galvanically isolated stages
- Inputs: 4x balanced XLR, 2x single-ended RCA, 2x single-ended BNC per channel
- Outputs: 2x balanced XLR, 1x single-ended RCA, 1x single-ended BNC per channel
- Performance: DC to >1MHz bandwidth, THD+N <0.0008%, SNR >141dB
- Price: from $80,500 (silver, two-chassis) per independent retailer listings
