HD Preamp vs CH Precision L1
The L1's signal-to-noise is 130 dB against the HD Preamp's 160 dB, its output impedance 30Ω against 0.2Ω, its input impedance 94Ω against 50Ω, and its weight 20 kg (44 lbs) against 30 kg (66 lbs).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-Amplifiers
Estimated price (community-sourced)
$72,975 - $88,500
Around — community and catalog average, updates slowly
About the HD Preamp
The Nagra HD PREAMP is a reference-class, two-chassis, fully tube-based line preamplifier introduced in 2017. It uses two independently regulated SuperCap power-supply sections and two Nagra-selected NOS E88CC tubes, with one triode input stage per channel. The design provides balanced and single-ended connectivity, selectable input-level modes, bypass/throughput functionality, record output routing, ground-lift controls, and Nagra’s signature modulometer. Nagra claims exceptionally low noise, very wide bandwidth, excellent phase integrity, and an unusually low output impedance. Published specifications vary slightly by source and test method; figures below distinguish manufacturer claims from independent laboratory measurements where available.
Specifications
Analog Output
Analog signal output specifications
- SNR
- 160 dB
- Output Impedance
- 0.2Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- XLR, RCA
- Analog Inputs
- RCA, XLR
- Analog Outputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 438 × 121 × 396 mm (W × H × D)
- Weight
- 30 kg (66 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions