CS Port
The C3PR is a full-scale vacuum tube stereo preamplifier designed to deliver ultra-precise sound reproduction and uncompromising clarity. Featuring the highly regarded C3g tube in a no-feedback, two-stage circuit, the C3PR eliminates distortion and common-mode noise to reveal audio with exceptional linearity and nuance. This flagship preamp also utilizes fully transformer-balanced input and output stages to maintain signal integrity throughout the chain, while offering smooth attenuation via a high-grade resistor-switching network.
Built around the rare and ultra-reliable C3g tube from Deutsche Telekom, the C3PR ensures clean, linear amplification through a minimalist, two-tube topology. Its input and output transformers are custom-designed to deliver true balanced transmission, ensuring optimal performance in distortion control and S/N ratio. With separate, doubly regulated power supplies for each channel, the C3PR eliminates cross-channel interference and suppresses line-borne noise. The units attenuator avoids the distortive pitfalls of sliding contacts, instead using gold-plated relays in a crossbar-twin configuration for silent, step-based level control. The result is a powerful yet quiet preamp that performs as beautifully as it looks.
