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Signal Reference CA-1 – Tube Preamplifier - $600 (berkeley)
condition:
like new
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Rare Signal Reference CA-1 featuring a 3-tube analog signal stage with integrated volume control and multi-input RCA switching—a unique combination in a single chassis.
This is a true tube line preamplifier, designed to manage multiple sources while adding the natural warmth, dimensionality, and musicality that only vacuum tubes provide.
CA-1 includes:
✔️ Active tube gain stage (3 tubes)
✔️ Front-panel volume control
✔️ Multiple input selection included dual output
This allows it to function as the central control hub of a high-end analog system.
🎧 Sound Characteristics (what buyers want to hear)
Smooth, natural midrange
Expanded soundstage and depth
Reduced harshness compared to solid-state
Musical, engaging presentation
Perfect match for:
Tube or solid-state power amps
High-end DACs
⚙️ Features:
3 internal vacuum tubes
Volume control (preamp functionality)
Multiple RCA inputs / outputs
Solid, well-built chassis
Designed for audiophile-grade systems
Condition:
Good cosmetic condition with new
Tubes installed