Coil Audio CA-70S
Standalone tube mic/line preamp
Preamp$1,899Manufacturer list price
Specifications
- Type
- Preamp
- Description
- Standalone tube mic/line preamp
- Topology
- tube/valve, transformer-coupled
- Signal path
- Analog
- Channels
- 1
- Channel format
- mono
- Form factor
- 2U rack, standalone with integrated power supply
- Rack units
- 2
- Powered
- true
- Impedance (Ω)
- 150 (mic in) / 20000 (line in) / 600 (out)
- Country of manufacture
- USA (Lawrence, Kansas)
Details
Controls: Input pad (mic/line), gain (42-54dB), negative-feedback tone control with LOW filter
I/O: Mic/line input with flexible input pad; XLR I/O
Notes: Standalone 2U single-channel version of the CA-70 PS6 module, with CT-110HN input and CT-41 output transformers, slow-ramping/linear regulated internal power supply to prolong tube life. Two-stage 6J7/6C5 tube circuit. Phantom power not mentioned on product page — left blank rather than guessed. No frequency response, dimensions/weight, or year of introduction published. Reviewed favorably by Tape Op magazine (external source, not used to fill spec fields).