Fredenstein F660
Tube Limiting Amplifier (Fairchild 660/670-style)
Compressor / Limiter$2,996Manufacturer list price
Specifications
- Type
- Compressor / Limiter
- Description
- Tube Limiting Amplifier (Fairchild 660/670-style)
- Topology
- tube/valve, transformer, single-stage push-pull Class-A
- Signal path
- Analog (recallable / digitally controlled)
- Channels
- 1
- Channel format
- mono, stereo-linkable
- Form factor
- standalone/desktop
- DSP
- true
- Powered
- true
Details
Controls: Make-up Gain, Compression Threshold, Release (6 settings), Attack (6 settings) via push-encoders; Bypass, side-chain HPF, stereo link (via encoder push); LCD for additional parameters, RMS/Peak/Hold metering, 99 user presets, self-calibration
I/O: Transformer-coupled in/out, T-type input attenuator
Notable use: Modern remake of the vintage Fairchild 660/670 limiting amplifier, using the same 6386LGP tube type (4 per channel)
Notes: JUDGMENT CALL: form_factor inferred as standalone/desktop chassis (described by one reviewer as a 'massive gold monolith'); not confirmed rackmount or 500-series. Reviewed by Tape Op. DSP manages tube operating points; side-chain uses semiconductor components. Price reporting inconsistent (one source cites '$3999 per channel' which is likely a misreading of a stereo-pair price) - used $2,996 regular price from My Audio Supplies as the more coherent single-unit figure; flag for verification.