Heritage Audio GRANDCHILD 670
vari-mu tube stereo compressor, 500-series (Fairchild 670-inspired)
Compressor / Limiter$1,999Manufacturer list price
Specifications
- Type
- Compressor / Limiter
- Description
- vari-mu tube stereo compressor, 500-series (Fairchild 670-inspired)
- Topology
- vari-mu tube compression, 4x 6BA6 (5749) NOS tubes, 3 custom transformers
- Signal path
- Analog
- Channels
- 2
- Channel format
- stereo
- Form factor
- 500-series module (2-slot/double-wide)
- Powered
- 500-series rail power
- Frequency response
- 20Hz-20kHz ±0.5dB
- Introduced
- 2023
Details
Controls: Input gain (20dB range), AC threshold, DC threshold (progressive ratio), 5 attack times, 5 release times, 3-position HP sidechain filter, active/bypass/off
I/O: standard 500-series I/O
Notes: $1,999 cited as MAP; street prices observed as high as $2,299 at some retailers (Sweetwater, Pro Audio Design), flagged as variable. 180mm x 133mm x 75mm module footprint.