Empirical Labs DocDerr EL-Rx
500-series multi-purpose tone module (preamp + EQ + compressor + tape saturation)
Channel Strip$889Manufacturer list price
Specifications
- Type
- Channel Strip
- Description
- 500-series multi-purpose tone module (preamp + EQ + compressor + tape saturation)
- Topology
- FET, Class-A, discrete
- Signal path
- Analog (recallable / digitally controlled)
- Channels
- 1
- Channel format
- mono (stereo-linkable via EL500 rack)
- Form factor
- 500-series module
- Connection
- API 500-series rail
- Powered
- no (powered via 500-series rack/lunchbox)
- Frequency response
- 3 Hz - 180 kHz on EQ section (-3 dB points)
- Impedance (Ω)
- input 120k (instrument), 20k (line); output <75
- Country of manufacture
- USA
Details
Controls: Low-noise preamp gain, 2-position high-pass filter, 3-band parametric EQ (preset frequency steps), Compressor (~5:1, 5 dB knee), tape emulation saturation, Mix (dry EQ vs compressed/saturated blend), compressor link switch, 48V phantom engage switch
I/O: Balanced line input, 1/4" instrument input (selectable, 16 dB gain instrument mode); requires API 500-series lunchbox/rack for power and I/O
Notable use: 2012 Pro Audio Review Excellence Award; used by producer/mixer Jacquire King (Arctic Monkeys, James Bay, Modest Mouse)
Notes: FLAGGED: multi-function device (preamp/EQ/compressor/saturation) classified as Channel Strip per task guidance. Also sold in Horizontal (ELRX-H) and Vertical (ELRX-V) panel orientations and as a factory Duo pair - treated as one row (orientation/pairing is a packaging variant, not a distinct circuit). Phantom power is supplied by the EL500 host rack, not generated on the module itself. Price is Sweetwater street price.