Empirical Labs EL-Rx DocDerr 500 Series Channel Strip

Reverb Estimated Used Price Range

  • $475$635

The Empirical Labs DocDerr (named after company founder and chief designer, Dave Derr) is a 500 Series line preamp with 3-band parametric EQ, HPF, wet/dry mix control, and an internal jumper for use with instrument level signals.


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