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Empirical Labs, Inc EL/Rx-H Doc Derr
500 Series Instrument Preamp with Horizontal Faceplate

OUR PART #:  ELRX-H-DOCDERR

A super low-noise preamp capable of line or 16 dB of “instrument” gain is followed by four sections of EQ offering one selectable high pass and three parametric bands.
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Our Price: $889.00
List Price: $999.00
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Empirical Labs, Inc EL/Rx-H Doc Derr
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A super low-noise preamp capable of line or 16 dB of “instrument” gain is followed by four sections of EQ offering one selectable high pass and three parametric bands.  The dynamics section provides renowned Empirical Labs compression at an unprecedented price, as well as a tape emulation circuit to soften high frequencies and transients.  A “Mix” knob allows the user to blend the uncompressed EQ’s signal with the compressed and saturated signal.  Inputs and outputs are DC coupled, and the output can be switched between single ended or differential, yielding + 6dB of gain.  A “Bad!” hard clip indicator monitors most every section for internal clipping.

Specifications:

  • Freq. Response is 3 Hz to 180 kHz on eq section (-3dB points).
  • Dynamic Range - 120 dB from maximum output (.5%THD soft clipping) tominimum output.   Noise floor with Mix on 0 is typically – 91dBu.
  • Distortion Ranges between .0006% and 10% at 1KHz, depending on mode andsettings.
  • DC coupled Input and Outputs, - High quality audio caps used internally.
  • Input Impedance is 120k Ohm, Instrument In Mode. Output impedance is lessthan 75 ohms.  20K input impedance in balanced Line in mode.
  • Maximum Input before hard clipping - +22dBm,  “ Line In” mode.
  • Maximum Output (Mix at 0) - +28.5dBm
  • Compressor Dynamics Time Constants - Attack time is around 1mS. Release .2 sec, fixed internally.
  • Power Consumption – 5 Watts max.  3 Watts typical with 16Volt powersupplies.
  • Shipping Weight - 1.3lbs.

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