Empirical Labs DOCDERR-ESSER 500 Series Bundle, 1xELRX, 1xEL-DS, 1xEL500

One of the newer members of the Empirical Labs family is the DocDerr, a 500 series multi-purpose tone enhancement module that houses six different sections of digitally controlled analog processing. With over two years of meticulous development and testing behind it, the DocDerr provides an unprecedented combination of power and musicality in a compact, easy to use format. Empirical Labs' first compressor in the API 500 format.

The first entry by ELI into the 500 series format, the DerrEsser is a multi function dynamic filtering device. Available in vertical or horizontal versions. A perfect fit for our EL500 powered rack. In its basic “DS” mode, it is an effective, level insensitive “de-esser” - a device that will adjust the high frequency gain on overly trebly or spiky vocals or other sources in an extremely musical manner. However, unlike other de-essers, the device allows for multiple use of its powerful circuitry.

The Empirical Labs EL500 rack eliminates obstacles such as noisy power supplies, XLR-only I/O, and protruding modules. At the heart of the unit is a super quiet power supply - over 30 dB quieter than some supplies we’ve seen - that will ensure optimal performance from any compatible device.

All 500 series modules will flush mount cleanly in the EL500, providing a much more professional look and feel. The EL500 offers both XLR and phone rear panel inputs and outputs to allow it to interface perfectly with any system.

In addition, a ¼” instrument preamp/direct box input is provided on the front panel, which will automatically switch the left 500 module’s input to this front phone jack once something is plugged into it – a feature we’re sure will prove to be extremely useful. In fact, it has become the first call bass DI for many engineers. Switches to link compressors and engage a 48V phantom supply are also provided.

Specifications:

• DocDerr
  • Six digitally controlled sections of analog processing
  • Frequency response - 3 Hz to 180 kHz on eq section (-3dB points).
  • Dynamic range - 120 dB from maximum output (.5%THD soft clipping) to minimum output. Noise floor with Mix on 0 is typically – 91dBu.
  • Distortion range - between .0006% and 10% at 1KHz, depending on mode and settings.
  • 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. Stereo Linkable for stereo tracks. With the EL500 powered rack, the push of a button enables linking.
  • Input Impedance - 120k Ohm, Instrument In Mode, output impedance is less than 75 ohms. 20K input impedance in balanced Line in mode.
  • Guitar adaptor cable included
• Derresser
  • Freq. Response is 3 Hz to 120 kHz (-3dB points).
  • Dynamic Range - 115 dB from maximum output (.5%THD soft clipping) to minimum output. Transformerless noise floor typically – 93dBu.
  • Distortion Ranges between .0035% and .01% depending on mode and settings.
  • DC coupled Input and Outputs
  • High quality audio caps used internally.
  • Input Balanced, Output single ended but with balanced impedance.
  • Pin 2 hot
  • Input Impedance is 20k Ohm. Output impedance is less than 51 ohms.
  • D-S Dynamics Time Constants - Attack time is less than 1mS. Release .04 sec, fixed internally.
  • Power Consumption – 8 Watts max. 4 Watts Typical