Empirical Labs EL/Rx-H DocDerr
MPN #EL/Rx-H DocDerr
The Empirical Labs DocDerr is a 500 series multi-purpose tone module. Horizontal oriented front panel.
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.
An extremely low-noise preamp capable of working with line level or instrument level signals, is followed by four sections of EQ combining a two position high pass filter with three parametric bands, each with its own set of carefully tuned frequency presets. An internal jumper can turn the DocDerr into an unparralled instrument preamp with 16dB of gain, ideal for acoustic guitar, bass, synths, exotic plucked instruments, etc.
The versatile EQ is followed by a unique dynamics section which offers renowned Empirical Labs compression at an unprecedented price, and an extremely musical tape emulation circuit that softens and tames high frequencies and transient spikes. We believe it's the best single knob "knee" compression available in this format.
One of the pivotal features of the DocDerr is the "Mix" knob which allows the user to blend the uncompressed EQ's signal with the compressed and saturated signal. This parallel compression technique, used by top recording and mixing engineers for many years unlocks a whole world of sonic possibilities.
Like all ELI 500 series modules, the EL-Rx is available with either horizontal or vertically oriented front panel configurations, and is "Linkable" for using our famous compression on stereo sources.
The DocDerr is ideal for tracking, for fine-tuning tracks during mixing, or as a killer solution for the gigging "acoustic" musician in search of studio quality tone control. It is indeed a Tone Doctor...err... DocDerr.
Six digitally controlled sections of analog processingFrequency 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 settingsMaximum Input before hard clipping: +22dBm, " Line In" mode. Maximum Output (Mix at 0) - +28.5dBmCompressor 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.
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