Empirical Labs EL-Rx DocDerr 500 Series Multi-Purpose Tone Module

500 Series channel strip from Empirical Labs.




It’s all about TONE. The DocDerr is a digitally
controlled Preamp, EQ, Compressor and Saturator module good not only for
general use, but can single handedly bring incredible tone to any
source, even electrified acoustic instruments. It offers unprecedented
amounts of processing and musicality in an API 500 compatible module.
With a mini-computer inside (Microcontroller), one controls 4 analog EQ
sections, and a new dynamic section capable of chopping brittle edges
and digital transients with its compressor and saturation circuits.

The
signal route begins at an extremely low-noise preamp capable of working
with line level or instrument level signals, 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 un-paralleled 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.

One of the pivotal features of the DocDerr is the “Mix”
knob, which allows you 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.



Features

Multi-purpose tone enhancement module for 500 Series racks
Super low noise line input, or instrument preamp
Six digitally controlled sections of analog processing
Four sections of Equalization – One High Pass and 3 parametric bands
Renowned Empirical Labs compression
Saturation circuitry that scrunches the highs and allows hotter levels like tape




Is your tone sounding weak? Time to call in the DocDerr, order today!





EL-Rx DocDerr 500 Series Multi-Purpose Tone Module Specifications:


Frequency Response is 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 Ranges between .0006% and 12% at 1KHz, depending on mode
and settings
DC coupled Input and Outputs, - High quality audio caps used internally
Input Impedance is 120K Ohm, Instrument In Mode. 20K input impedance in balanced Line in mode
Maximum Input before hard clipping - +22dBm, “ Line In” mode
Maximum Output - +28dBm (Mix = 0). Output impedance is 75 ohms
Compressor Dynamics Time Constants - Attack time is about 1mS. Release
.2 sec, program dependent, fixed internally
Power Consumption – 4 Watts max. 2 Watts typical with 16Volt power supplies
Shipping Weight - 1.3lbs








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