EMPIRICAL LABS DocDerr ELRX-H - 500 Series - Multi-Purpose Tone Module (Horizontal Version)
SKU: 78697978297

EMPIRICAL LABS DocDerr ELRX-H - 500 Series - Multi-Purpose Tone Module (Horizontal Version)

Sale price$64734.75 Regular price$71927.50
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Description

EMPIRICAL LABS DocDerr ELRX-H - 500 Series - Multi-Purpose Tone Module (Horizontal Version)Six Sections of Processing 3x Parametric Bands of EQ 1x High Pass Filter Aggressive Compressor Circuit Mix Knob Blends Compressor w Dry Signal Musically Saturates Like Analog Tape EL500 Rack w Super Quiet 16V Supply Stereo Link Switch Built In Instrument Input D. I. Hand Built and Calibrated in the USA The DocDerr ELRX H from Empirical Labs is a horizontal multi purpose tone enhancement module that houses six different sections of digitally controlled

  • Six Sections of Processing
  • 3x Parametric Bands of EQ
  • 1x High Pass Filter
  • Aggressive Compressor Circuit
  • Mix Knob Blends Compressor w/ Dry Signal
  • Musically Saturates Like Analog Tape
  • EL500 Rack w/ Super Quiet 16V Supply
  • Stereo Link Switch
  • Built-In Instrument Input D.I.
  • Hand-Built and Calibrated in the USA

The DocDerr ELRX-H from Empirical Labs is a horizontal multi-purpose tone enhancement module that houses six different sections of digitally controlled analog processing�and designed for any API 500- Series enclosure. The DocDerr features a 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 unparalleled instrument preamp with 16 dB of gain, great for acoustic guitar, bass, synths, exotic plucked instruments, and more.

The EQ is followed by a dynamics section which offers compression and a musical tape emulation circuit that softens and tames high frequencies and transient spikes. The DocDerr features the Mix knob, which allows the user to blend the uncompressed EQ's signal with the compressed and saturated signal. The DocDerr is great for tracking, fine-tuning tracks during mixing, and studio quality tone control.

DocDerr Module

Low noise line input, or instrument preamp, with compression and six digitally controlled analog sections of processing
Four sections of equalization including one high pass and three parametric bands
Complex compressor envelope generator that is fast, yet musically saturates at high gain reduction and features a program dependent release
Saturation circuitry that scrunches the highs, allows hotter levels, and uses filtering combined with germanium clip circuitry to soften loud high frequencies
Mix control to allow user to blend an uncompressed equalized signal back in with the compressed saturated signal (when on 0, only the equalized signal is put out)
DC coupled input and outputs
Selectable single ended or differential output (adds 6 dB gain)
Traditional and digitally controlled analog
Hard clip indicator lights illuminate when the sound level is within 1 dB of hard clipping and monitors many sections for internal clipping
All metal film and Roederstein resistors in the audio path
UPC: 854682006115
In the Box
EMPIRICAL LABS DocDerr ELRX-H - 500 Series - Multi-Purpose Tone Module (Horizontal Version)
  • Limited 3-Year Warranty
Frequency Response 3 Hz to 180 kHz on EQ section (-3 dB points)
Dynamic Range -120 dB from maximum output (0.5% THD soft clipping) to minimum output, noise floor typically -91 dBu
Distortion Range 0.0006 and 12% at 1 kHz
Outputs DC coupled
Input Impedance 120 kOhms in instrument mode, 20 kOhms in balanced line in mode
Output Impedance 75 ohms
Maximum Output +28 dBm
Maximum Input Before Clipping +22 dBm, line in mode
Attack Time 1 mS
Release Time 0.2 seconds, program dependent, fixed internally
Power Consumption Typical: 2 W
Maximum: 4 W
Power Supplies 16 V
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78697978297

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Robyn
Natrona Heights, US
★★★★★ 5
Perfectly Practical and Stylish!
Color: A-silver
This product does exactly what the description promises—and more! The silver metal caddy is not only sturdy and well-made, but it also keeps all of my items neatly organized and easily accessible. I love how sleek and modern it looks on my countertop. The design is thoughtful, with no water leaking from the bottom, and the slide-out tray collects any runoff, making it super easy to clean. It holds a surprising amount of items, including my dish soap dispenser, without feeling cluttered. For the price, this caddy offers fantastic value. I’m beyond happy with this purchase—it’s a game-changer for keeping my kitchen tidy!
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Reviewed in the United States on March 26, 2025
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Annie Adragna
Carnegie, US
★★★★★ 5
Less mess, more style!
Color: Gold, Color: Gold
So happy with this purchase! I was a tiny bit wary buying an item without any reviews yet, however I saw that the other caddies from this brand all had many positive reviews and seemed to be good quality. The diatomaceous earth base of this caddy elevated this option to me, so I went for it. I've had it out for a few days and am extremely happy that I went with this option! It absorbs water super quickly, so there are no more rings and residue left on the top of my sink, and it makes my countertop look that much more cute and put-together. Heads up it is a little deep compared to some other trays/caddies; I knew this ahead of time so planned to put it directly to the side of my sink so that it did not overlap. I think the size is worth it, since it accommodates about 2 soap products and has plenty of adjustable room for bottle brushes, sponges, drain stoppers, and whatever other items you need. Overall, I highly recommend!
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Reviewed in the United States on August 3, 2025
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Kayla Forristall
Phoenix, US
★★★★★ 5
Sturdy and does the job well.
Color: Black
Very stable. Have a narrow ledge on my sink and it balances great without falling. Holds all my sponges and brushes and dish soap. Hasn’t rusted and I’ve had it for a while now. Looks nice on my sink. Keeps my counters dry and my sponges mold free.
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Reviewed in the United States on January 11, 2026
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Steve C.
Pawtucket, US
★★★★★ 5
Buy it you'll love it. You'll realize that you really needed it
Color: Black
Size is perfect for rag, scrubber sponges soap. It's very sturdy love that the block on bottom dryies up all the liquid it's absolutely amazing. It's very convenient, love the way you can organize everything. I'm the kind of person I have to have everything organized that's the way I grew up. I have not seen any signs of rust no where. Highly recommend. It is very very nice.
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BeaLeti
Houston, US
★★★★★ 4
Funcional but smaller than I thought
Color: B-silver
I liked it and it replaces something around the kitchen sink that was constantly dripping liquid soap dish into the sink making a mess! This new organizes items much better. It's smaller than I envisioned and wish it came with it's own soap bottles dispensers but I found two small ones placing them side by side and it works. Did not use the metal divider. I cannot tell yet the drying speed of the sliding out stone. It's functional at keeping everything hands reach and organized around the kitchen sink.
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