EMPIRICAL LABS DerrEsser ELDS-V 500-Series Dynamic High-Frequency Fixer (Vertical Version)
SKU: 29978387129

EMPIRICAL LABS DerrEsser ELDS-V 500-Series Dynamic High-Frequency Fixer (Vertical Version)

Sale price$35781.75 Regular price$39757.50
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Description

EMPIRICAL LABS DerrEsser ELDS-V 500-Series Dynamic High-Frequency Fixer (Vertical Version)High Performance Desser High Frequency Limiting Hard Clip Indiator True Bypass Military Grade Switches and Relays Hand Built and Calibrated in the USA The DerrEsser ELDS V from Empirical Labs is a vertical multi function dynamic filtering device, designed for API 500 Series enclosures. In its basic DS mode, it is an effective, level insensitive de esser, a device that will adjust the high frequency gain on overly treble y or spiky vocals or other

  • High-Performance Desser
  • High-Frequency Limiting
  • Hard-Clip Indiator
  • True Bypass
  • Military-Grade Switches and Relays
  • Hand-Built and Calibrated in the USA

The DerrEsser ELDS-V from Empirical Labs is a vertical multi-function dynamic filtering device, designed for API 500-Series enclosures. In its basic DS mode, it is an effective, level-insensitive de-esser, a device that will adjust the high-frequency gain on overly treble-y or spiky vocals or other sources in an extremely musical manner. However, unlike other de-essers, the device allows for multiple uses of its circuitry. As a de-esser in the DS mode (HF Limit OFF), the threshold can be set to tame harsh S's (sibilants) that result from an overly bright singer or from EQ'ing to make a vocal sound aggressive and clear. The DS threshold is not level dependant, and compares the amount of high-frequency content to the low-frequency content, so adjusting the overall level does not affect the threshold. It features VCA technology for glitch-free, distortion-free, and noise-free performance. The corner frequency is user adjustable with a high-performance active crossover.

In HF Limit mode, the DerrEsser essentially acts as a high-frequency compressor. If there is enough high-frequency content to exceed the threshold, then gain reduction occurs. It is level sensitive, but responds much more to high frequencies. This mode is more of a general high-frequency smoothing device. In high-pass mode and while using the LISTEN function, the user can employ the filter circuitry inside the DerrEsser to process their audio. With the LISTEN button in, and the HP/LP switch out, the user will be hearing the high frequencies that are being controlled with the dynamic/compression circuits. The corner frequency is adjustable with the frequency knob. In low-pass mode and with the LISTEN button in, and the HP/LP button in, the user is now listening to the low frequencies, those not affected by the VCA and dynamic/compression circuits. This is a 12 dB-per-octave filter whose corner frequency can again be adjusted with the frequency knob.

  • High-frequency limiting with a tailored soft knee. The Dynamic Section can be used for de-essing or smooth high-frequency softening
  • Hard-Clip Indicator Light: This Bad-Clip LED indicates when the sound level is within 1 dB of hard clipping and monitors several sections within the DerrEsser for possible clipping
  • Unity Gain: 6 dB of gain on inputs and outputs available
  • API-500 Series rack compatible
  • True bypass
  • Military-grade switches and relays

UPC: 855013006064
In the Box
EMPIRICAL LABS DerrEsser ELDS-V 500-Series Dynamic High-Frequency Fixer (Vertical Version)
  • Limited 3-Year Warranty
Frequency Response 3 Hz to 120 kHz (-3 dB points)
Dynamic Range -115 dB from maximum output (0.5% THD soft clipping) to minimum output, noise floor typically -93 dBu
Distortion Range 0.0035 and .01%
Outputs DC coupled
Input Impedance 20 kohms
Output Impedance 51 ohms
Attack Time < 1 ms
Release Time 0.04 seconds, fixed internally
Power Consumption Typical: 4 W
Maximum: 8 W
Packaging Info
Package Weight 0.85 lb
Box Dimensions (LxWxH) 10.3 x 7.0 x 3.0"
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: 29978387129

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Delores Whitehead
Carnegie, US
★★★★★ 5
Nothing wrong. Stands are just to large for my tables!
Size: 1-Piece, Color: Black
I want you to know that there is nothing wrong with product. It is way too big for my table. I just need to return both stands for a refund. Thank you so much.
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Reviewed in the United States on May 19, 2026
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SS2345
Boise, US
★★★★★ 1
Avoid at all costs. Rusty and not stable. Confusing customer service.
Size: 1-Piece, Color: Black, Size: 1-Piece, Color: Black
Do not buy!!! Cheap product and bad customer service! The product is rusted upon delivery. It is not stable and will not hold an umbrella rated for 22lb stand upright with water alone. They wanted me to refill the stand and send them pictures of the tilt even though the rust should warrant a full refund with shipping covered, if they were a good company. The company is giving me the run around on a return and conflicting information. They said they I would have to pay for the return, then that they would, then and try keep trying to offer me a discounted rate and charging me shipping. Here is a copy of the communication. They offered $10 telling me that rust is not covered in their warranty, even if it arrived rusty! First message: "After the returned item is delivered to our warehouse with no issue, we will return your amount." Second message: "Generally, rust can be caused by many factors and is not typically covered under our warranty. However, as a valued customer, we’d like to offer you a USD 10 price return if you choose to keep and continue using the base as it is. Please let us know if this solution works for you, and we will process it right away."
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Reviewed in the United States on September 5, 2025
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Tempest
Lowell, US
★★★★★ 5
Cost Effective Good Weighted Base
Size: 1-Piece, Color: Black, Size: 1-Piece, Color: Black
Strong metal pole to hold the umbrella and thick plastic base that feels very well made. Very simple to put together with the provided allen-wrench, just took time to make sure it was very tight. Got it for my neighbor's umbrella. Make sure you have it where you want it before filling it. It is unfilled at the moment and yet still has helped the umbrella stay stable. I like the look of it and that it can be used with or without a table. I really like the idea that if you have another long pole items that it can be used for those as well. The double lock design is a nice feature. Inexpensive.
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Reviewed in the United States on December 18, 2025
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Lisa
West Palm Beach, US
★★★★★ 5
Purple Purple!!
Size: 9ft, Color: Dark Purple, Size: 9ft, Color: Dark Purple
Looks great!! I would say the color is like Crayola marker purple. It was easy to assemble straight out of the box. And a perfect size for my six person patio table. The weight of the fabric seems of high-quality and thickness. I would recommend as it seems to be a good value for the price point..
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Reviewed in the United States on May 27, 2026
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swotr
Lowell, US
★★★★★ 5
Great value!
Size: 9ft, Color: Dark Blue
This is a bargain for the price. Thus umbrella is well made and has a very nice fabric. It came package well and was exceptionally easy to assemble. The had crank works well and operates very smoothly. The color is vibrant and I would certainly buy this again. I'm very happy with this purchase.
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Reviewed in the United States on May 27, 2026

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