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User Manual for EMPIRICAL LABS DerrEsser EL-DS PLUS 500-Series Dynamic High-Frequency Fixer Click to enlarge the picture
Contents of the user manual for the EMPIRICAL LABS DerrEsser EL-DS PLUS 500-Series
- Product category: 500 Series EMPIRICAL LABS
- Brand: EMPIRICAL LABS
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for EMPIRICAL LABS 500 Series
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User manual for the EMPIRICAL LABS DerrEsser EL-DS PLUS 500-Series contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any EMPIRICAL LABS product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official EMPIRICAL LABS user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a EMPIRICAL LABS product will considerably shorten its lifespan!
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Product description 500 Series: Guide to Effects Read More The DerrEsser EL-DS PLUS from Empirical Labs is a horizontal multi-function dynamic filtering device preinstalled in the EL500 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 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.
The EL500 rack features a quiet power supply and offers both XLR and phone rear-panel inputs and outputs. In addition, a 1/4" 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. Switches to link compressors and engage a 48V phantom supply are also provided. -
- 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
- EL500 Rack
• Flush-mount system
• Quiet 16V supplies
• More than 280 mA available on both supplies
• 48V phantom supply, 35 mA of current
• Link switch to stereo link two compressors
• Auto-sense on Inst In jack with less than .0006% THD
• XLR and phone-plug inputs and outputs
In the Box EMPIRICAL LABS DerrEsser EL-DS PLUS 500-Series Dynamic High-Frequency Fixer (in EL500 Rack) Power Cord Limited 3-Year Warranty Table of Contents
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Technical parametersEMPIRICAL LABS DS PLUS Specs | 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 |
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