JDK Audio R24

Dual-channel 4-band Equalizer with Continuously Variable Frequency and Gain, 12dB Cut/Boost Per Band, and EQ In/Out Switch
JDK Audio R24 image 1
JDK Audio R24 image 1
Sweetwater Savings: $96.00 MSRP: $1,195.00
Special Order
Special-ordered from JDK Audio and usually arrives to you within 1-2 weeks. Please note: special orders cannot be canceled or returned.
Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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JDK Audio R24
Special Order

A Rugged EQ for Your Rack!

With the JDK Audio R24, you've got a high-quality dual-channel 4-band parametric equalizer to command. Modeled after the circuitry of classic, elite EQs, the JDK Audio R24 has separate control knobs, giving you control of frequency selection and boost/cut. The JDK Audio R24 is ready for your critical studio needs.

JDK Audio R24 Dual-channel 4-band Equalizer at a Glance:
  • Premium-grade, dual-channel 4-band equalizer

Premium-grade 4-band equalizer
JDK Audio's R24 offers two channels of professional signal equalization in a 2U rackmountable format. Modeled after the circuitry of classic high-end EQs, the R24 delivers an affordable combination of rugged construction and solid performance. The JDK Audio's EQ in and out are controlled by classic toggle switches, with gain and frequency selection accessed using individual control knobs.

JDK Audio R24 Dual-channel 4-band Equalizer Features:
  • 2U rackmountable
  • 4 bands of equalization modeled after the classic APSI model 562 EQ
  • Each band offers continuously variable control of frequency and gain
  • 12dB of boost/cut per band
  • All 4 bands are peak/dipping parametric configuration
  • Custom transformer balanced output
  • Fully balanced 1/4" and XLR input and output
  • High headroom +24dB clip level
JDK Audio R24 Dual-channel 4-band Equalizer Specifications:
  • Inputs:Balanced XLR and 1/4" parallel jacks
  • Outputs:Transformer Balanced XLR and 1/4" parallel jacks
  • (All measurements with 600 Ohm output load)
  • Bandwidth:+/- 0.5db, 20Hz — 20kHz
  • THD+N at 1kHz, +4dbu: 0.01%
  • Maximum Level: +23dbu
  • Signal-to-Noise Ratio: -100db
  • EQ Bands: 4 bands, all +/-12db Peak/Dip type
  • Lo: 20Hz — 200Hz
  • Lo-Mid: 100Hz — 1kHz
  • Hi-Mid:500Hz — 5kHz
  • Hi:2kHz — 20kHz
  • Current:65mA, 7.3VoltAmps
  • Dimensions: 2U EIA 19" Rack
  • Height:3.5"
  • Width: 19"
  • Depth: 10"
  • Weight: 13 lbs.
  • Input Impedance: 12K Ohms
  • Output Impedance: 300 Ohms Transformer Balanced
The JDK Audio R24 is a premium dual-channel, 4-band equalizer!

What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Additional Media

R24 User Manual
Signal Processing Buying Guide

Tech Specs

Number of Channels 2
Bypass Yes
Inputs 2 x XLR
Outputs 2 x XLR
Number of Bands 4
Q Type Fixed
Boost/Cut Range ±12
Frequency Response 20Hz-20kHz (±0.5dB)
Freq Range High 2kHz-20kHz
Freq Range Hi-Mid 0.5kHz-5kHz
Freq Range Lo-Mid 100Hz-1000Hz
Freq Range Low 20Hz-200Hz
Rack Spaces 2U
Height 3.5"
Depth 10"
Width 19"
Weight 13 lbs.
Manufacturer Part Number R24

Customer Reviews

Based on 7 reviews
Write your review

Do yourself a favor, Buy an R24 !

I bought my first R24 a few months ago. It has changer my mixes. I use it on my Mix Bus when everything is mixed. It works really well and is very subtle and musical. I love the top end ! it opens up the field. I just bough a second one i like it so much ! I own vintage API560, 550a, 550b, UREI EQs, etc... This baby rocks and gives me a different tone. I just love it. I've even used it on some mastering jobs. It worked great with my C2 Smart. It is NOT a surgical EQ ! But it's a good enhancer. The top end sounds so much more musical than any plugin, Hardware EQ is where it's at ! IMHO it's worth every penny.
Music background: Recording engineer, pro Musician, 30 year experience.

Mastering EQ

Great Eq for mastering . It is the polish to a master . Final Eq coat. Nice Low end to it and hi End .
Music background: Mixing&Mastering

Fantastic Equalizer

I just got it 2 weeks ago and using it with my MBox Pro 3rd Generation, for recording acoustic guitar mostly. Extremely clean, not coloration on the sound and it can be very addictive. With this Eq i can get the sound that inspire me to play better and specially like the idea of getting the right sound from the beginning. Love the high frequencies, very pleasant sound. I am using it as a insert with my sound card, have not try yet other ways. Soon I wil be getting the JDK compressor . Thanks to Sweetwater staff for helping and guiding me to get the right gear.
Music background: Pro musician and educator.

scary good for $1000

Picked this EQ up at Gearfest this year because it had 4 bands and the ties to API. Didn't know what to expect but I when got home and hooked this up I was beyond impressed. Not going to name drop but I shot this EQ out against a very popular $2500 EQ and the JDK destroyed. Even running the EQ flat added punch and presence, where the other EQ sounded dull. I used this on drum buss, vocals, and mix buss. Love this EQ
Music background: mix and recording engineer


I love this EQ! Bought a demo of it in the deal zone the moment it popped up. Evening running things through it flat adds warmth and presence. I shot this against a 550a which seemed cold. The R24 boosts mids and high beautifully without a hint of harshness. It's awesome on Overheads. I gave it 4.5 because there's no HPF and boasting the lows doesn't have the effect I had hoped for. Overall this eq is more then worth the money and brings a mojo to my tracks that wasn't there before. I will be buying their stereo comp next.
Music background: Musican, Engineer, Mixer
See also: JDK Audio, JDK Audio Parametric EQ, JDK Audio Parametric EQ