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Diamond Guitar Pedals Bass Comp/EQ Optical Compressor/EQ Pedal

SKU: # 784875   |   Model: # BASS COMP/EQ   |    Product Reviews1 Reviews  Write a Review

Bass Comp/EQ Optical Compressor/EQ Pedal

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Bass Comp/EQ Optical Compressor/EQ Pedal
Bass Comp/EQ Optical Compressor/EQ Pedal
Your Price: $315.00 CDN
or from $33 CDN/mo
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Sought out by musicians for almost two decades, the Diamond Compressor is the magical yellow box that started it all. This next generation Diamond Comp|EQ maintains the classic circuit architecture while increasing range and functionality. In addition to providing compression, the Diamond Comp|EQ is armed with their classic Tilt-EQ tone control and an active Mid Boost|Cut circuit set at the Tilt's center frequency. A new Attack toggle provides the original Diamond snappy response or a softer, more transparent compressor feel.

Place the COMP|EQ either as the first pedal in your effect chain or very close to first for a traditional compression effects. Place it at the end of your chain and the COMP|EQ will act as a limiter. The COMP/EQ can also be used as a boost or tone shaping tool placed before or after drives & fuzzes with the COMP knob turned down low. Use it to even out your tone, add sustain, increase gain or carefully sculpt and EQ your signal. The Diamond COMP|EQ is the perfect mastering solution for your pedalboard.

Main Features

• Naturally smooth optical compression from a custom US-made Opto-Isolator
• Mid boost and cut
• Switchable Tilt EQ Fulcrum Frequency covering 250, 500 & 900 Hz +|- 6dB
• Wide-ranging compression control and attack switch with LED indicator
• Top-mounted jacks and soft touch relay switching
• Burr Brown Integrated circuits


Input Impedance: > 1MΩ
Output Impedance: < 10KΩ
Switching: Relay True Bypass
Power Requirement: 9-18 VDC , negative tip, 2.1 mm barrel jack
Current Draw @ 9 VDC: 22mA
Tilt EQ Fulcrum Frequency: 250 / 500 / 900 Hz +|- 6 dB
Mid EQ Center Frequency: 800 Hz +|- 10 dB
Dimensions: 122 x 66.98 x 39.64mm (4.8 x 2.64 x 1.58")
Weight: 280 g
Made in Canada

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CCBot/2.0 (
Original take on compression and eq 1 of 1 customers found this review helpful
Product Experience   I own it
Closest Store   Montréal, Quebec
Fascinating and beautiful little pedal. Not the fanciest compressor, but does anyone need ten compression controls? Not the most technical eq preamp either, but I don’t want a row of parametric eq dials with one needle-in-a-haystack sweet spot setting somewhere. With the Diamond, close your eyes, scramble the four controls, and let a warm and cozy tone permeate everything.
Posted by Robert S. on Jul 22, 2023
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Protect your investment with the Long & McQuade Performance Warranty

A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.

Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.

How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
  • Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
  • Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
  • No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
  • Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
  • Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
  • Loaners Available: A loaner product may be given while the product is being repaired.
  • Power Surge Protection: Your product is covered even if damaged from a power surge.
  • Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
  • Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.

Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.

Purchasing additional years of coverage

Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.

If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:

  • NEW products: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.
  • USED products: 4% of the current new selling price to increase the warranty from 3 months to 1 year. 4% for each additional year.
  • GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
  • BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.

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