Pricing and availability
We compare 600+ stores and found this item at 5 stores. Prices updated .
Store
Reviews
Price
Average Price: $234
High-end/Boutique
$50
$201+
Price Tier
Budget
Standard
High-end
Price History
Based on price data from 2 merchants for "Diamond Comp/EQ". Prices shown reflect NEW condition. Tracking began Apr 3, 2026.
* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.
Description
Elevate your guitar tone with the Diamond COMP/EQ, a pedal that seamlessly blends classic compression with versatile EQ capabilities. This optical compressor maintains the signature charm of the Diamond circuit, offering both sharp, fast-response compression and softer, more transparent options with a simple flick of the attack switch. The integrated tilt EQ allows for intuitive tone sculpting, letting you shape your sound with ease, while the mid-range boost/cut control provides an additional layer of tonal versatility.
Crafted with precision, the Diamond COMP/EQ features custom spec'd, US-made opto-isolators for that silky smooth compression, and a Burr-Brown audio path for unparalleled sound fidelity. This pedal is designed for the discerning musician who demands high-quality sound without sacrificing pedalboard space. With its sleek, space-saving design and top-mounted jacks, it fits seamlessly into any setup. True to its roots, the Diamond COMP/EQ ensures a pristine signal path with relay-based true bypass switching.
Whether you're looking to add subtle warmth or a punchy presence to your sound, the Diamond COMP/EQ delivers with precision and style. Made in Canada, this pedal is a testament to quality craftsmanship and innovative engineering, perfect for modern guitarists seeking a reliable and versatile effects solution.
Key Features:
- Optical compressor with tilt EQ
- Classic Diamond circuit
- Two attack settings: sharp and transparent compression
- Mid-range boost/cut control of +/- 10 dB
- Burr-Brown audio path
- Relay-based true bypass
- Top-mounted jacks
- Made in Canada
- Power supply via 9-18 V DC (not included)
Product specs
| Available since | May 2023 |
| Effect Types | Compressor |
FAQs
-
What type of compression does the Diamond COMP/EQ pedal offer?
-
The Diamond COMP/EQ pedal provides optical compression, known for its smooth and natural response, making it ideal for both subtle dynamic control and more pronounced effects.
-
How does the EQ function work on the Diamond COMP/EQ pedal?
-
The EQ function on the Diamond COMP/EQ features a tilt EQ, allowing you to adjust the tonal balance by boosting highs and cutting lows or vice versa, offering versatile tone shaping.
-
Is the Diamond COMP/EQ pedal suitable for both electric and acoustic guitars?
-
Yes, the Diamond COMP/EQ pedal is designed to enhance the dynamics and tone of both electric and acoustic guitars, providing a versatile solution for various musical styles.
-
Does the Diamond COMP/EQ pedal require a specific power supply?
-
The Diamond COMP/EQ pedal operates on a standard 9V DC power supply, making it compatible with most pedalboard power solutions.
-
Can the Diamond COMP/EQ pedal be used in a bass guitar setup?
-
Yes, the Diamond COMP/EQ pedal can be effectively used with bass guitars, offering smooth compression and tonal shaping suitable for bass frequencies.
Videos
AndyDemos
Diamond Pedals Are Back and Compact!
Reviews
PROS
-
Enhances tone subtly, making it 10-15% better
-
Features powerful Tilt EQ for brightness or darkness adjustments
-
Mid-boost around 800 Hz complements transparent drives well
-
Provides smooth, transparent compression
-
Versatile use across different music genres
-
Maintains harmonics and overtones even after fuzz effects
CONS
-
Not the best choice for pronounced compression in funk or country music
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Diamond Comp/EQ.
User experience
-
Owners appreciate the Diamond Comp/EQ for its ability to "polish up" playing, especially beneficial for those new to using compressors.
Source -
Owners note running the pedal at 18V provides extra headroom beneficial for stronger signals like active pickups and boost pedals, enhancing the signal's clarity and presence.
Source
Comparisons
-
Previous users of the older Diamond Comp Jr. model noted potential noise issues, highlighting advancements in the newer Comp/EQ version.
Source -
The Tilt EQ is a notable addition in the Diamond Comp/EQ, providing flexibility depending on the guitar being used, which was not available in the original model.
Source
Use cases and applications
Features and functionality
-
The soft relay switch and separate mid control for EQ on the Diamond Comp/EQ offer enhanced user control over sound customization.
Source -
The adjustable attack feature allows users to switch between original and softer attack settings, catering to diverse playing styles and preferences.
Source -
The Comp/EQ can run at 9V or 18V, affecting headroom and dynamic range, with 18V offering tighter compression and transparency similar to older CP-1 and BCP-1 models.
Source -
The Comp/EQ supports experimentation with 12V or 15V input, allowing users to fine-tune headroom and compression characteristics.
Source
Build quality
-
Users appreciate the robust construction of the new Comp/EQ, indicating improvements over previous models in terms of durability and design.
Source
5.0 out of 5
Based on 2 Reviews and 2 Ratings
55
812
Superb
This compressor is spectacular! I’m a big fan of optical compressors and this one is simply the best of them. The compression is smooth and pretty much transparent, and the EQ works beautifully. I can place it after germanium fuzz faces without losing the harmonics and overtones.
Artist usage
Add artist
In a YouTube video by TheGigRig, Dan Steinhardt is shown building a pedalboard for Johnny Marr, where the Diamond COMP/EQ pedal is clearly visible. This pedal is an updated version of the Diamond CPR1, which Marr has been known to use alongside his signature Fender Jaguar.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Diamond Comp/EQ, it is most commonly used with the following gear.
Community setups
Show yoursSimilar
Add recommendation1 alternative for Diamond Comp/EQ, curated by the Equipboard community.
$195.00
More Diamond Compressor Effects Pedals
Gear Guides
Most Popular Compressor Effects Pedals
Most Popular Brands
-
Added to Equipboard on by
tomisferGear IQ 812
-