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A Designs HM2EQ HAMMER Tube Stereo EQ - Used  From A Designs

Dual Mono Three Band Tube EQ that works everywhere from tracking to your 2 Bus


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A Designs Hammer EQ on Guitar

The A Designs Hammer Tube EQ is put through its paces on a variety of Acoustic and Electric Guitars. While there is no perfect way to EQ, and EQ is always contextual, the Hammer nevertheless displays an impressive array of tonal and color shifts that dont over-impose its own color. The boxes broad, musical strokes aid these guitars whether in isolation, or placed in a dense mix. Sound Pure Sales and Recording experts remain available to help you make your recordings better, and help with your next gear purchase. Please dont hesitate to visit our website, send us an e-mail or give us a call toll free 888-528-9703.

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    • A Designs HM2EQ HAMMER Tube Stereo EQ

Manufacturer's Description from A Designs

A world-class equalizer designed with functions and sound quality found on expensive mastering EQs

The award-winning A-Designs Audio HM2EQ “Hammer” is a dual-mono, three-band equalizer that absolutely sparkles on the 2-bus. It’s one of a very select few audio tools that breathe the rarified air of enhancing sound simply by running signal through it—thanks in part to an ingenious filtering system that passes the consonant and musical 2nd order tube harmonics while eliminating unwanted noise—just the heating blanket your DAW needs for those cold winter nights. And speaking of rarified air, adding “air” to vocals, instruments, or an overall mix is where the Hammer particularly shines. Yet another result of its innovative design is the ability to bring the Hammer down as hard as you like—it’s near impossible to make it sound bad.

Each channel of the Hammer features six rotary controls: three gain knobs with continuously variable boost or cut of 12dB, and three frequency-selector knobs detented for easy recall. The Hammer’s selectable frequencies range from 30Hz to 15kHz. The low, mid, and high bands have a selectable center frequency, and the bands themselves overlap in such a way that makes for a very smooth transition throughout the entire frequency spectrum. Also on each channel are toggle switches for EQ In/Out, plus low-cut (84Hz) and high-cut (8kHZ), filters, which allow the engineer to perform utilitarian EQ chores while still being able to bring the full power of The Hammer’s three bands to bear. Bandwidth (Q) is self-adjusting (floating) based on both the amount of gain applied and in response to the behavior of the program material at the selected frequencies. The Hammer’s unique ability to have its Q “move with the music” is one the secrets to its highly musical response, and also a reason for why its near impossible to make the Hammer sound bad at any frequency or gain setting.

Like its twin, the A-Designs Audio HM2 Compressor “Nail,” the Hammer boasts a black, custom-milled, brushed faceplate, which plays host to its custom-milled aluminum control knobs; big, blue jewel power indicator lamp; and heavy-duty Carling toggle power switch—overall, a stunning combination of modern-retro looks that jump out of the rack.

Not just another pretty face, it’s what’s inside the Hammer that counts, which, along with its clever tube-harmonic filtering circuit, are two transformer-less 12AT7 tubes (offering the most consistent control of any tube), and a custom toroidal power transformer. But most importantly, the Hammer is an inspired design whose sonic majesty is far greater than the sum of its components. As producer-mixer Ronan Chris Murphy (King Crimson, Terry Bozio) says, “The Hammer is all about gorgeous, smooth top and high mids. I am just not used to being able crank the top on the rock cymbals so much and have them stay so smooth. Another engineer I really respect described the HM2EQ as “the best EQ” he had ever used . . .”

Not just for the 2-bus, the Hammer’s dual-mono operation makes it a marvelous tool for tracking as well. Whether it’s 2-bus, submix, voice, or instrument, just reach for the A-Designs Audio HMEQ2 Hammer when you want great sounds—and you want them quickly and easily.


• World-class, three-band, dual-mono tube/hybrid equalizer
• Designed to sound highly musical for larger EQ functions typically found on expensive mastering
• Smooth, super-fidelity EQ, suitable for very high-end applications
• Beautiful-sounding broad EQ-shaping across several octaves with no adverse effect on tone
• Clean and airy high end
• Warmth, transparency, and quality sound.
• Continuously variable boost and cut controls
• Fixed frequency settings with highly musical overlapping bands and floating “Q”
• Low-cut and high-cut filters and bypass
• Transformer-less 12AT output tubes
• Custom-milled aluminum knobs and faceplate with EQ in/out, low-cut, and high-cut toggle switches
• Heavy-duty Carling power toggle switch

A Designs Audio

About Manufacturer

The A Designs objective is to provide effective extraordinary-sounding solutions with solid technology. They are quickly becoming one of the most respected boutique manufacturers of audio and production tools, at a reasonable price. A Designs Audio brings a combined total of over 60 years in engineering, marketing and sales/customer service experience. Now our firm brings you pro audio technology that is among the best in the business at affordable prices. Their product lines are field tested by professionals in "real-world" working environments and are put through rigorous tests. This assures the dependability and reliability you require in installations and working environments. They understand the demands placed upon you when providing installations or giving live performances. The last thing you should worry about is the extremely high costs of conducting business. There are other factors that make your work highly demanding. The bottom line is that A Designs provides the tools you need for a job well done....and within budget!



• Frequency Response: -3dB points @ 5Hz and 40kHz
• Noise Floor -94dbm with 30kHz bandwidth
• Low boost: +12dB; cut: -12dB
• Mid boost: +12dB; cut: -12dB
• High boost: +12dB; cut: -12dB
• Low-frequency switch: 30Hz/50Hz/100Hz/200Hz/300Hz/400Hz
• Mid-frequency switch: 250Hz/500Hz/1.2kHz/1.6kHz/2kHz
• High-frequency switch 2.5kHz/3.5kHz/5kHz/7.5kHz/10kHz/15kHz
• Low-cut filter: 84Hz
• High-cut filter: 8kHz
• Bandwidth (Q): Floating
• Distortion +4dBm
• Power Requirements: 120/230 VAC – 42W
• Dimensions (W x H x D) 19″ x 3-1/2″ x 10″
• Weight 10 lb. (Shipping weight 12 lb.)