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A Designs HAMMER 2 Tube Stereo EQ  From A Designs

The Hammer 2 takes an already incredible broad stroke EQ and doubles down - more frequency points, shelving AND peaking options, all while still delivering the incredible tone we've grown to love from the original Hammer.

A Designs Audio


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What We Think

We've been a HUGE fan of the A-Designs Hammer for years. It's been a mainstay in Sound Pure Studios and a regularly recommended EQ for our customers. The hammer has a way of smoothing and adding a beautiful polish and shimmer to tracks just by passing audio through it. It's an incredible tool before you even start to dial in EQ, but the EQ is invaluable for broad stroke sweetening.


Now that A-Designs has released a Hammer 2, we've reached nirvana. The same incredible tone and finished sound as the original Hammer, but with more frequency selections on every band. Matching left and right EQ settings is a breeze with the Hammer 2.

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.

  • Signal Chain
    • A Designs HM2EQ HAMMER Tube Stereo EQ

Manufacturer's Description from A Designs

The HAMMER 2 couldn't be easier to use. Its overall frequency range covers 30Hz to 40kHz. Each channel features six detented rotary controls: three frequency selector knobs (Lo, Mid, Hi) which are stepped switches for easy recall, each with an accompanying gain knob providing continuously variable boost or cut of 12dB. Each band has a selectable center frequency, and overlaps with the other bands in such a way that makes for a seamless transition throughout the entire spectrum. Each channel also features individual toggle switches for EQ In/Out as well as Lo Cut (84Hz) and Hi Cut (8kHZ), filters that allow engineers to perform utilitarian EQ chores while still being able to bring the full power of The Hammer's three bands to bear.

Mainly intended as a "broad stroke" equalizer, the HM2EQ's bandwidth (Q) is self-adjusting (floating), based on a combination of the amount of gain applied and the dynamics and frequency content of the program material.The Hammer's unique ability to have its Q "move with the music" is one the keys to its incredible musical performance, and is another reason why it's difficult to make the Hammer sound bad at any frequency or gain setting. Along with its innovative tube-harmonic filtering circuit, a pair of carefully selected 12AT7 tubes (offering the most consistent control of any tube) and a custom heavy duty toroidal power transformer add the final touches to the Hammer's signal path.

Like its twin - the A-Designs "Nail" compressor - the Hammer features a black, custom-milled, brushed faceplate sporting custom-milled aluminum control knobs, a heavy-duty Carling toggle power switch, and a big blue jewel power indicator lamp- overall, a stunning combination of modern-retro looks that jump out of the rack. The Hammer is an inspired design whose sonic signature is far greater than the sum of its components. Perfectly happy in tracking applications or as an insert effect on individual channels, it is the ultimate full-range finishing device for sub-mixes and master outputs.  After all, what audio toolbox would be complete without a Hammer?


•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.

•Detened 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 12AT7 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/150Hz/200Hz/300Hz/400Hz/470Hz560Hz Shelving @ 30/60/125

•Mid-frequency switch:125Hz/175Hz/ 250Hz/500Hz/800Hz/1.2kHz/1.6kHz/2kHz/2.7kHz3.3kHz/3.9kHz/4.7kHz

•High-frequency switch1.8kHz/ 2.5kHz/3.5kHz/5kHz/7.5kHz/10kHz/15kHz/20kHz/40kHz Shelving @ 4.8k/12.5k/30k

•Low-cut filter: 84Hz

•High-cut filter: 8kHz •Bandwidth (Q): Floating

•Distortion THD> .08 @ 1Khz

•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.)