DryBell Unit67 review

A 1176-style compressor, boost, and a tweakable EQ makes for a powerful all-in-one tone sweetener

Drybell Unit67
(Image: © Drybell)

Guitar World Verdict

The DryBell Unit67 delivers high-quality EQ, true 1176 compression and classic Rangemaster-style treble boost to deliver studio-quality refined tones for less than the cost of separate boutique treble booster and compression pedals.


  • +

    All-in-one compression/boost/EQ saves pedalboard real estate.

  • +

    Studio-quality tones.

  • +

    Good value.

  • +

    Oversized boost dial.


  • -

    Mini-knobs might be fiddly for some.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

The key to getting great live guitar tone is by following a similar approach to what an engineer does in the recording studio: using a high-pass filter to cut excess bass, adjusting key EQ frequencies and applying high-quality transparent compression to tighten up the overall sound and bring it forward in the mix. 

By combining a Rangemaster-style treble booster, versatile EQ section and compression based on the revered Urei/Universal Audio 1176 compressor/limiter, the DryBell Unit67 provides the sweetening functions of expensive studio processing gear in a compact, stage-worthy stomp box format.    


Because the DryBell Unit67’s boost/range, EQ and compression sections are highly interactive, the pedal is considerably more versatile than using separate treble booster, EQ and compressor effects.

The top control panel is simple and self-explanatory, featuring a large Boost knob, four mini pots for Range, Low, High and Sustain and two mini toggle switches for EQ on/off and High/Low input level.

The Boost knob adjusts gain from -7 to +22.4dB; Range adjusts a midrange sweet spot between 1 to 2kHz; Low boosts or cuts low frequencies by -15.8 to +9.3dB; High boosts or cuts high frequencies by -13.2 to +7.2dB; and Sustain dials in the mix of dry and compressed signals.

Bypass is buffered with a high-headroom, ultra-low noise circuit to consistently maintain signal quality. The pedal operates with a 9- to 18-volt DC power supply.


While the Unit67’s effects on a guitar’s tone are distinct and notable, they do not drastically alter your rig’s personality but rather bring out its best attributes.

The Boost control provides a clean boost function, but it subtly rolls off treble and bass at higher settings to avoid harsh overtones, producing rich overdrive devoid of nasty sizzle and clarity-killing woof.

Drybell Unit67

(Image credit: DryBell)

The Range and EQ controls sculpt and sweeten the tone while also maintaining a consistent balance across the guitar’s entire note range.

For example, as the midrange is boosted the sound does not become narrower but rather more present and lively, with a more assertive and prominent voice that still allows bass and treble notes to be heard clearly.

The Sustain control consistently maintains the clarity of pick attack, providing dazzling transparent compression that can be dialed in for smooth, seemingly endless sustain or dynamic percussive effects where notes fade more quickly but remain tantalizingly fat.

These are the kind of tones that used to require an investment in thousands of dollars of studio equipment plus years of know-how to dial in, all wrapped up in a compact, easy-to-use and sensibly priced pedal.


  • PRICE: $289
  • ORIGIN: Croatia
  • TYPE: Compression with treble boost, EQ
  • FEATURES: Buffered bypass
  • CONTROLS: Boost Output, Range, Low, High, Sustain, EQ switch, Hi/Lo switch
  • CONNECTIONS: Standard input, standard output
  • POWER: 9V-18V DC adaptor (not supplied) 
  • CONTACT: DryBell

Thank you for reading 5 articles this month**

Join now for unlimited access

US pricing $3.99 per month or $39.00 per year

UK pricing £2.99 per month or £29.00 per year 

Europe pricing €3.49 per month or €34.00 per year

*Read 5 free articles per month without a subscription

Join now for unlimited access

Prices from £2.99/$3.99/€3.49

Chris Gill

Chris is the co-author of Eruption - Conversations with Eddie Van Halen. He is a 40-year music industry veteran who started at Boardwalk Entertainment (Joan Jett, Night Ranger) and Roland US before becoming a guitar journalist in 1991. He has interviewed more than 600 artists, written more than 1,400 product reviews and contributed to Jeff Beck’s Beck 01: Hot Rods and Rock & Roll and Eric Clapton’s Six String Stories.