Source Audio EQ2 Programmable EQ review

Take a hi-tech approach to EQ with a typically tricked-out stompbox from Source Audio

Source Audio EQ2
(Image: © Source Audio)

Guitar World Verdict

Highly detailed sound sculpting makes this a consummate stage tool.


  • +

    Selectable 10-band EQ with +/-18dB of boost or cut

  • +

    Split output increases your routing options.

  • +

    128 onboard preset slots.


  • -

    Need the app to access full capability.

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Source Audio's EQ2 Programmable EQ pedal is part of its One series pedals range. Each stompbox in the series supports both stereo and mono operation and features a Control Input jack for the Source Audio Dual Expression Pedal and a USB port. 

These digital pedals have 128 onboard preset slots and loads of capability, with knobs for tweaking, some of which have an alternate function initiated by a rear-panel switch.

To really dig deep, you need to take advantage of the Neuro graphical editing and librarian software: a mobile app for all iOS and Android devices (cabled connection) and a desktop version for Mac and Windows. 

As well as unlocking pedal features, it offers access to effect editing parameters, stereo routing options and advanced EQ control, plus pedal preset management (archiving your own and downloading factory and user community presets).

Source Audio EQ2

(Image credit: Future)

The EQ2 is a combination graphic and parametric equalizer with 10 fully adjustable frequency bands. Each band can be moved to any point on the frequency spectrum from 20Hz to 20kHz and has up to +/-18dB of boost or cut available with adjustable bandwidth.

There’s also some shelving and high-pass options, noise gate, limiter and tuner. The pedal has four presets instantly at hand, scrolled through via a front-panel button, although all 128 of them can be recalled directly from the pedal.

Besides a small Output knob, there’s just a rotary encoder knob with push and turn actions that works extremely well to quickly dial in an EQ curve on the fly. But with the Neuro app you can really get in and map out your EQ curve in detail.

Whether you need to set your rig for a venue, have different EQ settings to suit particular guitars, or just kick it in as a frequency boost, it’s all here.


  • PRICE: $269 / £285
  • TYPE: Programmable EQ pedal
  • FEATURES: Selectable analog buffered or relay based true bypass, tuner, 128 presets,
  • parametric 10 band graphic equalizer, equalization capabilities, 
  • CONTROLS: Bypass footswitch,Encoder knob, Output, Select button, control input switch
  • CONNECTIONS: MIDI Thru, USB, control input, Standard inputs (1 & 2),
  • standard outputs (1 & 2), MIDI In
  • POWER: 9V DC adaptor (supplied) 180 mA
  • DIMENSIONS: 70 (w) x 114 (d) x 51mm (h)
  • CONTACT: Source Audio

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Trevor Curwen

Trevor Curwen has played guitar for several decades – he's also mimed it on the UK's Top of the Pops. Much of his working life, though, has been spent behind the mixing desk, during which time he has built up a solid collection of the guitars, amps and pedals needed to cover just about any studio session. He writes pedal reviews for Guitarist and has contributed to Total Guitar, MusicRadar and Future Music among others.