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Origin Effects has completed a trilogy of what are arguably the three most cloned and modified overdrive pedals.

First, we saw the Halcyon Green Overdrive based on a Tube Screamer, then came the Klon-based Halcyon Gold Overdrive, and now here's the Halcyon Blue Overdrive, inspired by the early '90s Marshall Bluesbreaker pedal.

However, these aren't mere clones. In fact, Origin has expanded the tonal options with a toggle-switched choice of an authentic original voicing or a modified one, plus a user-variable amount of dry sound as a component of the signal, and the company's Adaptive Circuitry with its neat trick of automatically adjusting voicing in response to pick attack and volume changes.

Setting the pedal to its BB voicing and utilising the Level, Drive and Tone knobs as found on the original Bluesbreaker yields a range of tones that completely matches the original's, with a nice lift in the midrange, delivering enhanced 'beyond clean' boosts right through to a lovely textured drive.

For variation, we have the Dry knob, which is not a control that mixes your dry signal in proportion to the drive; it actually sets the amount of passed-through unaffected dry signal that's always been a component part of Bluesbreaker circuitry.

At its noon position, the knob mimics the Bluesbreaker entirely, but you can use it to increase the amount of dry signal or reduce/remove it from the signal. It's a subtle control, but it does make a difference. We particularly like the dynamic feel and the touch of extra clarity that comes with a bit more dry sound.

A less subtle deviation from the classic BB sound - although still in the same ballpark - is the Mod voicing, which offers a different diode clipping characteristic with more gain and a fatter sound.

All of this can be delivered via the Adapt Circuitry, which cleans up your tone by reducing midrange emphasis when playing more softly or with your guitar volume knob turned down.

The tonal differences between the Off setting and the two levels of Adaptive behaviour are there to be exploited - find which best suits you.

The Halcyon Blue is a more sophisticated version of a Bluesbreaker pedal. So if you like that sound but want it delivered with practical variations and enhancements in a compact, solidly engineered pedal, then this is for you.