Category: Compression & EQ

Expand	Project Name	Based On	Effect Type	Difficulty	Price	Add to Cart
Expand	Aurora	Ross / Dyna Compressor	Compressor / Sustainer	Intermediate	$12.50	In stock Aurora quantity
	Documentation The original guitar compressor, still a favorite of guitarists after over 40 years. The Aurora makes several improvements to the original circuit as well as adding a few new features.
Expand	Aurora Deluxe	Keeley Compressor Plus	Compressor	Intermediate	$12.50	In stock Aurora Deluxe quantity
	Documentation An expanded version of the classic Keeley Compressor with an added clean blend, treble control, and output buffer.
Expand	Aurora Kit	Ross / Dyna Compressor	Compressor / Sustainer	Intermediate	$84.00	In stock Aurora Kit quantity
	Documentation The original guitar compressor, still a favorite of guitarists after over 40 years. The Aurora makes several improvements to the original circuit as well as adding a few new features.
Expand	Chroma	BOSS^® SP-1 Spectrum	Boost / Parametric EQ	Easy	$12.50	In stock Chroma quantity
	Documentation One of the rarest BOSS effects, a single-band swept-frequency EQ. Modified to boost the overall signal level so it can be used as a boost pedal if desired.
Expand	Convex	Dinosaural OTC-201	Compressor	Intermediate	$12.50	In stock Convex quantity
	Documentation An exceptionally rare and unique optical compressor designed by Dan Coggins of Lovetone fame.
Expand	Convex Kit	Dinosaural OTC-201	Compressor	Intermediate	$89.00	In stock Convex Kit quantity
	Documentation An exceptionally rare and unique optical compressor designed by Dan Coggins of Lovetone fame.
Expand	Lumin	BBE^® Sonic Maximizer	EQ / Sonic Enhancer	Easy	$12.50	In stock Lumin quantity
	Documentation A unique tone-shaping tool that allows you to enhance the clarity of your signal by phase-correcting the low, mid and high frequencies separately.
Expand	Lumin Kit	BBE^® Sonic Maximizer	EQ / Sonic Enhancer	Easy	$86.00	In stock Lumin Kit quantity
	Documentation A unique tone-shaping tool that allows you to enhance the clarity of your signal by phase-correcting the low, mid and high frequencies separately.
Expand	Meridian	Guyatone^® PS-021	Compressor / Frequency Enhancer	Intermediate	$12.50	In stock Meridian quantity
	Documentation A gem from the 1980s, this effect combines a Dyna-style compressor with an exciter that enables control over the even & odd harmonics.
Expand	Nomad	Engineer's Thumb	Compressor	Easy	$12.50	In stock Nomad quantity
	Documentation A full-featured yet surprisingly simple OTA-based compressor design that operates on a feed-forward principle for better performance and lower noise.
Expand	Oceanid	Cornish OC-1	Compressor	Intermediate	$12.50	In stock Oceanid quantity
	Documentation Pete Cornish's original optical compressor design features a clean blend and a complex side-chain for envelope detection along with his legendary input buffer.
Expand	Parsec	Systech Harmonic Energizer	Filter / EQ	Easy	$12.50	In stock Parsec quantity
	Documentation A frequency-variable filter and tone shaper notably used by Frank Zappa, Adrian Belew and others.
Expand	Polyphemus	Pigtronix Philosopher's Tone	Compressor / overdrive	Intermediate	$12.50	In stock Polyphemus quantity
	Documentation An inventive optical compressor noted for its long sustain and blendable overdrive, designed by Howard Davis, best known as the designer of the EHX Memory Man and Electric Mistress.
Expand	Proxima	Flatline Compressor	Compressor	Easy	$12.50	In stock Proxima quantity
	Documentation A simple, cheap and surprisingly effective optical compressor that works great on bass or guitar.
Expand	Quartz	Diamond Compressor	Compressor	Intermediate	$12.50	In stock Quartz quantity
	Documentation A vintage-inspired optical compressor with an EQ adapted from hi-fi consoles of the 1970s and 80s.

Legacy projects (prior to 2018) can be found on the Legacy PCBs page.