Purity Effects

Crown + Sword

Crown + Sword Compressor

The Crown + Sword compressor was born out of the need to control guitar volume in dynamic, live settings. A single song can call for several different strumming and hand picking styles, making it difficult to maintain a consistent volume without constantly adjusting output levels on the pedalboard or house mixing board. 

The Crown + Sword compressor gently coaxes studio grade tone out of your acoustic, electric, or bass guitar by utilizing the industry-acclaimed 4301 Analog Engine. By measuring your guitar's signal level and automatically adjusting the volume, you end up with a recording quality tone without noise or distortion. This is all done automatically by the compressor, so you can focus on your instrument.

Acoustic Guitar - Set to moderate threshold and ratio. Go from fills and delicate hammer-ons to full-open strummed chords, all while producing a stable volume level for the audience without squashing your signal.

Electric Guitar - Stack it in between a volume pedal and delay to give your ambient swells outrageous sustain. Use it in front of an overdrive to position your guitar for edge-of-the-cliff saturation to breakup.

Utility - Use it as a hard limiter to protect your PA equipment against dangerous clipping. Set an aggressive ratio and dial in the threshold.

The Crown + Sword is the next secret weapon for your pedalboard.


Size: 4.6" x 2.5" x 1.5" (125B)
Gain: -6 to +24 dB
Power: 9VDC, Negative Tip
Controls: Threshold, Ratio, Speed, and Gain
LEDs: White (Bypass), Red (Threshold)
Finish: White/Flake Powder Coat

Stage Friendly

Enclosed in a rugged aluminum enclosure, the Crown + Sword is rugged, compact, and right at home in your gig bag or pedalboard.

True Bypass

The Crown + Sword is full-mechanical true bypass and does not see your signal until engaged. 

revision history
rev 0: initial release
rev 1: new power section (more stable voltages, less part count)