10

TECH 21 Boost Overdrive with the unique SPARKLE control

Controls:
drive, boost, sparkle, tone, level, boost switch
Bypass:
buffered
Power Supply:
9 volt DC/battery
Technology:
solid-state, analog circut
Discrete circuit:
yes
Schematic:
not available
tv icon Jump to videos

Notes

The main cool thing of this pedal in my opinion is the sparkle knob, that adds upper harmonics for a brighter sound, that I very liked.

Another useful feature is the 21dB clean boost that can be used independently from the overdrive effect to push your amp. The booster is located after the overdrive circuit so when used with the built in overdrive effect and a clean amp, it won't create heavier gain, rather punchier and louder sound.

Example Settings

(position is indicated in space relative to the numbers on a clock's face)
Emulating a treble booster:
drive: 0
tone: all the way up 
sparkle: all the way up 


Making a mid boost:
drive: down
tone: all the way up 
sparkle: about noon

VIDEO DEMOS

With a Strat and Les Paul Traditional Guitar

Stratocaster: 00:46
Les Paul: 04:43
The treble booster trick: 05:11

with a Gibson SG guitar

Only some riffing over the bridge pickup.

with a Fender Stratocaster

Some riffing and a bit of soloing
only over the single coil bridge pickup.
buffered bypass, boost control knob, upper harmonics, treble boost, midrange, tech 21 nyc, versatile, discreet components, analog circuit, electric guitar, custom-built actuators, all-metal body, clean boost, open sounding highs, bluesy overdrive tone