yesterday effects b494

b494 healed my post-1994 ds-1 wounds, and it can heal yours too...

in 1978 boss released what would go on to be one of the most popular distortion pedals ever created. in fact, the first pedal that was given to me at 10 years old was a boss ds-1. i was, and still am, a massive nirvana fan so i had to have the ds-1 because i read that kurt cobain used a ds-1. even to my 10 year old ear the ds-1 i had didn’t sound like the ds-1 kurt had. at the time i didn’t know it, but that difference in sound was a consequence of boss redesigning the circuit in 1994. 

from 1978 to some time in 1994, the ds-1 was a single op-amp based circuit. with the redesign that would occur later in 1994, the circuit would become a dual op-amp based circuit with one op-amp cascading into the other at the gain stage of the circuit. this change, along with altering the tonestack to have less bass and more treble, fundamentally altered the sound of the ds-1.

we are proud to present the yesterday effects b494 - a recreation of the original ds-1 design, before 1994. b494 features the exact, period-correct toshiba transistors and diodes used in original units, along with true bypass wiring, and 9v-18v center negative compatibility. experience ds-1 distortion as it was before 1994.

...it’s yesterday once more.

features:
-pcb designed by yesterday effects.
-nos toshiba transistors and diodes.
-true bypass.
-1590bb enclosure.
-reverse polarity protection.
-compatible with standard negative center 9v-18v adapters.

handmade with love in the usa using hand picked and hand matched components of exceptional quality.

all product and brand names used in this webpage are trademarks of their respective owners, which are in no way associated or affiliated with yesterday effects. these trademarks of other manufacturers are used solely to identify the products of those manufacturers whose tones and sounds were studied during yesterday effects' sound model development. use of these names and brands does not imply endorsement.