Производители заявляют как эффект педаль
"A tube in a pedal? Pretty cool.
Introducing the COOLTRON series of effect pedals, seven very special stompboxes that use a 12AU7 preamp-type tube at low voltage to deliver the kind of tone that, until now, would have been impossible to achieve in a battery-powered pedal."
"Double the drive with the new Duel Overdrive pedal. With two overdrive circuits based on our own Big Ben Overdrive pedal, the Duel Overdrive provides foot switchable access to two sounds from a trunk-full of classic and modern tones. With separate Gain, Volume and Tone controls, you can set the pedal up with two totally independent overdrive sounds (aptly named OD1 and OD2!) to compliment a clean-bypassed tone. To make it even more flexible, we've added an assignable (OD1/OD2/both) low-end bass boost function for fat-bottomed overdrive tones. Add the Duel Overdrive to your existing pedal setup and benefit from an unmistakably “real” valve overdrive."