Z VEX Lo-Fi Loop Junky Pedal

There are distinct advantages and disadvantages to this tiny, battery-saving device. You may only record one loop. There is no sound-on-sound available with this technology for now. But, if you unplug your cables, take out the battery, and bury it for a hundred years, the last loop you recorded will still be there when you drag yourself out of the grave and plug it in for the centennial resurrection gig. That’s because it uses really bizarre technology that literally crams analog signals into static digital storage cells without a-to-d conversion.

That’s right… THERE IS NO ANALOG TO DIGITAL CONVERSION. It’s pure analog storage, just like the old bucket-brigade technology, for 20 seconds straight. It would take 25 800ms analog delay pedals to hold the loop that this thing can play. For those of you who know how an a-to-d converter works: Inside the big fat chip, the voltage of the analog signal is sampled thousands of times per second and stored in sample-and-hold cells.

The voltages of these individual cells are transferred using a horrifying silicon machine that squirts charge (something like a caulk-gun) into digital storage cells normally designed to hold ones and zeros. When the circuitry decides that the voltage in the cell is close enough to the sampled voltage (who can predict?) it moves on to do it again. It’s like some kind of electronic Russian roulette, where the recording may or may not be accurate when compared with the original, but at least no computer ever puts its paws on the signal. Dig? There are no computers and no a-to-d conversion chips in this pedal!