The most innovative feature on the AD999 Pro, however, is its
Multi-Delay option, which is activated by flipping one or more of
the three mini switches that reside below the main knobs. These
kick in a variety of multitap echoes—including triplet and sixteenth-
note rhythms—and can achieve a convincing simulation of
a multi-head tape delay. Located below the output on the left side
of the pedal is the Dry Output. Connecting a cable to it outputs
a completely dry signal, while the Main output—which is otherwise
a mix of wet and dry—becomes 100-percent wet.
Though the AD999 uses a proprietary 9-volt power supply, an
internal voltage doubler ups it to 18 volts to feed the circuitry.
This increases the headroom and allows the pedal to perform
equally well in an effects loop or straight into the front of an
amp. Also worth noting is that the power supply features a voltage-
sensing circuit that can be adapted for international use by
simply swapping out the cord that goes between the AC outlet
and the supply.
I found the AD999 Pro’s sound to be warm, smooth, and very
pleasing. It’s the only pedal in this roundup to lack a tap-tempo
function, but if all you seek are rich, juicy analog and tape-style delay
sounds, the AD999 may be exactly what you’re looking for.
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