The DD-2 was the first digital pedal that Boss made and the worlds first stompbox Digital Delay. It is based around the chip made for the Roland SDE-3000 rack mounted digital delay.

By luck, the chip just fits across the width of the compact pedal and for months the design time worked to squeeze the rest of the components on to the printed circuit board. The design is utilizing a 12 bit AD converter producing a flat frequency response between 40Hz and 7kHz.

The DD-2 did officially go out of sale 1986 but it was relaunched without changes as the DD-3 and has continued its life through till today.

The DD-2s circuit didn’t change throughout its lifetime but there are a couple of minor differences to note. The black control plate had cream colored text early on.

The text color was changed to silver somewhere around serial number 480000 late 1984.

The first blue label used did not have the FCC compliance text usually found on all digital pedals. This was changed very quickly so this blue label is rare.

SPECIFICATIONS

Controls: E.Level, F.Back, D.Time, 4-way Mode switch

Connectors: Input, Output, Direct Out, AC Adaptor

Current Draw: 55 mA (DC 9V, D.Time control at center)

Weight: 450 g (0.99 lb.)

A/D Conversion: 12-bit logarithmic compression

D/A Conversion: 12-bit logarithmic compression

Input Impedance: 1Mohm (FET Input)

Residual Noise Level: -95dBm (IHF-A)

Recommended Load Impedance: 10kOhm or greater

Delay Time: 12.5 to 800ms

Recommended AC Adaptor: PSA Series

LABELS

Blue – Made In Japan

The DD-2 was sold from December 1983 to August 1986.

[Condition]

Used( perfect working condition and in Very Good condition. )

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