Roland DD-3 Owner's Manual download pdf (Page 29)

Specifications

DD-7: Digital Delay

Nominal Input Level ...................... -20 dBu

Input Impedance.............................1 M

Nominal Output Level ................... -20 dBu

Output Impedance.......................... 1 k

Recommended Load Impedance.. 10 k

or greater

Delay Time.......................................1 ms–6400 ms

* Values may vary according to the mode and connections.

Maximum Recording Time............ 40 seconds (in HOLD mode)

Controls ............................................ Pedal switch, E.LEVEL knob, F.BACK knob, D.TIME knob,

MODE knob

Indicator ........................................... CHECK indicator

(Used for indication of TEMPO, HOLD, and to check battery)

Connectors ....................................... INPUT-A (MONO) jack, INPUT-B jack,

OUTPUT-A (MONO) jack, OUTPUT-B jack,

TEMPO/EXP jack, AC adaptor jack (DC 9 V)

Power Supply .................................. DC 9 V: Dry battery 6F22 (9 V) type (carbon)/

Dry battery 6LR61 (9 V) type (alkaline),

AC Adaptor (PSA-series: optional)

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Roland DD-3 Owner's Manual Page 29