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The RoXdon
BBD-ECHO Analogue Delay is a 1970's sounding echo unit utilizing BBD
(Bucket-Brigade Device) discrete-time analogue delay line technology,
providing up to 600ms of delay. Less
hard work than tape delays and with a sound all its own, this vintage
effect quickly became a classic. The RoXdon BBD-ECHO has been designed to
be used in the recording studio to interface with preamps, mixers and
other units operating at line level. It also features a Modulation section
for Tape Echo emulation.
Tape based delay units were often unstable and unreliable, so by the start
of the 1970's, the BBD circuit was a viable alternative. Developed by
Philips Research Laboratories, the BBD shuttles a stored analogue signal
through a consecutive series of capacitors - like old fashioned Fire
Brigade buckets, hence the name.
Signals passed through the BBD circuit were subject to misidentification
of the signal frequency, introducing distortion or error (aliasing) which
gave the effect its distinct sound character sought by many musicians.
The RoXdon
BBD-ECHO features a steel 2U 19" rack mounted enclosure
manufactured with vintage style knobs, dials, on/off switch and power-on lamp . The rear panel
has a 9 volt DC socket for connection of the external power adapter
(supplied) and 1/4" line input and output jack sockets for connection
to a sound mixer or line level source.
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