RoXdon DUB-ECHO Retro Analog Echo Box. BRITISH HANDBUILT SOUND EFFECTS. The RoXdon DUB-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. More reliable than tape delays, this vintage effect quickly became a classic. The unit has controls for Input Level, […]... Read More