Roland SDD 320 Dimension D Processor (Vintage)

Roland SDD-320 Dimension D which was introduced in 1979 and used extensively by Brian Eno, Talking Heads, Kate Bush, U2, and others. The Dimension D works as a fixed chorus machine that intentionally lacks typical pitch modulation, instead achieving its effects through the use of dual synched delay lines that are driven by a trapezoidal LFO-key to avoid warble. This LFO shape has a noticeable effect of the chorus tone, so by using this shape, Roland were able to produce the psychoacoustic effects of the Dimension D. This device’s distinctive sound is further developed by its built in compressor-expander, in addition to the characteristic analogue and old-school Roland tone qualities.