What is the difference between the DSP-3 and the DSP-4?
You may have already noticed that the DSP-3 uses phoenix or Euro block inputs and outputs whereas the DSP-4 employs XLR inputs and outputs. Phoenix connectors are common and preferred in installed systems. Thus the DSP-3 fits well into the contractor market. The DSP-4 fits well where XLR connectors are preferred such as portable live sound applications. Another difference has to do with the DSP specifications. The DSP-3 uses a 24-bit CODEC for digital to analog and analog to digital conversion. This chip takes up less space and is less expensive than using separate digital to analog converters (DAC) and analog to digital converters (ADC). By contrast, the DSP-4 uses individual 24-bit D/A and A/D converters. While this approach is more expensive, it provides increased dynamic range or signal-to-noise ratio. The depth of the DSP-4 is larger than that of the DSP-3 to accommodate the XLR connectors. All other dimensions are equal.
