Edirol R4Pro Ambient

Edirol R4Pro Ambient preamp upgrade offers improved speed, clarity, detail and depth of image by rebuilding the R4pro's preamp circuitry. This MOD replaces the stock NJM2068 chips in the preamp circuit with higher slew rate, lower noise and distortion FET op amps. The preamp input caps are also upgraded with ultra high Audio grade capacitors that have a Spurious Free Dynamic Range in excess of 120dB. The result is lower noise and distortion with better low level detail and clarity plus improved imaging.
Price includes return shipping in the 48 states.