Sytek MPX-4Aii
quad mic preamp
(four channels of Burr Brown modifications)

Very quiet high-gain preamps designed and built by Mike Stoica, of Neotek console fame. Four channels of mine have Burr Brown ICs installed, which give a SLIGHTLY softer, JFET-type of sound. Still very modern and sonically transparent, with the exception of the noticeably high transient response. Outstanding for use with older ribbon and low-output microphones and well-suited for electric guitar amps, horns, ambient microphones, and acoustic recording.