RPQ500 Mic Preamp & R88 mk2 Stereo Mic Review / Tape Op
"The RPQ500 has magic inside. I had tried the R88 Mk2 with tons of other preamps while I was waiting for my own RPQ500 modules to arrive. The mic sounded great, but a whole new thing seems to happen when it feeds an RPQ500 pair! Take your favorite Shure SM57 or Sennheiser MD 409 on a twin, and plug it into the RPQ; you'll see what I mean. The mics open up, CurveShaper adds air without harshness, and the detail is amazing. No surprise - Wes and company have managed to define the 500-series ribbon mic preamp that also brings out the best of any mic."
RPQ500 Mic Preamp Review / Sound on Sound
"If you have an API 500-series rack and a collection of passive ribbon mics you'd like to get the best from, an AEA RPQ500 is close to being a no-brainer purchase — and more than one is something well worth considering. If you don't have a collection of ribbon mics, it's still a worthy purchase as a great mic-line preamp and a quality high-boost EQ in its own right."
RPQ500 Mic Preamp Review / Recording Mag
"It’s easy to pass by a mic pre like this if you don't own or do much with ribbon mics, but the RPQ 500 is so much more than a one-trick or one-mic pony. It holds its own comfortably with all the members of the "straight wire with gain" family and has some nice tricks up its sleeve that set it apart as well. Of course if you are a ribbon connoisseur and/or a 500-Series rack owner, then you really need to demo one of these preamps as soon as you can... it will change your expectations about what you can do with even the lowest-output mics."
RPQ500 Mic Preamp Review / Resolution
"This module impresses in its ability to wring some astonishing performances out of microphones. Don't think of it as just a 'ribbon-pre' though, it works very well on capacitor microphones too, and on more lowly dynamic microphones."