KU4 Ribbon Mic Review / Sound on Sound
"The combination of classic ribbon smoothness with a near-cardioid pattern is a very beguiling permutation that enables the use of ribbon mics in situations that are normally inappropriate or too challenging. The KU4's only practical imitation, really, is due to it's size and weight, but if you have mic stands that are up to the job it's hard to think of an application that wouldn't benefit from a KU4!"
KU4 Ribbon Mic Review / PSN
"Overall this is a mic that displays no pretense. What you capture is what you get. There's very little hype of overriding 'color' to impose upon your recording other than ribbon warmth. Comparing the KU4 with the flood of new ribbons on the market, you quickly appreciate the RCA heritage and RCA sound the has endured for generations."
A840 Ribbon Mic Review / Recording Mag
"The A840 is promoted to be an R84 with added phantom powered electronics, but to my ears it sounded better than that; I did not hear much of the midrange issues that I heard with the R84. The added phantom-powered electronics do what they are supposed to do and they don't get in the way, and the resulting mic has a very good and usable sound."
A440 & RPQ Review / Resolution Mag
"What you are paying for in the A440 is that 'magic' sound - and a degree of authenticity that's as close as is possible to the original 44 - in a package that delivers the goods in a more modern recording chain. And with the RPQ ribbon pre P48 you get a preamplifier that will do it - and for that matter, any other ribbon microphone - the utmost justice."
Purchase the back issue.
RPQ Mic Preamp Review / Mix
"This is the smoothest EQ I've ever heard...The AEA RPQ is an all-around super mic preamp. It caters to the requirements of any ribbon mic with its high gain, low noise, gigantic dynamic range and excellent Curve Shaper section."