Avalon M5 Mono Microphone Preamp with Direct Instrument Inputs Treat yourself to brilliant preamp perfection from Avalon! Easily one of the world's finest-sounding and respected preamps, the M5 belongs in the studio of every audio professional. The M5 is a low-noise mic preamp with DI instrument input. It's also a sterling example of Avalon's first-class design specifications-100% discrete, high-bias, pure Class A studio amp; minimal signal path designs; huge headroom; fantastic dynamic transient capability.