The Universal Audio 4-710d is one of those pieces of gear that can really do it all. With four channels of mic preamps that let you blend between tube and solid-state tones, it’s one of the most versatile tools in my studio.

I’ll walk you through how this unit works, compare some tube and transistor tones on acoustic guitar, and show you how I use the 4-710d in both tracking and mixing sessions.

At Barnhouse Sound, I’m always on the lookout for tools that can bring warmth, character, and flexibility to recordings. One piece of gear I reach for constantly is the Warm Audio WA273-EQ, a dual-channel mic preamp and EQ inspired by the legendary Neve 1073.