LaChapell Audio is a boutique manufacturer of tube microphone preamps and 500-series studio outboard gear, founded in 1999 by Scott LaChapell. The company set out to build all-tube preamps that gave engineers fine control over harmonic content, working through years of prototyping with Scott's father, a retired senior design engineer, before releasing the 992 dual-channel tube preamplifier — a unit that became the foundation of the brand's reputation for quiet, versatile vacuum-tube amplification.

The product line spans the flagship 992 and 992EG stereo tube preamps, the 983M and 983S/983S mk2 single- and dual-channel tube mic pres, the 583S mk2 and 583E 500-series tube preamps (the 583E adding a tube-driven EQ section), the 500DT dual-topology preamp, and the 500TDI tube DI. LaChapell was the first company to put a true tube preamp into the 500-series format, designed with the higher plate voltages needed to run vacuum tubes at full potential rather than the starved-plate approach common in compact tube designs.

The brand is widely stocked through pro-audio dealers like Vintage King, Funky Junk, KMR Audio, and Front End Audio, and the 992 has seen use by engineers and artists including Hans Zimmer, Brad Paisley, and Phil Keaggy. LaChapell Audio became part of Digital Audio Labs in 2017, with Scott LaChapell continuing to provide technical and product direction.

LaChapell Audio has 6 products cataloged on Equipboard, including Preamps and Effects Processors. Their gear is featured by 1 artist, with the strongest followings in Electronic, Rock, and Stage & Screen. Notable users include Mick Gordon.