HUM Audio Devices is a Polish manufacturer of high-end boutique audio equipment for recording, mixing, and mastering, established in 1999 and handcrafted in Poland. The company operates its own professional facility, TONN STUDIO, where its devices are developed and tested during real sessions.

The product line focuses on all-discrete analog designs and includes the N-TROPHY all-discrete analog console, the N-MATRIX relay-based insert matrix, the N-closure 2 and N-closure 6 channel strips, and the LAAL (Look Ahead Analog Limiter) mastering limiter. HUM is also known for the RS-2 Ribbon Recording System, which pairs the ARM-1L and ARM-1S active ribbon microphones with the remote-controlled RP-2 mic preamp, marketed as the world's first remote-controlled stereo/M-S ribbon microphone with built-in discrete mic preamps.

HUM Audio Devices has partnered with Plugin Alliance to bring digital emulations of its analog hardware — including the LAAL limiter — to the plugin world. The brand is regarded as a niche, pro-audio builder whose tools are aimed at mastering engineers and high-end tracking studios rather than the guitar or live-performance market.

Hum Audio Devices has 2 products cataloged on Equipboard, including Effects Processors and Limiter Plugins.