Universal Audio OX Amp Top Box Attenuator

A premium reactive load box and guitar recording system, giving you perfectly studio-miked amp sounds from your tube amp. OX accurately emulates speaker drive, breakup, and cone cry — making it the world’s finest speaker attenuator and guitar amp recording solution.

Record through the legendary Bill Putnam-designed 610 tube console mic preamp and compress signals with authentic Teletronix tube circuitry. Shape your tones further with High and Low frequency shelving tube EQ. Handmade in the USA.

An all-tube channel strip featuring a classic 610 preamp and 1176-style FET compressor in one powerful, tone-filled unit. Handmade in the USA.

Four channels of classic tube and solid-state tones with 1176-style compression and professional A/D conversion.

A radical UA design that combines the retro warmth of tubes with the transient bite of solid-state. Blend between the two for an infinite range of unique preamp tones.

Get the classic Putnam 610 tube console sound in a portable, versatile mic preamp design. Offers the silky, vintage warmth of the original console, and will enhance any microphone or instrument.

Legendary, Putnam-designed, FET-based hardware limiting amplifier featuring custom Class A transformers and ultra-fast attack time. Handmade at the UA Custom Shop in Santa Cruz, California.