Bruno Custom 'Underground 30' 30 Watt - USA 2013

Here is a Bruno Underground 30 boutique amplifier, a hand-built, high-end creation from Tony Bruno, one of the most respected boutique amp designers in the world. Built around the philosophy of “a tone that stands alone,” the Underground 30 reflects Bruno’s singular obsession with achieving the ultimate guitar amplifier tone through uncompromising craftsmanship, premium component selection, and meticulous design.

Tony Bruno personally builds, tests, and evaluates every amplifier, ensuring each unit meets his exacting standards. Each amp is not only bench-tested but also evaluated in a full band environment, guaranteeing real-world performance for professional musicians. Only the highest quality premium and New Old Stock components are used throughout, contributing to the amplifier’s exceptional sonic depth, reliability, and musical responsiveness.

At its core, the Underground 30 delivers approximately 36 watts of pure Class A power using a carefully tuned valve complement of 4 x EL84 power tubes, 3 x 12AX7 preamp tubes, and a GZ34 rectifier. The design also incorporates an additional 12AX7 and EL84 dedicated to the tube-driven reverb circuit, ensuring seamless integration and tonal richness. This results in a highly dynamic amplifier with exceptional clarity, harmonic complexity, and natural compression.

A standout feature of this model is Tony Bruno’s custom 3-knob tube reverb system, offering dedicated controls for reverb tone, mix, and dwell. This design provides an exceptionally lush and spacious reverb character, allowing precise shaping of ambience while maintaining clarity and musicality across all settings.

This example is fitted with two Celestion Blue Alnico 12” speakers, widely considered among the finest guitar speakers available. Known for their warm, open, and highly articulate response, these speakers deliver an almost “acoustic-like” clarity with excellent touch sensitivity. Originally made famous in the Vox AC30, they remain a preferred choice for many professional studio and session guitarists due to their efficiency, musical compression, and rich harmonic character.

Specifications:

Year: 2013
Country: USA
Model: Underground 30
Finish: Natural
Power: 36 watts
Power Tubes: 4 × EL84
Preamp Tubes: 3 × 12AX7 (plus additional 1 × 12AX7 for reverb stage)
Rectifier: 1 × GZ34
Channels: 1
Speaker: 2 × Celestion Gold G12
Effects: Tube-driven reverb (1 × 12AX7 + 1 × EL84 dedicated)
Reverb: Yes (tube-driven)
Construction: Tube amplifier combo/head (format not specified)
Accessories: Road case included
Dimensions: 67 × 84 × 30 cm