Bruno Custom 'Underground 30' 30 Watt - USA 2019

Here is a Bruno Underground 30 boutique amplifier, a hand-built masterpiece from renowned designer Tony Bruno, widely regarded as one of the most meticulous and tone-focused amplifier builders in the industry. Built around his guiding philosophy of “a tone that stands alone,” the Underground 30 reflects a singular obsession with achieving the ultimate guitar amplifier sound through premium craftsmanship, top-tier components, and uncompromising attention to detail.

Every Bruno amplifier is personally designed, built, and tested by Tony Bruno himself, with each unit also evaluated in a real band environment to ensure professional-level performance in practical musical settings. Only the highest quality premium and New Old Stock components are used throughout, contributing to the amplifier’s exceptional tonal depth, dynamic response, and long-term reliability.

At its core, the Underground 30 delivers approximately 36 watts of Class A power using a carefully voiced all-tube configuration consisting of 4 x EL84 power tubes, 3 x 12AX7 preamp tubes, and a GZ34 rectifier. It also includes a dedicated tube-driven reverb circuit powered by an additional 12AX7 and EL84, ensuring seamless integration and natural spatial depth. The result is a highly expressive amplifier with rich harmonics, strong articulation, and exceptional touch sensitivity.

A standout feature of this model is Tony Bruno’s custom 3-knob tube reverb system, offering independent control over reverb tone, mix, and dwell. This allows for an unusually wide and musical range of ambient textures, from subtle space enhancement to deep, lush reverb tails, all while maintaining clarity and definition in the core tone.

Cabinet construction is equally premium, built from solid pine for natural resonance and brightness, paired with a birch ply baffle for tonal focus and stability. Finger-jointed joinery ensures structural strength and long-term durability, while also reflecting traditional high-end furniture construction techniques. Additional boutique-level features include premium tolex covering, padded handles, heavy-duty feet, stainless steel hardware, and chromed steel corners, all contributing to its refined aesthetic and road-ready durability.

Specifications:

Year: 2019
Country: USA
Model: Underground 30
Finish: Natural
Power: 36 watts
Power Tubes: 4 × EL84
Preamp Tubes: 3 × 12AX7 (plus 1 × 12AX7 for reverb stage)
Rectifier: 1 × GZ34
Channels: 1
Speaker: 2 × Celestion Gold G12
Inputs: Not specified
Effects: Tube-driven reverb (1 × 12AX7 + 1 × EL84 dedicated)
Reverb: Yes
Construction: Tube amplifier combo/head (format not specified)
Accessories: Soft case and road case included
Dimensions: 67 × 84 × 30 cm