Treble, Midle, Bass, and
Gorgeous and Stone Solid
The Underground Custom is one hand-
some amp. Our review model arrived clad in
black vinyl (though the amp can be ordered
in a variety of coverings), which contrasts
nicely with its silver grille and white vintage-
style chicken-head knobs. The Bruno also
manages to combine Fender, Vox, and old
Marshall styling cues without looking deriv-
ative. On the grille you’ll find an especially
tasteful flourish, a simple Bruno logo in
an art deco–style font that underscores the
amp’s vintage aura and classy, upmarket feel.
Inside the Underground Custom, the
handwired, point-to-point circuitry incorporates CTS pots and other high-end electronics.
The tube sockets are made of ceramic, and
everything is held together with stainless-steel
screws and bolts.
The non-master-volume Underground
Custom has a somewhat unconventional tube
configuration—five EL84s and four 12AX7s.
However, that extra EL84 isn’t for power, it’s
a reverb driver. Like the Underground 30, the