Bugera BC30-212 Quick Manual page 2

BUGERA BC30-212
Boutique-Style 30-Watt Class-A Valve Combo
with Valve Rectifier
Get Rectified
The power amp works hand-in-hand with
the BC30-212's all-valve rectifier to give you
natural compression and sustain not available
from solid-state rectifiers. Put simply, a rectifier
converts the Alternating Current (AC) entering
your amp into the Direct Current (DC) it needs.
Most modern amps have silicon-based rectifiers
that quickly convert the current, so when you
strum a power chord, it bursts out big and
loud, then decays. But a valve rectifier converts
current at a slower rate, which means when
you hit that same huge chord, you still get that
powerful response, but the notes naturally
compress and sustain much longer.
Hi/Lo Inputs
(Channel 1) Volume (Channel 1)
IEC power
socket
The kind of rectifier you choose has a lot
to do with your sound. That's why we provide
two options on the BC30-212: use a single 5AR4
rectifier to deliver bigger-than-life stadium rock;
or plug in a pair of 5U4's (not included) for a
smoother, more-buttery sound.
Two Degrees of Saturation
The rectifier and power amp are the
BC30-212's heart and soul, respectively, but the
preamp works to predispose your sound to
cleanliness or high-gain grind. When you're
at your job and your workload is too heavy,
you probably get a bit angry and likely do
a little (or a lot of ) griping. Valves work in
Hi/Lo Inputs Volume
Bass/Treble (Channel 2) (Channel 2)
FX Loop for
processors and
effects pedals
Fuse
much the same manner, except when one of
them is overworked, the sound they make is
often perceived as "totally kick-ass" instead of
"bitching and moaning. "
Bearing that in mind, BC30-212's first
channel holds a pair of 12AX7s, the V1 stage
of which creates a parallel triode circuit.
More tubes share the workload, so the
signal it conditions is tamer. Channel 2,
on the other hand, holds a single ECC83A
valve that works in a cascading dual-triode
configuration. The accompanying 6-position
tone switch allows you to dial-in a tone that can
become beautifully disgruntled (or high-gain,
in amp-speak) in a hurry.
Master
Tone – six Cut reduces controls
different tone high-end overall
settings sharpness volume
Output Power
Speaker selector
(Hi 30 W /
Phase
switch Lo 15 W)
Continued on next page
Standby
switch mutes Power
amplifier switch
Impedance ¼" jacks for
switch connecting
(16 Ω, 8 Ω, external speaker
or 4 Ω) cabinets