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That "sweet spot" setting for maximal funky clean tones also depends on the right amount of Bass
and Middle. Settings between 4 and 6 for both of these controls will usually give the best balance
against "that perfect Treble setting" where the tone is springy and bright but not harsh.
The Bass and Middle response has been very carefully designed to allow fatness in the Rhythm
mode while avoiding tubbiness or flabbiness when footswitching to a crunch, lead or metal tone.
REVERB The Studio combo amplifier includes a 3-spring Hammond-Accutronics unit, and all-tube
send/return electronics. Tonal quality is outstandingly good. Note: if both Reverb and Master(s)
controls are set extremely high, acoustical feedback between the speaker and springs may occur.
This does not indicate a fault or malfunction with the amplifier, and is only caused by an inappropriate
and unnecessary combination of settings. Should this "reverb howl" begin to occur, simply turn down
either the Reverb or the Master (or Lead Master).
PRESENCE This control lets you dial in exactly the desired amount of extreme high frequencies,
which determines the basic brightness of the overall tone. Brighter tones generally sound clearer and
cleaner, while less bright tones sound "warmer". Season to your liking ... most players run the
Presence between 3 and 6.
GRAPHIC EQUALIZER
(Optional) This feature greatly expands the tonal flexibility of your Studio .22
Plus. (But for those who've opted not to order this option -- don't worry! All of the R & D for tonal
performance was conducted without using the Equalizer, so that it wouldn't be necessary for getting
great tone.)
The EQ selector switch (located to the right of the sliders) offers three modes of operation: EQ AUTO
(upper position); EQ OUT (center unlabelled position); and EQ IN (lower position). In EQ AUTO, the
equalizer is activated automatically whenever you switch to the Lead mode, and is turned off when
you switch to Rhythm. In effect, this gives you a separate tone preset for Lead. In EQ OFF, the
equalizer is off in both modes, but can be footswitched remotely on or off with the optional EQ
Footswitch (which connects to the rear panel EQ jack). In EQ IN, the equalizer will be active in both
Lead and Rhythm (but cannot be footswitched remotely).
Although there are hundreds of different ways to set the Graphic, there's one setting that's
particularly popular: the classic “V” Move the first and last sliders about three-fourths of the way up.
Move the second and fourth sliders two-thirds of the way up. Move the center slider about
three-quarters of the way down ... then fine-tune the sound using just this center slider. You'll hear
how a slight adjustment at the 750 Hz position makes a dramatic difference in the sound. This “V”
setting makes the amp sound bigger, bolder and stronger... especially at very soft playing levels.
REAR PANEL FEATURES
FUSE Should your Studio Boogie blow its fuse, be sure to replace it with the same amperage,
slow-blow type. If the fuse blows again, check for a bad power tube. Often the bad tube will light up
red hot all over the large metal plate inside. Repeated instantaneous fuse-blowing probably indicates
a silicon rectifier diode or a shorted filter capacitor. Any of these events are very uncommon in the
.22, however.
GROUND This switch is often helpful in reducing buzzes which originate in the AC power wiring
outside the amplifier. Leave the switch in its center OFF position unless position A or B definitely
helps. This usually occurs only when the ground pin on the AC plug is being defeated via a
ground-lift adapter at the wall socket. In the center OFF position your Boogie cannot be the source of
annoying "ground shocks" to the microphones, etc.
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