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TWEETER MODE SWITCH
This three-position switch gives you the choice of three different options for operation of the horn tweeter. In the Full Range (top)
position, the tweeter will reproduce an unattenuated signal of every frequency it sees (roughly 2 kHz up to 15 kHz, within certain tol-
erances). The –6db (bottom) position reduces the level of the tweeter's outputs by 6 decibels, which to the ear sounds roughly as if
cut in half compared to the Full Range position. The Off (middle) position will defeat the tweeter's output entirely.
Try starting with the switch in the Full Range position. If this sounds too "treble-y" to your ear and you still want the touch of crispness
that a tweeter provides, you can: a) Set the Tweeter Mode Switch to –6db; b) Adjust the Treble tone control on the front panel; c) Try
a combination of both. Those users with a predisposition against a tweeter in general have the option to turn it off and leave it off, but
we recommend trying it out first.
SPEAKER MODE SWITCH
This two-position switch controls the signal sent from the power amplifier to your speaker cabinet (and extension speaker if connect-
ed). When set to the On (top) position (default setting from the factory), the Black Beauty will operate normally and the sound of your
amplified bass will be heard from the speaker cabinet. When set to the Off (bottom) position, that signal will be defeated regardless
of the settings on the front panel. This can be useful for silent practicing (in conjunction with the Headphones Jack, listed below), or
for defeating the audio while you re-patch cables or plug and unplug your instrument. This switch will not affect the signal present at
the various audio outputs (XLR, Effects Send, Tuner Out) or the Headphones Jack.
Note: If the volume on your instrument is up, and your Gain and Master Volume controls are up, and especially if you're seeing
the Preamp Clip and Limiter Active LED's illuminate while you're playing...and you can't understand why you're not getting any
audible output from the Black Beauty, check the position of this switch!
HEADPHONES JACK (STEREO ONLY)
By inserting a set of stereo headphones into this jack you can monitor your sound more closely in a studio situation, or practice
silently (when the Speaker On/Off Switch is set to "Off") so as not to completely annoy your neighbors. The headphone volume level
is adjusted by the Master Volume. We suggest you begin with the Master Volume full off (counter-clockwise), then slowly bring up the
volume to the desired level. If you hear some distortion in your headphones that isn't present through your speaker system, turn
down the Master Volume. You are probably overdriving your headphones and could ruin them, to say nothing of what you may be
doing to your ears.
Any impedance headphones will work. However, optimum impedance is 75 ohms.
COMBO CABINET JACK/PLUG ASSEMBLY
The black cable/plug assembly that comes out of the cabinet and is connected to the rear panel (near the text marked "Combo
Cabinet") is the means by which the power amp in your Black Beauty sends its signal to the speaker complement. Both the plug and
the jack it connects to are a special size, slightly less than the typical 1/4" found on instrument and speaker cables alike. SWR
strongly recommends that you not disconnect this cable, as it is not meant to be (nor can it be) used as an extension speaker output.
For proper connection of extension speakers to your Black Beauty, please read below.
16 • BLACK BEAUTY
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