Randall Amplifiers USM-ISO12C - Manual (Page 2)

SECRET TIGHTLY SEALED (via heavy duty latch)
REAR COMPARTMENT STASH CONTAINING YOUR
FAVORITE GUITAR CAB MIC SENDING SIGNAL TO
AN XLR OUTPUT TO FEED FOH/MONITORS...........
AMP HEAD GOES HERE- (Like Normal)
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Directions: Simply plug your 8 ohm speaker output from any amplifier source into the 1/4” speaker inout of the ISO. With the top lid or rear compartment door open, tailor
your sound as you would with any cabinet. (Note that the Vintage 30 Celestion is 60 watts so be aware that it cannot handle the same power as a 4x12 full of them). Next,
close the lid or rear compartment and secure the latches. Now, plug a standard XLR cable into the XLR output and connect to any source that accepts XLR mic level. This
can be anything from a channel input of the PA system to the smallest USB interface for recording. Finally. adjust for optimum level and you are done. Remember that there
is no such thing as total silence, but the ISO cab approach eliminates most of the sound coming from speaker and allows use of loud amplifiers for home recording in
situations where you can’t blast and “Silent Stage” situations in which many players are forced to degrade their experience by using digital modeling products. ENJOY!