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ACTIVE 4 BAND EQUALIZATION – Each channel of the Shenandoah 200 contains a separate 4 band (with
2 sweepable mids) active equalizer. These equalizers, similar to those found on professional sound consoles, are
very useful tools when used correctly.
LOW FREQUENCY EQ - The corner frequency of the low frequency section is 85 Hz, with a shelving curve
type. This frequency is particularly handy when dealing with low frequency feedback from a big dreadnaught guitar,
cello or upright bass. With a “boomy” instrument on a small stage, a combination of volume reduction and turning
down the low frequency control will generally get good results. The low frequency control is also handy for adding
some “bottom” to a baritone sax and “chunk” to many stringed instruments.
HIGH FREQUENCY EQ - The corner frequency of the high frequency section is 8 kHz, shelving curve type.
This frequency is especially useful for taming the bright harshness of some mandolins, violins, brass and reeds. It
drums are present.
MIDRANGE EQ - The “sweep mid” section features 2 independent midrange equalizers, peaking curve type, with
over 12 dB of cut or boost and a bandwidth approximately 1 octave wide. The center frequencies of these
offending frequencies in the instrument’s pick-up response. Removing only the minimum amount necessary will yield
the most acoustically rewarding results. The easiest and most repeatable way to determine the offending frequency
range is to boost the mid level somewhat (but not to the point of feedback) and while playing, sweep the frequency
just how quick it can be. You will hear a clear and obvious accentuation of the “ugliness” you wish to remove. Then,
reduce the gain control until the sound you desire is attained. The ear is a most sensitive and discriminating piece of
test equipment when used in this manner, another good reason to protect them! This is the way many touring sound
in “boost” mode, particularly common when adding higher midrange (bite) to an otherwise dull instrument, or adding
low mid “body” to an otherwise thin sound. Spend some time experimenting so that the process becomes creative as
well as corrective.
AUXILUARY INPUT LEVEL CONTROL – The Shenandoah™ 200 is equipped with both ¼” and dual RCA
aux input jacks and aux level control. These rear panel jacks are internally summed, and feed the stereo mix via the
aux level control. Both aux inputs are line level, for use with drum machines, CD, MP3 and tape players.
MASTER VOLUME – The stereo master volume control adjusts the overall volume of the mix of channel 1,
channel 2, effects return 1 and effects return 2. Typically, best results are obtained when this control is operated
between the 9:00 and 3:00 positions.
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