Summit Audio EQP-200B Dual Program Equalizer - Manual (Page 3)

THE CONTROLS
1. Low Frequency Shelf / In / Out : This three-position toggle switch selects between a low
frequency 6 dB per octave shelving filter starting at 50 Hz, or standard engaged operation, or
bypass mode (which disengages the filters yet still passes through the tubes).
When LF Shelf is engaged the other filters are still accessible.
2. Low Frequency Boost : This potentiometer controls the amount of boost engaged for the 20, 30,
60, 100, 180 Hz frequencies. Maximum boost (a setting of 10) is about 16 dB.
3. Low Frequency Cut : This potentiometer controls the amount of cut engaged for the 20, 30, 60,
100, 180 Hz frequencies. Maximum cut (a setting of 10) is about 20 dB.
4. Low Frequency Select : This five-position rotary switch selects between frequencies of 20, 30,
60, 100, and 180 Hz for which the low frequency boost and cut controls have effect.
5. Mid-High Frequency Select : This eight-position rotary switch selects between frequencies of
1.5k, 3k, 5k, 8k, 10k, 12k, and 16k Hz for which the mid-high frequency boost control has effect.
6. Mid-High Frequency Boost : This potentiometer controls the amount of boost engaged for the
1.5k, 3k, 5k, 8k, 10k, 12k, and 16k Hz frequencies. Maximum boost (a setting of 10) is about 20
dB.
7. Mid-High Frequency Bandwidth : This potentiometer controls the “Q” or bandwidth associated
with the boost engaged for the 1.5k, 3k, 5k, 8k, 10k, 12k, and 16k Hz frequencies. It is important
to note that minimum setting (0) imposes the tightest filter and a maximum setting (10) imposes
the broadest filter. When set for maximum bandwidth, the mid-high frequency boost is limited to
boost of about 10 dB.
8. High Frequency Cut : This potentiometer controls the amount of cut engaged for the 5k, 10k,
and 20k Hz frequencies. Maximum cut (a setting of 10) is about 17 dB. The slope of the filter is 6
dB per octave.
9. High Frequency Select : This three-position rotary switch selects between frequencies of 5k,
10k, and 20k Hz for which the high frequency cut has effect.
10. Power : This switches power on and off. Note that the red pilot lamp is illuminated when the unit
is on. (It is possible that over time the bulb in the pilot lamp may burn out, in which case the unit
is still operational, but you won’t be able to tell from the pilot lamp if the unit is on. Please contact
Summit Audio authorized dealers for bulb replacements.)
[Note: The two channels operate as dual mono. Thus, the top controls have no effect
on the bottom channel and vice versa.]