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Equalization (8, 9, 10)
The 6505 equalization block features passive LOW, MID and HIGH EQ that is custom tailored to the
6505 sound.
Resonance & Presence (13, 14)
Unique to the 6505, the RESONANCE [13] control can be set to boost the gain of the power amp in
the low frequencies at the resonance/attenuation point of the speaker cabinet. In simple terms,
the RESONANCE control works like a low EQ to offset low-end frequency drop-out. The PRESENCE
[14] control works in the same manner, boosting the high frequencies. Experimentation using your
particular speaker cabinet along with personal taste will determine your setting for these important
controls.
Standby Switch (15)
This switch allows the 6505 to be placed in a non-operational standby mode. When the standby switch
is activated the tubes remain hot and ready for instantaneous operation, eliminating warm-up time.
The STANDBY LED indicator light will illuminate when the amp is in the operational mode.
Power Switch (16)
This switch supplies power to the unit. Depressed to the “on” position, the POWER LED indicator light
will illuminate indicating power is being supplied to the unit.
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