EQUALIZER
Shelving Frequency:
Sweepable from 5 kHz to 40 kHz.
Gain:
Sweepable from -
∞
to +16 dB.
Slope:
Selectable; 6 dB/octave or 12 dB/octave.
FUNCTION SWITCHES
HF EQ:
Enables high frequency shelving equalizer.
12 dB/OCT:
Changes equalizer slope from 6 dB/octave to 12 dB/octave.
+48V:
Sends reg48 VDC through 6.81k
Ω
0.1% metal film resistors to pins 2 and 3
of the input XLR.
Super Low Z:
Optimizes input stage for use with 20
Ω
low impedance microphones.
20 dB Pad:
Attenuates the input signal by 20 dB.
Ø Invert:
Reverses pins 2 and 3 of the input XLR connector.
Unbal (Rear Panel)
Unbalances the output. A 6 dB drop in level will occur.
Ground (Rear Panel)
In Balanced Mode: references the center tap of the output transformer to chassis
ground through a 10k
Ω
resistor. In Unbalanced Mode: references pin 3 of the out-
put XLR and the center tap of the transformer to chassis ground.
INDICATORS
HF EQ:
Green LED to indicate when EQ is engaged.
12 dB/OCT:
Yellow LED to indicated when 12 dB/octave mode is selected.
Peak:
Red LED to indicated when signal is within 3 dB of clipping. Sense points are: out-
put of M8 gain module (Course Gain), output of Fine Control, and output of equal-
izer section.
+48V:
Red LED lights when phantom power is being delivered to input XLR connector.
Super Low Z:
Yellow LED lights when Super Low Z mode is selected.
20 dB Pad:
Green LED lights when 20 dB pad is engaged.
Ø Invert:
Yellow LED lights when pins 2 and 3 of the input XLR are reversed.
Power:
Blue LED lights to indicate the 786 is powered.
OPTIONS
Digital output module:
Contact dbx for further details.
Analog output module:
Contact dbx for further details.
POWER SUPPLY
Operating Voltage:
100VAC 50/60Hz
120VAC 60Hz
220-240VAC 50/60 Hz
Power Consumption:
50 Watts maximum.
Fuse:
100V: 500mA 250V Slow Blow 5mm X 20mm
120V: 500mA 250V Slow Blow 5mm X 20mm
220-240V: T250 mA 250V 5mm X 20mm
Mains Connection:
IEC 320 Receptacle
PHYSICAL
Dimensions:
3.5” H X 19” W X 11.25” D
Weight:
20.5 lbs (9.3 kg)
Shipping Weight:
25.0 lbs (11.3 kg)
Note: 0 dBu = 0.775V RMS. Specifications are subject to change without notice.
12
Specifications
786
