Event electronic 20/20 - Manual (Page 4)

gauge speaker wire to connect the positive (red) and negative (black) speaker
terminals to the similarly marked terminals on your power amplifier. Watch for
an accidental polarity reversal . . . it happens! The result will be loss of low
frequency response and center image.
2
20/20 bas B IAMPLIFIED S YSTEM C ONNECTIONS AND O PERATION
Please refer to Figure 2.
1 I NPUT S ENSITIVITY This control has a 20dB range and compensates
for different input signal levels. With the control at maximum, 1.1VRMS
input will produce full amplifier output. If too much input signal is
present, the amplifiers may overload, in which case the green LED at the
front of the monitor will flash.
2 I NPUT C ONNECTOR This jack has gold plated terminals and accepts
both XLR and ¼" input plugs wired either balanced or single-ended. A 3-
conductor ¼" TRS or XLR plug is necessary for balanced input
connections, but unbalanced wiring can also use either 3-conductor plug
with the minus input left either unconnected or grounded. A 2-conductor
¼" TS type plug will also work for unbalanced sources, which
automatically grounds the minus input. The input connector wiring is
printed next to the connector and is as follows:
NOTE: Use only good quality input connectors having industry standard
sleeve dimensions. Some consumer grade ¼" TRS plugs do not provide
reliable connections because of slight dimensional differences.
3 L OW F REQUENCY T RIM This controls the low frequency shelving
boost/cut filter. The LF Trim filter has effect at frequencies below 400Hz
and is fully engaged below 100Hz as shown on the rear panel response
graphic. When the LF filter is set to “0”, the 20/20bas is designed to
produce a flat LF response in the common “on the bridge or just behind the
console” speaker mounting location. Locating the monitors in-wall or in a
corner may require a reduction of low frequencies while free-standing in
the open may require an increase in low end output for proper tone balance.
The calibrated LF Trim filter allows for personal preferences in any
monitoring situation.
4 H IGH F REQUENCY T RIM Use this calibrated control to vary the
20/20bas’ high frequency output above 2.6kHz by
±
3dB to accommodate
personal preferences.
5 P OWER S WITCH 1 = ON 0 = OFF
When power is on, the green LED at the front of the speaker will
illuminate.
3
20/20 p S PECIFICATIONS
LF Driver:
HF Driver:
Frequency Response:
Crossover:
Acoustical Crossover:
Amplifier Power:
Input Connectors:
Polarity:
Input Impedance:
Input Sensitivity:
Input Level Control Range:
LF Trim:
HF Trim:
Subsonic Filter:
Protection:
Indicators:
Power Requirements:
Cabinet:
Dimensions:
Weight:
8" mineral filled polypropylene cone with 1½" diameter high
temperature voice coil, damped rubber surround and magnetic
shielding.
1" natural silk dome with ferrofluid voice coil coolant and
magnetic shielding
38Hz - 20kHz,
±
2dB, Ref 500Hz
Passive second order
2.2kHz
100W per channel continuous
Combo XLR - ¼" TRS connectors with gold contacts accepts
balanced or unbalanced sources
Positive signal at + input produces outward cone displacement
40k
Ω balanced, 20k Ω unbalanced
1.1V input produces full output with Input Level control at
maximum
20dB
Continuously variable control calibrated in 1dB increments;
Max boost/cut settings produces
±
3dB @ 100Hz,
± 2dB @ 400Hz
Continuously variable control calibrated in 1dB increments;
Max boost/cut settings produces
±
3dB above 2.3kHz
-3dB @ 30Hz
RF interference, output current limiting, over temperature, turn-
on/off transient, subsonic filter, resettable mains breaker
Combination POWER ON / CLIP LED indicator
Factory programmed for either 120V~ 60Hz,
220-240V~ 50/60Hz or 100V~ 50/60Hz, 400VA;
Power via detachable 3 circuit IEC type linecord
5/8" vinyl laminated lock-mitered MDF
10¼" W x 14¾" H x 11¾" D
33 lbs. Powered Main Cabinet;
22 lbs. Passive 20/20 Satellite