ART 452 Handleiding

ART Niet gecategoriseerd 452

Lees hieronder de πŸ“– handleiding in het Nederlandse voor ART 452 (12 pagina's) in de categorie Niet gecategoriseerd. Deze handleiding was nuttig voor 68 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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EQUALIZER OVERVIEW – FEATURES AND GENERAL INFORMATION:
MODEL 442 TWO CHANNEL 15 BAND 2/3 OCTAVE PRECISION GRAPHIC EQUALIZER
The Model 442 features constant Q circuitry with a 3% center frequency accuracy. Special features
include 60MM full range precision Sliders, LED metering, selectable range 6dB or 12dB, active
balanced and unbalanced input/output connectors, RFI filters, variable input level control, passive
bypass switch, clip level indicators, ground lift switch, and selectable line voltage switch.
MODEL 452 SINGLE CHANNEL 31 BAND 1/3 OCTAVE PRECISION GRAPHIC EQUALIZER
The Model 452 features constant Q circuitry with a 3% center frequency accuracy. Special features
include 60MM full range precision Sliders, LED metering, selectable range 6dB or 12dB, active
balanced and unbalanced input/output connectors, and RFI filters. The unit also has variable Hi Pass
(low cut) and Low Pass (high cut) filters, variable input level control, passive bypass switch, clip level
indicator, a ground lift switch, and selectable line voltage switch.
INSTALLATION
The Model 442 and 452 Equalizers are designed for mounting in a standard 19” equipment rack or
one of the many rack type portable cases available on the market. The vertical measurements are 3.2
inches. Both models are 8.5 inches in depth.
POWER CONNECTORS
The Model 442 and 452 Equalizers have internal power supplies and are designed for operation from
120-240 volt, 50-60Hz mains supply. Power consumption is 12 watts. In new installations and port-
able sound systems, or any situation in which the mains power is in question, it is wise to confirm the
voltage and select the appropriate line voltage switch BEFORE connecting the equalizer to power
sources.
INPUT/OUTPUT CONNECTIONS
The Model 442 and 452 Equalizers have three paralleled input and output connectors. XLR and 1/4”
TRS are actively balanced with pin 2 or the tip being Hi (Hot), Pin 3 or the ring being Lo, and Pin 1 or
sleeve being ground. Unbalanced operation requires using the RCA phono connector or use Pin 2 of
the XLR or tip 1/4” TRS as ground.
3
Balanced output requires using Pin 2 of the XLR or the tip of the 1/4” TRS as output Hi (+) and using
pin 3 of the XLR or the ring of the 1/4” TRS as Lo (-). It does not require pin 1 or signal ground. The
signal exists differentially between the two balanced leads. Ground is used only for shielding to
prevent potential hum. Paralleling inputs and outputs may be accomplished by using any of the three
connectors. Note: 1/4” TRS are normally used.
SIGNAL LEVELS
Signal levels from -10 dBu to +4 dBu are considered normal and 20dB of headroom exists above
these levels. Do not connect microphones directly to the equalizer. Microphones require a preamp.
CHASSIS GROUNDING
The Model 442 and 452 Equalizers are equipped with a rear panel Ground Lift switch. After setting up
your system, if the system exhibits excessive hum or buzzing, the problem may be a ground incom-
patibility between your equalizer and other equipment in the same system. There are several combi-
nations that can be attempted. NOTE: ALWAYS TURN YOUR AMPLIFIERS DOWN BEFORE
CHANGING GROUNDS. Try different combinations of lifting grounds on units that are supplied with
ground lift switches or make sure all chassis are connected to earth ground, either through the AC
Power cord ground or by the front panel rack mount screws.
OPERATING INSTRUCTIONS
Before starting to equalize your sound system there is some information you should know and proce-
dures you should follow. Your equalizer is equipped with a bypass switch. The bypass switch, when
activated, lights the LED and cancels all equalization settings while allowing signal to flow through the
unit at unity gain.
Also included is a range selection switch with LED indicators, 6dB =green, 12dB= yellow. In addition
to the range selection switch there is a level control potentiometer. The level control operates be-
tween off and +6dB. Note: If there is too much gain your equalizer has a red LED Clip indicator. The
Clip LED illuminates when signals reach 5dB prior to clipping. If this situation occurs and the overload
LED flashes occasionally, this is okay. However, if the overload LED is steadily on, you must readjust
the level control.

Product specificaties

Merk: ART
Categorie: Niet gecategoriseerd
Model: 452

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