Art HQ 231 Spécifications télécharger pdf (Page 20)

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DUAL 31-BAND 1/3 OCTAVE, EXTENDED LONGTHROW GRAPHIC EQ

The ART XL231 Dual 31 Band, 1/3 Octave Extended Long Throw

Professional Equalizer has been designed and engineered to exceed

extremely high standards for audio performance and functionality.

This innovative, high-quality equalizer is perfect for virtually any audio

application where precision frequency tailoring, reliable performance,

rugged design and extremely silent processing are of the

utmost priority.

ACTIVE FILTER SECTIONS

The XL231 features active filter sections, which incorporate a

constant-Q design. This constant-Q design, with its accurate precision

center frequencies, ensures that the bandwidth of every individual

filter will be narrow enough to prevent unnecessary interaction

between adjacent filters, yet still create an equalization curve wide

enough to produce the exact and precise processing of audio

frequencies the user seeks. Filter circuitry incorporates high quality

low noise components including 1% resistors, and, precision high

performance 2% film capacitors.

ENHANCED CUT MODE

The XL231 offers an enhanced cut mode that allows more narrow

filters and deeper cut of -18dB. This helps when trying to tame

resonance and minimizing overall spectral changes. Only each filter’s cut

mode is enhanced while their boost char

acteristic remains unchanged.

PRECISION SLIDE POTENTIOMETERS

The XL231 uses 45mm precision slide potentiometers. These center

detented, metal shaft precision faders are graphically positioned on

ISO center frequencies between 20 Hz to 20 kHz.

he sliders feature

a grounded center tap to assure that the filter is out of the

circuit when the control is at its center detent.

HI AND LOW TRIM CONTROLS

These unique controls allow a gentle slope to be added, or subtracted

from the overall frequency response. Both controls hinge at the middle

of the spectrum and allow subtle changes to the overall sound without

the need to adjust many sliders. Although similar in concept to tone

controls, these differ in their well controlled precision straight curves,

and, have less selectivity so the Trim controls don’t have a ‘sound’ as a

typical tone control will.

VARIABLE LOW CUT FILTERING

To help keep bass under control, the XL231 Graphic Equalizer

incorporates a variable swept Low Cut filter.

AUTOMATIC RELAY BYPASS

The XL231 also features automatic relay bypass of audio, an essential

function if power to the unit is lost. Rugged construction and solid

audio performance make this equalizer particularly well suited to fixed

installation as well as touring live sound systems.

ADDITIONAL CONTROLS AND INDICATORS

The XL231 Graphic Equalizer includes a variable output level control, 10

segment level bar with peak hold, clip level indicator, and selectable line

voltage. Additional features include selectable Scale Switching - (High

Slider Resolution ±6dB - or Normal Resolution (±12dB), active balanced

and unbalanced input/output connectors

and RFI filtering. A front panel

Bypass switch allows direct comparison between the equalized and

non-equalized signal for each channel.

VERSATILE I/O

he XL231 Graphic Equalizer may be connected to a wide variety of

audio devices. It has three sets of input and output connectors: XLR,

1/4-inch phone, and detachable Euroblock barrier strip connectors.

The inputs are wired in parallel. The XLR and Euroblock output

connections are also wired in parallel.A separate output circuit is used

for the 1/4-inch phone output.

It provides a balanced connection that

results in the same output level when operated with balanced, or

unbalanced connections.

PRECISION AND QUALITY

When considering quality equalization, the XL231 Graphic Equalizer

is an excellent choice. It delivers extremely precise, powerfully flexible

and simply great sounding equalization, with the quality features and

reliable design criteria necessary for top-level audio performance.

XL231

GRAPHIC EQ’S

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