Art HQ 231 Spécifications télécharger pdf (Page 21)

XL231 FEATURES

▲ Greater than 123dB Dynamic Range

▲ Ultra Low Noise and High Output

▲ 40 Volt Internal Circuitry for Added Headroom,

and Line Driving Capability

▲ High and Low Frequency “Trim” Controls for Sweetening Overall

Sound After EQ Has Been Set

▲ Enhanced Cut Mode: Up to –18dB Narrow Band Clips

▲ Normal and Enhanced Modes also have Half-Scale Modes for a

otal of 4 Boost/Cut Modes

▲ 10 Segment LED Level Meters with

‘Peak-Hold’

and Clipping Indication

▲ Constant Q Design with Interleaved Filter Banks to Reduce

Band Inter

action

▲ High Precision Filters with 2% Film Capacitors

, 1% Resistors

▲ Built-in RFI Suppression

▲ Grounded Center

-tapped Slide Potentiometers for True Zero

Flat Position

▲ 45mm Metal Shaft Slide Potentiometers with Center Detents,

and Mixing Desk Style Knobs

▲ Automatic Relay Bypass if Power is Lost

▲ Euroblock Detachable Barrier Strips, XLR, and 1/4-inch Phone

Ring-Tip-Sleeve Balanced Inputs and Outputs

▲ Toroidal Power Transformer

HQ-231

The HQ-231 Dual 31-band Graphic EQ is perfect for any live sound

application where there is a high feedback potential including monitor

mixes, side-fill cabinets or high powered front-of-house mixes.

The HQ-231 features ART’s proprietary FDC™ (Feedback Detection

Circuit), with constant Q circuitry capable of delivering a 3% center

frequency accuracy. Professional features like LED level metering,

selectable 6dB or 12dB slider range, active balanced and unbalanced

input & output connectors, RFI filters, independent variable Hi Pass

(low cut) and Low Pass (high cut) filters, variable input level control,

passive bypass switch, clip level indicator, ground lift switch, and

selectable line voltage switch make it ideal for any professional

application or touring system.

FDC™ FEEDBACK DETECTION CIRCUIT

FDC (Feedback Detection Circuitry – designed and developed by ART

Engineering) instantly illuminates an LED on the corresponding EQ

band fader with the greatest sustained signal. The LED indicators can

immediately show which band corresponds to the feedback frequency,

allowing the sound engineer to reduce gain in that band to quickly kill

the feedback while having a minimal impact on the sound of the live

progr

am material.

The FDC also acts as a simple spectrum viewer while the concert

proceeds showing where the ‘hot’ areas are. During system setup and

sound check, the FDC may be used to help identify room and sound

system resonances

By increasing the gain until feedback,

it is easy to

identify those frequencies that are likely to be problems. Reducing the

gain in these bands helps tune the sound system, and, remove

problem areas before the show begins

It also helps increase the gain

margin before feedback.

CONSTANT-Q FILTERING

The HQ-231 features Constant-Q Filtering, which helps the HQ’s FDC

work with greater efficiency while offering superior overall

performance of the EQ

Constant-Q ensures that even when making

radical adjustments to a frequency band, that adjacent bands will not

be affected. This is particularly critical in professional applications

including monitor mixes and feedback control.

PROFESSIONAL FEATURE SET

Professional features like center detent sliders with selectable boost

or cut range of 6dB or 12dB ensures the HQ-231 can be used for

radical tone shaping, or precise control of a sound system. Versatile

connection to any live sound system or installation can be easily

made using balanced XLR, 1/4-inch TRS and unbalanced RCA input

and output jacks included on the HQ-231 back panel.

High and low pass filters, analog level metering, variable input level

controls, signal clip level indicators, ground lift switch, internal power

supply and selectable line voltage complete the HQ-231 Dual

31-Band Gr

aphic EQ’

s full feature set.

FEATURES

▲ FDC™ Feedback Detection Circuit

▲ Dual Channel 31-Band Graphic Equalizer

▲ Output Level VU Metering on Each Channel

▲ Constant-Q Filtering

▲ Individual High and Low Pass Filters on Each Channel

▲ Center-Detented Frequency Band Sliders

▲ Independent Level and Bypass Controls on Each Channel

▲ Relay Bypass - If Power is Lost, Signal Will Still Pass

▲ Variable Input Controls

▲ Signal Clip Level Indicators

▲ Ground Lift Switch

DUAL 31-BAND GRAPHIC

EQUALIZER WITH FDC™

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