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ART HQ231 - Dual Channel 31-Band Equalizer with 20mm Faders, Feedback Detection Circuitry, LED Energy Indicators, XLR, 1/4" TRS Balanced and RCA Unbalanced Inputs/Outputs
UPC: 840402011637

The HQ231 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 program 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 HQ231 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 45mm center detent sliders with selectable boost or cut range of 6dB or 12dB ensures the HQ231 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 HQ231 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 HQ231 Dual 31-Band Graphic 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
  • Internal Power Supply
  • Selectable Line Voltage
FREE SHIPPING DETAILS

*Please note that only Canada Post delivers to PO boxes.

  • Free Shipping offer is valid on selected products only.
  • Orders will be sent via Canada Post or UPS shipping method unless specified at the time of order.
  • Free Shipping offer is valid only if all the items in the shopping cart are eligible for Free Shipping
    and the order is $200.00 and over (before taxes).
  • Free Shipping is valid only within Canada.
  • Orders shipped to Newfoundland, Northwest Territories, Nunavut, and Yukon are not eligilble for free shipping.
  • Our everyday low shipping charges will be applied to any non-eligible products at the time of checkout..
  • Courier shipments require an adult signature for proof of delivery..
  • RED ONE Music reserves the right to end or modify this Free Shipping offer at any time.
  • Return shipping costs are the responsibility of the buyer.
RED ONE Music reserves the right to refuse any order with Free Shipping which the website accidentally
offered but did not meet the criteria above. The client will be notified with an every day low shipping charge and
asked if they would like to proceed with the order or have it cancelled. 

EXPORT POLICY 
  • All delivery charges and taxes will be added when applicable to the prices shown on our Website.
  • Duties and brokerage fees (if any) will be the sole responsibility of the customer, and may be collected by a third party.
  • Please make sure you have entered the correct information for your coordinates and currency to get the correct pricing for your location.
 Note: If the name on your billing address does not match the name on your credit card it will delay your order.

RETURNS

  • All returned opened items are subject to a min 15% to maximum 25% restocking fee.
  • If you are not completely satisfied with your purchase, returns will be accepted for store credit (less restocking fee & shipping) within 14 days of invoice date.
  • RED ONE Music will accept returns for defective goods that you have ordered from us within 14 days of invoice date for exchange only.
  • All Returns must contain all associated packaging and materials (ie accessories, manuals, wires, etc). Merchandise that is not returned in brand-new condition, including damages, abuse, marks, showing wear, or with missing packaging or accessories, will be subject to additional charges. Shipping and Handling charges (delivery and return) are non-refundable, including any shipping fees not directly incurred that are part of a free shipping promotion. Any items packaged with software, including but not limited to, DJ Controllers, Audio Interfaces, etc., must be returned with the original software disc including serial number and proof of deactivation.
  • Returns or exchanges will not be accepted for the following types of products: Customized, special order, used products, clearance products, expendable items, cartridges, replacement lamps/bulbs, opened computer hardware, rigging supplies, tape, needles, cleaner kits, effect fluid or juice, software, gels, music, displays/televisions/monitors or parts (replacement, repair or item components) - these products are final sale.
  • Returns or exchanges for the following items will only be accepted if they are in factory sealed packaging due to hygienic reasons: headphones & microphones.
  • All returns made MUST be authorized in advance by a customer service representative - and paper work dispatched to you via email. Your RMA form must be included in the box and your RMA number located on the waybill / packaging. Any returned items that arrive without prior approval or missing documentation may be rejected by our shippers. Once received, returns will be processed within 5 business days.

WARRANTY

  • RED ONE Music is an authorized retailer for each of the brands available on our website. As such, your purchase is authorized for the manufacturer's warranty in Canada.

In store pick-ups

  • To be eligible for a store pick-up, please review the criteria below:
  • If your order is paid by credit card, you then qualify for a store pick-up. Note that once you pick-
  • up your order, you must present a valid government photo ID as well as the original credit card
  • used during the purchase. The name and address must match the name and billing/shipping
  • address associated to the order.
  • If your order is paid by e-transfer, you then qualify for a store pick-up. You must present a valid
  • government photo ID to match the name appearing on the e-transfer information.
  • If your order is paid by Paybright, you then qualify for a store pick-up. You must present a valid
  • government photo ID to match the name appearing on the Paybright application.
  • Please note that all orders paid using PayPal will not qualify for store pick-up. If you paid by
  • credit card using the PayPal platform, this payment method will also not qualify for store pick-
  • up.

All orders that are picked-up in store must sign the release form acknowledging the reception of your
order. Note that Music Red One may request to take a copy of your government photo ID to add to this
acknowledgement form.

1. At checkout, select PayBright as your payment option.

2. Enter a few pieces of information and get a real-time decision.

3. Enjoy your purchase, and pay over time. Your payments will be automatically charged, so you can sit back and relax!