Description
The HD-RA35UA is a compact mixer amplifier that combines a four-input mixer with two Class D amplifier zones for background music and paging applications. Zone 1 delivers 35 W RMS as a constant-voltage output selectable for 25 V / 70 V / 100 V. Zone 2 provides a 4 W RMS low-impedance output and a transformer-balanced 600 ohm MOH output.
Key features include front-panel paging control, three remote-controllable VCA inputs for user volume adjustment, and a front-panel VOX/push-to-talk paging input. The unit employs analog-filtered Class D amplifier stages and an analog compressor/limiter on the Zone 1 output to preserve audio dynamics while preventing clipping. Tone controls for bass and treble are provided and can be switched to affect the line output.
The HD-RA35UA is engineered for energy efficiency and automatic standby operation when audio is absent, consuming less than 1 W in sleep mode. The Zone 1 compressor increases average perceived output for transient-heavy program material without audible pumping, and a front-panel LED indicates compressor activity. Inputs 1 and 2 accept mic or line level with switchable 24 V phantom power and rear-panel gain trimmers for precise gain staging.
Connectivity covers balanced terminal-block mic/line inputs, unbalanced RCA line inputs, a send/return effects loop, dual-mono RCA line outputs, and an RJ45 remote control jack for RDL VCA wall controllers. A 24 Vdc ground-referenced output is provided to power optional external RDL modules. The unit ships with an external 24 Vdc power supply and includes detachable terminal blocks for amplified outputs.
Typical installations include small retail stores, houses of worship, offices requiring paging and background music, and systems needing music-on-hold for telephone equipment. The VOX or push-to-talk paging options allow automatic ducking of background sources by 25 dB and a rear-panel trimmer sets the fade-up delay. The Zone 2 mixer and MOH outputs support small-zone speakers and telephone hold interfaces.
Installation and operation are straightforward for installers and end users. Rear-panel DIP switches select sleep delay from 10 minutes to 2 hours or disable sleep entirely for continuous operation. Thermal and short-circuit protections are integrated and the Class D topology minimizes heat generation for reliable long-term use.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.
Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.
International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.
Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.
We Offer A 30-Day Money Back Guarantee:
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.
Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.
Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.
No Returns/Exchanges on the following:
- TVs and monitors 20" and larger
- Special Order merchandise
- Any item indicated on the website as non-returnable
For more information see our official Return Policy
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