Description
The FP-PA18HX is a compact 18 W mono Class D audio amplifier designed to deliver clear amplified audio into an 8 Ohm load. It is engineered for elevated ambient temperatures up to 70 C and includes a worldwide 24 Vdc power supply for flexible deployment. The unit is packaged in an ultracompact all metal enclosure for durability.
Key features include a balanced line level input that accepts unbalanced connections, a single-turn gain adjustment, and detachable terminal block connections for input and output. An analog compressor/limiter minimizes clipping and increases average output power while preserving normal dynamic behavior for standard program material. LED indicators provide immediate visual status for power, output activity, and compression activity.
Performance specifications include 18 W RMS into 8 Ohm, frequency response of 20 Hz to 20 kHz (+/ 1 dB) measured at compressor threshold, and THD+N under 0.5 percent across the audio band at the referenced level. The compressor threshold is set 3 dB below rated output and the detector circuitry senses output activity down to milliwatt levels. Thermal and short circuit protection are integrated to maintain reliable operation.
Connectivity is handled via detachable terminal blocks for both balanced/unbalanced line input and speaker output, and the module accepts a 24 Vdc supply provided by the included worldwide power module. The output stage provides an open collector output tied to the output detector for system-level control or monitoring. The gain control accommodates both consumer and professional nominal input levels.
The FP-PA18HX is suited to applications such as outdoor signage audio, distributed paging feed, and compact PA systems where elevated ambient temperatures limit conventional amplifier choices. Its analog compression provides improved average loudness and clarity compared to typical class D designs that rely on digital limiting. The compact footprint allows installation in confined equipment racks or enclosures where space is limited.
Installation is straightforward using the detachable terminal blocks and single-turn gain control that can be adjusted manually or via a trimming screwdriver. The high efficiency Class D design minimizes heat generation while the high-temperature internal components permit continuous operation up to 70 C. The unit ships in a cardboard box and is ready for integration into broader AV systems.
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
