Description
The FP-MX4 is a compact 4-channel audio mixing module designed to accept four identical mic or line-level sources. It provides front-end mixing controls and fixed balanced outputs for both line and microphone levels. The unit is engineered for installations that require stable set-and-forget level control combined with occasional field adjustments.
Each input can be switched between mic and line operation and the module offers switch-selectable 24 V phantom power for condenser microphones. Three mic gain ranges allow the installer to match a wide range of microphone sensitivities. The mixer section uses four individual mixing potentiometers for level trimming and a dual-LED VU meter presents the combined output level for visual monitoring.
Technical performance emphasizes low-noise studio-quality operation and precise frequency response. Microphone inputs are 2 kohm balanced and the line inputs are 10 kohm balanced and may be wired unbalanced. The FP-MX4 delivers a balanced line output at +4 dBu and a balanced mic output at -45 dBu while maintaining very low THD+N across operating ranges.
Connectivity is straightforward with four combined mic/line inputs and two balanced outputs provided on standard audio connectors. Both the balanced line and balanced mic outputs can be used simultaneously to feed separate downstream equipment. Power is via a 24 Vdc ground-referenced supply drawing 160 mA.
The FP-MX4 is suitable for small broadcast booths, conferencing systems, and fixed-install audio racks where multiple mic or line sources must be combined. It can serve as a feed-in mixer for recorders, consoles, or distributed audio systems while preserving microphone phantom power and gain control. The fixed potentiometers and clear VU metering simplify setup and help maintain consistent levels during operation.
RDL FLAT-PAK construction provides rack-free mounting options and a durable enclosure appropriate for permanent installation. Setup requires minimal configuration – set input ranges, enable phantom if required, and trim the four mix pots to balance sources. The FP-MX4 offers reliable metering, selectable gain, and balanced outputs that support professional audio workflows in installed AV and broadcast environments.
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
