Description
The DS-TPSML1A is an active single-pair Format-A sender designed to transmit microphone or line-level audio over twisted-pair cabling. It accepts a balanced XLR input and provides studio-quality preamplification optimized for typical mic and line operating levels. The module supports IEC P24 phantom power for condenser microphones and offers remote powering options.
Key features include switch-selectable mic/line operation, selectable mic gain settings, and switchable assignment to Format-A pairs A, B or C. The unit provides signal and power pair pass-through on both RJ45 jacks to support daisy-chaining of multiple senders. A front-panel blue LED in the XLR connector indicates module power status.
Performance specifications include a frequency response of 20 Hz to 20 kHz (+/- 0.25 dB), THD+N below 0.1% across the audio band, and headroom greater than 18 dB above +4 dBu. Mic gain options are 46 dB (MIC LOW) and 60 dB (MIC HIGH), while LINE is unity gain. Common-mode rejection exceeds 65 dB in mic high settings and is higher in other settings.
Connectivity is via an XLR input and RJ45 Format-A output jacks. The module feeds one selected audio pair and provides passthrough of the power pair and all three audio pairs to downstream modules. Power can be supplied locally via the detachable terminal block or remotely through the twisted-pair cable from compatible Format-A devices.
Typical applications include studio and broadcast microphone feeds, AV installations requiring centralized power and signal distribution, and systems that need low-noise long-distance mic transmission over twisted pair. The module chains with other single-pair or two-pair senders and can be configured to avoid pair conflicts when multiple senders are connected.
Installation is installer-friendly with rear-panel switches for input type, mic gain, phantom power and pair selection. The chassis is available in stainless steel, black or white to match wall-plate aesthetics, and local power is fused to protect connected modules. Overall, the DS-TPSML1A delivers quiet, low-distortion active preamplification for Format-A twisted-pair audio 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
