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RDL DB-TPA1A 3.5 Watt Decora Audio Power Amplifier/Black/Guest Room Audio System

The -TPA1A modules are two pair audio amplifier modules compatible with RDL Format A twisted pair products. Each -TPA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack.
In stock (50 items available)
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  • Weight
    1.00 lbs
  • Warranty
    3 Years
  • Condition
  • Status
Product availability status

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  • $193.64
Market price: $215.16, you save $21.52
  • 10% less
  • Shipping info
    We offer free ground shipping on every purchase of $300 and more for US.
  • Payment Methods

  • Return Policy
    We Offer a 60-Day Money Back Guarantee
  • Weight
    1 lbs
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The -TPA1A modules are two pair audio amplifier modules compatible with RDL Format A twisted pair products. Each -TPA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack. The left and right audio signals received on pairs B and C of the twisted pair cable are summed to mono and amplified. The amplified output level is set by an internal VCA which is controlled by a front-panel volume control. The VCA attenuator provides years of scratch-free gain adjustment.

The -TPA1A circuits are all designed for low power consumption. Amplification is provided by a high-efficiency Class D power stage with audio filtering tailored for crisp, pleasant audio clarity. The high-efficiency Class D output stage produces negligible heat for all levels of expected voice or music modulation. When the user reduces the audio level to minimum, the class D output stage is switched off. This sleep mode remains active until the user turns up the output level.

The output drives either a 4 Ohm or 8 Ohm speaker. The speaker cable connects to the module using a detachable terminal block.

The front panel does not include any illuminated indicators, making the -TPA1A ideally suited to installation in dark rooms or areas. Installation is simple and quick, requiring only the connection of the speaker leads and the twisted pair RJ45.

The -TPA1A may be fed and powered from any RDL Format-A sender, and is ideal in hospitality installations fed from a sender connected to a TV monitor (for example: FP-TPS4A Audio Sender from TV with fixed audio output level).

Use the -TPA1A wherever a single speaker user-adjustable wall mounted amplifier is needed. Combine the amplifier with other RDL Format-A products for a cost-effective, high-performance audio system.


  • 3.5 Watt RMS Audio Amplifier into 8 Ohms
  • 6.5 Watt RMS Audio Amplifier into 4 Ohms
  • Output Drives 4 or 8 Ohm Speaker
  • Setting Level to Minimum Activates Energy-Saving Sleep Mode
  • High-Efficiency Class D Operation
  • VCA Level Adjustment for Scratch-Free Long Life
  • Input and Power Connection on RJ45
  • Connects to Format-A Sender using Twisted-Pair Cable
  • Powered from RDL Twisted Pair Format-A Sender
  • Speaker Output Connection on Detachable Terminal Block
  • Ultra-Compact All Metal Construction
  • Thermal and Short-Circuit Protection
Input: RDL Format-A
Input Connecter: RJ45
Gain Adjustment: Single turn audio taper, VCA attenuator
Frequency Response: 50 Hz to 20 kHz(± 1.5 dB)
THD+N: < 0.1% (@ 1 kHz, 1 W)
Nc:se: <-70 dB (below 1 W RMS)
CMRR: > 60 dB (50 Hz tc 120 Hz)
Output Power: 3.5 W RMS (max., into 8 Ohms); 6.5 W RMS (max., into 4 Ohms)
Sleep Mode Power Consumption: < 0.3 W
Sleep Mode Enable: Active at audio gain <-60 dB
Ambient Operating Environment: 0° C to 40° C
Power Consumption: 45 mA (idle), 95 mA (1 W Into 8 Ohms), 150 mA (1 W into 4 Ohms), 215 mA (3.5 w Into 8 Ohms)
Dimensions: Height: 4.13 in. 10.49 cm; Width: 1.7 in. 4.32 cm; Depth: 2.15 in. 5.47 cm
Package Type: Cardboard Box
Package Dimensions: 3.625 x 4.625 x 2.125 in.
Shipping Weight: 0.395 IbS.
WEEE Weight: 0.245 lbs
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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. BZB Express 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.

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Most items ordered from BZB Express 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.


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We Offer A 60-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 60 days of the purchase date for a full refund. Our 60-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 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.

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