RDL DB-TPA1A

3.5w Power Amplifier

OUR PART #:  DB-TPA1A Write the First Review.

Our Price: $166.31
List Price: $222.47
You save 25%!
  • 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
Learn More
Price-Matching Symbol. Low Price Guaranteed Free Shipping Available FREE Shipping
Usually ships in 6-10 business days.
Need it sooner? Call us!
Pro Buyer Card
Deferred Interest if paid in full within 6 months * Learn More

Related Products

The Radio Design Labs -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.

Radio Design Labs DB-TPA1A Features:

  • 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

Radio Design Labs DB-TPA1A Specifications

  • Input: RDL Format-A
  • Input Connector: 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)
  • Noise: < -70 dB (below 1 W RMS)
  • CMRR: > 60 dB (50 Hz to 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
  • 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 (HxWxD): 4.13" x 1.7" x 2.15" (10.49 x 4.32 x 5.47 cm)
  • Package Type: Cardboard Box
  • Package Dimensions: 3.625" x 4.625" x 2.125"
  • Shipping Weight: 0.395 lbs.
RDL DC-4G  Desktop or Wall-Mounting Decora Remote Control or Panel Chassis (Gray)

RDL DC-4G Desktop or Wall-Mounting Decora Remote Control or Panel Chassis (Gray)

Radio Design Labs' DC-4G desktop chassis holds four Decora®-style products, including RDL remote controls and connector plates.  Installation is facilitated using the included mounting plate, which allows the chassis to mount to ...
$96.22 List Price: $128.71You Save 25%
In Stock
Free Shipping AvailableFree Shipping
RDL WB-1U Single-Gang Universal Wall Box

RDL WB-1U Single-Gang Universal Wall Box

Can be mounted in International or US walls and cabinets. Features side and rear mounting holes which secure the box in new construction. Also has folding tabs which secure the box in an existing wall or cabinet.Dimensions: Height: 4.125 ...
$14.68 List Price: $17.32You Save 15%
In Stock
RDL CP2-S CP-2S

RDL CP2-S CP-2S

Dimensions: 4.55" x 4.55" (11.6 x 11.6 cm)
$12.44 List Price: $14.67You Save 15%
In Stock
RDL DC-4W  Desktop or Wall Mounted Chassis for Decora Remote Controls and Panels, White

RDL DC-4W Desktop or Wall Mounted Chassis for Decora Remote Controls and Panels, White

The Radio Design Labs DC-4W desktop chassis holds one, two, three or four Decora®-style products, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis ...
$96.22 List Price: $128.71You Save 25%
Usually ships in 6-10 business days.
RDL DC-3W White Desktop or Wall-Mounted Chassis for Decora® Remote Controls and Panels

RDL DC-3W White Desktop or Wall-Mounted Chassis for Decora® Remote Controls and Panels

Radio Design Labs' DC-3W desktop chassis hold three Decora®-style products, including RDL remote controls and connector plates.  Installation is facilitated using the included mounting plate, which allows the chassis to mount to a ...
$82.30 List Price: $110.08You Save 25%
Usually ships in 6-10 business days.
RDL DC-3G  Desktop/Wall-Mounted Chassis for Decora® Remote Controls and Panels

RDL DC-3G Desktop/Wall-Mounted Chassis for Decora® Remote Controls and Panels

Radio Design Labs' DC-3G desktop chassis holds three Decora®-style products, including RDL remote controls and connector plates.  Installation is facilitated using the included mounting plate, which allows the chassis to mount ...
$82.30 List Price: $110.08You Save 25%
Usually ships in 6-10 business days.
RDL RM-D9 3RU Rack Panel Mount for 9 Decora Models

RDL RM-D9 3RU Rack Panel Mount for 9 Decora Models

Radio Design Labs' RM-D9 is a 3 RU rack panel that allows the mounting of 9 Decora products, such as RDL remote controls and D-Series connector plates. The installer can label each installed module behind an included protection lens.The ...
$70.06 List Price: $93.71You Save 25%
Usually ships in 3 business days.
RDL DC-2G  Wall Mount Chasis for Decora

RDL DC-2G Wall Mount Chasis for Decora

The DC-2G desktop chassis holds two Decora®-style products, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a ...
$68.58 List Price: $91.74You Save 25%
Usually ships in 6-10 business days.
RDL DC-2W Desk Top Chassis for Decora, White

RDL DC-2W Desk Top Chassis for Decora, White

The DC-2W white desktop chassis holds two Decora®-style products, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a ...
$68.58 List Price: $91.74You Save 25%
Usually ships in 6-10 business days.
RDL RM-D3 1RU Rack Panel Mount for 3 Decora Models

RDL RM-D3 1RU Rack Panel Mount for 3 Decora Models

Radio Design Labs' RM-D3 is a 1 RU rack panel that allows the mounting of 3 Decora products, such as RDL® remote controls and D-Series connector plates. The installer can label each installed module behind an included protection lens. The ...
$60.26 List Price: $80.60You Save 25%
Usually ships in 4 business days.
RDL DC-1W  Desktop or Wall Mounted Chassis for Decora Remote Controls and Panels

RDL DC-1W Desktop or Wall Mounted Chassis for Decora Remote Controls and Panels

The Radio Design Labs DC-1W desktop chassis holds one Decora-style product, which includes RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a ...
$54.58 List Price: $72.98You Save 25%
Usually ships in 4 business days.
RDL DC-1G  Wall Mount Chasis for Decora

RDL DC-1G Wall Mount Chasis for Decora

The DC-1G desktop chassis holds one Decora®-style product, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a vertical ...
$54.58 List Price: $72.98You Save 25%
Usually ships in 3 business days.
RDL SMB-2G Gray Dual-Gang Surface Mount Boxes for 2 Decora Remote Controls and Plates

RDL SMB-2G Gray Dual-Gang Surface Mount Boxes for 2 Decora Remote Controls and Plates

Radio Design Labs' SMB-2G dual-gang surface mount boxes holds two Decora®-style products, including RDL remote controls and connector plates.  Knockouts are provided for fastening standard metric or North American conduits to the ...
$44.46 List Price: $59.46You Save 25%
Usually ships in 3 business days.
RDL SMB-1G  Single-Gang Gray Surface Mount Boxes for Decora-Style Devices

RDL SMB-1G Single-Gang Gray Surface Mount Boxes for Decora-Style Devices

Radio Design Labs' SMB-1G surface mount boxes holds one Decora®-style products, including RDL remote controls and connector plates.  Knockouts are provided for fastening standard metric or North American conduits to the rear of the ...
$40.89 List Price: $54.69You Save 25%
Usually ships in 6-10 business days.
RDL WB-2U Dual-Gang Universal Wall Box

RDL WB-2U Dual-Gang Universal Wall Box

Can be mounted in International or US walls and cabinets. Features side and rear mounting holes which secure the box in new construction. Also has folding tabs which secure the box in an existing wall or cabinet.Dimensions: Height: 4.125 ...
$15.84 List Price: $18.68You Save 15%
Usually ships in 4 business days.
RDL CP4-S CP-4S

RDL CP4-S CP-4S

For use with RDL SMB-4 and DC-4 for mounting RDL remote controls and jack panels.  Compatible with Decora style products and American electrical boxes.Shipping Weight: 0.16 lbsPackage Dimensions: 7" x 9"
$14.39 List Price: $16.98You Save 15%
Usually ships in 6-10 business days.
RDL CP2-G CP-2/G

RDL CP2-G CP-2/G

For use with RDL R style remote controls and D style connector plates; Mount with RDL WB-2U Universal Wall Box. 
$12.44 List Price: $14.67You Save 15%
Usually ships in 3 business days.
RDL CP1-W Wall Plate, Single Cover Plate, White

RDL CP1-W Wall Plate, Single Cover Plate, White

For use with RDL R style remote controls and D style connector plates; Mount with RDL WB-1U Universal Wall Box.
$11.43 List Price: $13.49You Save 15%
Usually ships in 4 business days.
RDL CP1-G CP-1/G

RDL CP1-G CP-1/G

Radio Design Labs' CP-1G is for use with RDL SMB-1, DC-1 and WB-1U for mounting RDL remote controls and jack panels.  Compatible with Decora style products and American electrical boxes.Height: 4.55" (11.6 cm)Width: 2.80" (7.1 cm)
$11.44 List Price: $13.49You Save 15%
Usually ships in 4 business days.
RDL CP1-S CP-1S

RDL CP1-S CP-1S

The Radio Design Labs CP-1S is a single gang decora cover plate in stainless steel.Dimensions: 4.55" H x 2.8" W (11.6 x 7.1 cm)Package Dimensions: 2" x 3"Shipping Weight: 0.072 lbs
$11.45 List Price: $13.49You Save 15%
Usually ships in 6-10 business days.

To be the first to review this item, click here.

Add to Cart

We're sorry, only of this item available



Call a Sales Pro at 800-356-5844 for more information