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Radio Design Labs DB-TPA1A
3.5w Power Amplifier

OUR PART #  DB-TPA1A

Our Price: $160.84
List Price: $215.16
You save 25%! (Low Price Guarantee)
Usually ships in 7-14 business days.
Need it sooner? Call us!

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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 <-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 (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.
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Usually ships in 7-14 business days.
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Usually ships in 7-14 business days.
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Radio Design Labs DB-TPA1A
3.5w Power Amplifier

OUR PART #  DB-TPA1A

Product Information:

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 <-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 (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.
3RU Rack Panel Mount for 9 Decora Models
Radio Design Labs 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 ...
67.75 90.63 25
In Stock
Single-Gang Universal Wall Box
Radio Design Labs 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 ...
14.20 16.75 15
In Stock
Wall Plate, Single Cover Plate, White
Radio Design Labs 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.
11.06 13.05 15
In Stock
Desktop or Wall-Mounting Decora Remote Control or Panel Chassis (Gray)
Radio Design Labs 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 ...
93.06 124.48 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
White Desktop or Wall-Mounted Chassis for Decora® Remote Controls and Panels
Radio Design Labs 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 ...
79.59 106.46 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Desktop/Wall-Mounted Chassis for Decora® Remote Controls and Panels
Radio Design Labs 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 ...
79.59 106.46 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Wall Mount Chasis for Decora
Radio Design Labs 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 ...
66.33 88.72 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Desk Top Chassis for Decora, White
Radio Design Labs 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 ...
66.33 88.72 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
1RU Rack Panel Mount for 3 Decora Models
Radio Design Labs 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 ...
58.27 77.95 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Desktop or Wall Mounted Chassis for Decora Remote Controls and Panels
Radio Design Labs 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 ...
52.78 70.58 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Wall Mount Chasis for Decora
Radio Design Labs 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 ...
52.78 70.58 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Gray Dual-Gang Surface Mount Boxes for 2 Decora Remote Controls and Plates
Radio Design Labs 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 ...
43.00 57.51 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Single-Gang Gray Surface Mount Boxes for Decora-Style Devices
Radio Design Labs 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 ...
39.55 52.89 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Dual-Gang Universal Wall Box
Radio Design Labs 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 ...
15.32 18.06 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Stainless Steel Quad Cover Plate
Radio Design Labs CP-4S Stainless Steel Quad Cover Plate
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"
13.92 16.42 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Double Cover Plate/Gray
Radio Design Labs CP-2/G Double Cover Plate/Gray
For use with RDL R style remote controls and D style connector plates; Mount with RDL WB-2U Universal Wall Box. 
12.03 14.19 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Stainless Steel Dual-Gang Wall Plate
Radio Design Labs CP-2S Stainless Steel Dual-Gang Wall Plate
Dimensions: 4.55" x 4.55" (11.6 x 11.6 cm)
12.03 14.19 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Single-Gang Gray Wall Plate for SMB-1, DC-1, WB-1U, Decora-Style Products
Radio Design Labs CP-1/G Single-Gang Gray Wall Plate for SMB-1, DC-1, WB-1U, Decora-Style Products
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)
11.06 13.05 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Single Gang Decora Cover Plate in Stainless Steel
Radio Design Labs CP-1S Single Gang Decora Cover Plate in Stainless Steel
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
11.07 13.05 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
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