RDL D-TPA1A 3.5W Audio Power Amplifier

RDL D-TPA1A 3.5W Audio Power Amplifier

RDL D-TPA1A 3.5W Audio Power Amplifier

RDL D-TPA1A 3.5W Audio Power Amplifier

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RDL D-TPA1A overview

  • 1Description

The D-TPA1A 3.5W Audio Power Amplifier from RDL is a 2-pair audio amplifier compatible with the RDL Format A twisted pair products. Each D-TPA1A receives stereo audio and 24VDC power through a rear-panel RJ-45 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 D-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 or 8Ω speaker. The speaker cable connects to the module using a detachable terminal block. The front panel does not include any illuminated indicators, thereby making the D-TPA1A Amplifier suitable for installation in dark rooms or areas. Installation is simple and quick, requiring only the connection of the speaker leads and the twisted pair RJ-45.

The D-TPA1A Amplifier may be fed and powered from any RDL Format-A sender, and is useful 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 D-TPA1A Audio Power Amplifier wherever a single speaker, user-adjustable, wall-mounted amplifier is needed. It can be combined with other RDL Format-A products for a cost-effective, high-performance audio system.

3.5W rms audio amplifier into 8Ω
6.5W rms audio amplifier into 4Ω
Output drives 4 or 8Ω 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 RJ-45
Connects to format-A sender using a twisted-pair cable
Powered from RDL twisted pair format-A sender
Speaker output connection on detachable terminal block
Compact all metal construction
Thermal and short-circuit protection
In the Box
RDL D-TPA1A 3.5W Audio Power Amplifier
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    RDL D-TPA1A specs

    Input RDL format-A
    Input Connector RJ-45
    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 (maximum into 8 Ω); 6.5 W rms (maximum into 4 Ω)
    Power Consumption 45 mA (idle), 95 mA (1 W into 8 Ω), 150 mA (1 W into 4 Ω), 215 mA (3.5 W into 8 Ω)
    Sleep Power Consumption: < 0.3 W
    Enable: Active at audio gain <-60 dB
    Operating Environment Maximum: 32 to 104°F (0 to 40°C)
    Recommended: 68°F (20°C)
    Dimensions (H x W x D) 4.1 x 1.7 x 2.1" (10.4 x 4.3 x 5.3 cm)
    Packaging Info
    Package Weight 1.3 lb
    Box Dimensions (LxWxH) 4.625 x 3.625 x 2.125"

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