RDL DS-HA1A Format-A Stereo Headphone Amplifier (Silver)

RDL DS-HA1A Format-A Stereo Headphone Amplifier (Silver)
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Expected availability: 7-14 business days

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  • This item is noncancelable and nonreturnable.
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RDL DS-HA1A Overview

The silver DS-HA1A Format-A Stereo Headphone Amplifier from RDL is a two pair receiver and audio headphone amplifier compatible with RDL Format-A twisted pair products. Each unit receives stereo audio and 24 VDC power through a rear-panel RJ45 jack fed from a Format-A sender. The left and right audio signals received on pairs B and C of the twisted pair cable are amplified and fed to the left and right channels of the output 3.5mm mini-jack.

The front panel provides the headphone output jack and a single-turn user volume control. There are no illuminated indicators that could be distracting in dark locations, such as a hotel room. The audio input circuits feature very high common mode rejection and a high quality stereo headphone amplifier for superior audio fidelity and low-noise performance.

The amplifier is equipped with two Format-A RJ45 jacks. Either jack may be used as the input. The other RJ45 may be used to connect an additional amplifier or other Format-A receiver. Installation is simple and economical. A standard twisted pair cable is used to connect a Format A sender to the amplifier.

The unit features automatic fused power, hum rejection, low noise, and low distortion for designers and installers looking to work with twisted pair products. The DS-HA1A is ideally suited to guest room installations with bedside and restroom listening stations. The input is fully compatible with all RDL Format-A senders

Headphone amplifier with user level control
Output on standard mini jack
Mounts in a wall or cabinet
Input and power connection on RJ45
Connects to Format-A sender using twisted-pair cable
Powered from RDL twisted pair Format-A sender
RJ45 Loop-thru for connecting additional modules
Protected by automatically resetting fuse
Decora design with all steel panel and rear enclosure
UPC: 813721015761


InputRDL TP Format-A
Input ConnectionsRJ45
Format-A Signal Pairs Used (2): B, C
Format-A Output: RJ45 (loop-through)
OutputStereo, 25 mW per channel (into 100 ohms)
Frequency Response10 Hz to 40 kHz (± 1 dB, into 100 ohms)
THD + N< 0.01% (1 kHz, 10 mW)
Noise< -90 dB (maximum gain)
Crosstalk< -85 dB (1 kHz)
< -70 dB (20 Hz to 20 kHz)
Power ConnectionsRJ45 (power provided by Format-A sender)
Power Requirements24 VDC @ 20 mA
Dimensions1.55 x 1.72 x 4.11 (3.94 x 4.37 x 10.44 cm)
Packaging Info
Package Weight0.4 lb
Box Dimensions (LxWxH)4.625 x 3.625 x 2.125"
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