Name: Long-Range ARC Audio Extender over CAT (150m/492ft)
Brand: KanexPro
SKU: AUD-EXT-ARC150M

Question 1

What audio formats and sample rates does the AUD-EXT-ARC150M support?

Accepted Answer

It supports PCM 2.0ch, Dolby Digital 5.1ch, and DTS 5.1ch, with a maximum sample rate of 192kHz.

Question 2

How does transmission distance change with sample rate?

Accepted Answer

ARC audio at 96kHz and S/PDIF audio at 96kHz both reach up to 150m over a single CAT5e/6/7 cable. At the higher 192kHz sample rate, ARC audio distance drops to 90m/295ft.

Question 3

How does the transmitter select between ARC and S/PDIF sources?

Accepted Answer

A front-panel S/PDIF/ARC toggle switch on the transmitter selects the active pass-through channel: in S/PDIF mode the receiver's S/PDIF OUT carries audio from the transmitter's S/PDIF IN; in ARC mode the receiver's ARC OUT carries HDMI ARC audio from the transmitter's ARC IN. Set the switch before p

Question 4

What needs to be enabled on the TV for CEC volume control to pass through?

Accepted Answer

CEC pass-through only works in ARC mode. The TV must have its CEC feature enabled (labeled Anynet+, BRAVIA Sync, or SimpLink depending on brand), and the connected amplifier or soundbar must also support ARC and CEC.

Question 5

How is the AUD-EXT-ARC150M powered?

Accepted Answer

Both the transmitter and receiver require independent DC 5V/1A power via Micro USB. Transmitter power consumption is 0.35W max and receiver is 0.7W max. Each unit ships with its own USB shielded cable and 5V/1A power adapter.

Question 6

What are the dimensions and weight of the TX and RX units?

Accepted Answer

Each unit (transmitter and receiver) measures 3.54 in x 2.83 in x 0.79 in (90 x 72 x 20mm) and weighs 0.39 lbs (175g), in a metal black enclosure.

Question 7

There is no audio at the receiver output. What should I check?

Accepted Answer

Verify the S/PDIF/ARC toggle switch on the transmitter is set to match your connection type, confirm both TX and RX show a lit red power LED, check that the CAT cable is straight-through T568B (not crossover), and ensure cable length does not exceed 150m at 96kHz or 90m at 192kHz for ARC.

Question 8

The TV remote does not control the amplifier volume. What should I check?

Accepted Answer

CEC pass-through is only available in ARC mode, so confirm the toggle switch is set to ARC. Ensure CEC is enabled in the TV's settings (Anynet+, BRAVIA Sync, or SimpLink) and that the amplifier or soundbar supports ARC and CEC.

Question 9

Why choose the AUD-EXT-ARC150M for a display-to-amplifier audio run?

Accepted Answer

It extends HDMI ARC or optical S/PDIF audio up to 150m over a single CAT5e/6/7 cable, eliminating the need for signal repeaters or dedicated audio cabling runs between a display and a remote equipment rack.

Question 10

What makes this extender suitable for mixed-display installs?

Accepted Answer

The transmitter has dedicated ARC IN (HDMI) and S/PDIF IN (optical) inputs with a front-panel toggle, so a single kit accommodates both ARC-capable displays and legacy sources without needing separate hardware for each.