Harmony A1 – Audio sounds distorted or unstable

If you experience:

• Crackling noise
• Choppy audio
• Low volume
• Missing vocals or instruments
• Unstable or distorted sound

First, check how your Harmony A1 system receives audio.

1. Are you using AUX input?

Wired Audio Connection

(For mixer / AV system)

Please check your cable connection first.
Using the wrong cable may cause:

• Low volume
• Distorted sound
• Missing vocals or instruments
• Poor sound quality

A. Mixer / AV System

If your audio source is a mixer or AV system, first check the output type on your device.

Dual XLR Output → AUX IN

Use:

Dual XLR Female to 3.5mm TRS cable

Connect:

Mixer OUTPUT L / R
↓
Dual XLR Female to 3.5mm TRS cable
↓
Oasis Aura AUX IN

Cable link:
https://www.amazon.com/Tisino-Female-3-5mm-Splitter-Cable/dp/B083JHJZ5G

Single XLR Output → AUX IN

Use:

Single XLR Female to unbalanced 3.5mm TRS cable

Connect:

Mixer OUTPUT
↓
Single XLR Female to 3.5mm TRS cable
↓
Oasis Aura AUX IN

Cable link:
https://www.amazon.com/Tisino-XLR-3-5mm-Microphone-Cable/dp/B08RCT4VSY

B. 6.35mm Output → AUX IN

Use:

Dual 6.35mm to 3.5mm cable

Connect:

Mixer OUTPUT L / R
↓
Dual 6.35mm to 3.5mm cable
↓
Oasis Aura AUX IN

Need this cable?
Please contact support@avantree.com.

C. RCA / 3.5mm Output

RCA OUT → AUX IN

Use: 

RCA to 3.5mm cable

Connect:

RCA L / R OUT
↓
RCA to 3.5mm cable
↓
Oasis Aura AUX IN

Cable link:
https://www.amazon.com/Tisino-Headphone-Auxiliary-Connecting-Amplifier/dp/B0F23NJK4L/ref=ast_sto_dp_puis?th=1

Note:
RCA cable is not included.

3.5mm OUT → AUX IN

Use:

The included 3.5mm to 3.5mm cable

Connect:

3.5mm OUT
↓
3.5mm to 3.5mm cable
↓
Oasis Aura AUX IN

Note:
This cable is included in the box.

2. Are you using Bluetooth input?

Bluetooth Connection

When using Bluetooth input, please make sure:

• Keep your phone / tablet within 10m (33ft) of the transmitter / main device
• Avoid walls or obstacles between them
• Try reconnecting Bluetooth

Important:
The 100m range applies only between the transmitter and the Auracast speakers.
It does not apply between your phone/tablet and the Bluetooth input device.

3. Still having issues?

Please update the firmware on both devices:

• Oasis Aura / transmitter
• Harmony A1 speaker(s)

Firmware Update

→ Harmony A1 Full DFU Guide

Reset After Update

After completing the firmware update:

• Reset both the transmitter and speaker(s)
• Test the audio again in normal usage conditions

If the issue continues after checking the connection and updating the firmware, please contact support@avantree.com for further help.