Avantree Audikast Plus Wireless Audio Transmitter

Quick Start Guide

Product Overview

The Avantree Audikast Plus is a wireless audio transmitter designed to send audio from your TV or other audio sources to Bluetooth headphones or speakers.

Front Panel

The front panel features:

Volume Control Buttons: [Volume Up] and [Volume Down] buttons to adjust the audio output level.
Bluetooth Button: Used for pairing and managing Bluetooth connections.
LED Indicators: Display the status of Power, Bluetooth connection, and audio codec.

Back Panel

The back panel provides the audio input and power ports:

TOSLINK (Optical In): For digital audio input from sources like TVs.
3.5mm AUX In: For analog audio input from headphone jacks or line-out ports.
RCA In: For analog audio input, typically used with the included 3.5mm to RCA adapter cable.
USB-C Power Port: Connect the included USB-C cable to power the device.

Important Notice

This document is a quick start guide. For comprehensive details, please refer to the full user manual available at www.avantree.com/support.

What's in the Box

Avantree Audikast Plus Transmitter
USB-C Charging Cable
3.5mm Audio Cable
3.5mm to RCA Audio Cable
Optical Audio Cable
User Manual

LED Indicators

LED	Status	Description
Power	Solid Red	Device is powered on.
Power	Off	Device is powered off.
Bluetooth	Solid Blue	Connected to a Bluetooth device.
Bluetooth	Flashing Blue	Pairing mode or searching for a device.
Bluetooth	Off	No Bluetooth connection established.
Codec	Solid Red	Audio codec is aptX HD.
Codec	Solid Green	Audio codec is aptX.
Codec	Solid Blue	Audio codec is SBC.
Codec	Off	No audio input detected or device is not actively transmitting.

Connection Options

The Audikast Plus supports multiple audio input types:

TOSLINK (Optical In): Connect to your TV's optical audio output for high-quality digital audio transmission.
3.5mm AUX In: Connect to your TV's headphone jack or audio output for analog audio.
RCA In: Use the included 3.5mm to RCA adapter cable to connect to your TV's RCA audio outputs (Red and White ports).

Ensure your TV's audio output is configured correctly (e.g., set to PCM for Optical output, or select Headphone/Line Out for analog outputs).

Pair and Connect to Bluetooth Speaker/Headset

Follow these steps to connect your audio source and Bluetooth device:

1. Connect Audikast Plus to your TV/Audio Source

Choose one of the following connection methods:

Optical Connection: Connect one end of the Optical Audio Cable to your TV's Optical Out port and the other end to the TOSLINK In port on the Audikast Plus. Ensure the protective caps are removed from the cable ends.
3.5mm AUX Connection: Connect one end of the 3.5mm Audio Cable to your TV's headphone jack or audio out port and the other end to the 3.5mm AUX In port on the Audikast Plus.
RCA Connection: Connect one end of the 3.5mm to RCA Audio Cable to your TV's RCA audio out ports (Red and White) and the other end to the RCA In port on the Audikast Plus.

Connect the included USB-C cable to the USB-C Power Port on the Audikast Plus and plug the other end into a powered USB port or wall adapter.

Note: For Optical connection, ensure your TV's audio output is set to 'PCM'. For other connections, select 'Headphone' or 'Line Out'.

2. Pair and Connect to your Bluetooth Speaker/Headset

Power On & Pairing Mode:

Turn on the Audikast Plus by connecting it to power. The Power LED will turn solid red.
Press and hold the Bluetooth button on the Audikast Plus for approximately 3 seconds until the Bluetooth LED starts flashing blue. This indicates it is in pairing mode.

Pair your Bluetooth Device:

Turn on your Bluetooth headphones or speaker and put them into pairing mode. Refer to your device's manual for specific instructions.
Keep the Audikast Plus and your Bluetooth device close to each other (within 1 meter / 3 feet).
The Audikast Plus will automatically search for and connect to your Bluetooth device.
Once connected, the Bluetooth LED on the Audikast Plus will turn solid blue.

You should now hear audio from your connected Bluetooth device.

Clear Pairing History

If you are having trouble connecting or want to connect to a new device:

Ensure the Audikast Plus is powered on.
Press and hold the Bluetooth button for approximately 10 seconds. The LED will flash red and blue, then turn off and on again, indicating the pairing history has been cleared.
You can now re-pair your Bluetooth device following the steps above.

Adjust the Volume

You can adjust the audio volume using the controls on the Audikast Plus:

Press the [Volume Up] button to increase the volume.
Press the [Volume Down] button to decrease the volume.

Note: If using an Optical or RCA connection, the volume may also be controlled by your TV or audio source. Ensure the TV's volume is not muted or set too low.

Troubleshooting / FAQs

Q: No audio output from my TV/Audio source.

Ensure the Audikast Plus is powered on (Power LED solid red).
Verify that the correct audio output is selected on your TV or audio source (e.g., 'PCM' for Optical, 'Headphone' or 'Line Out' for 3.5mm/RCA).
Check that the audio cable is securely connected to both the source device and the Audikast Plus.
Ensure the correct input source is selected on the Audikast Plus (it auto-detects, but ensure only one cable is plugged in).

Q: My Bluetooth headphones/speaker won't connect.

Make sure both the Audikast Plus and your Bluetooth device are in pairing mode.
Keep the devices close to each other.
Try clearing the pairing history on the Audikast Plus (see "Clear Pairing History" section) and re-pair.
Ensure your Bluetooth device is not already connected to another source.

Q: There is audio delay or lip-sync issues.

For the best experience with minimal delay, ensure your Bluetooth headphones or speaker support the aptX Low Latency (aptX LL) codec. The Audikast Plus supports aptX LL.
If your device does not support aptX LL, a slight delay may occur as the Audikast Plus will default to aptX or SBC.
Check your TV's audio settings for any lip-sync adjustment features and use them to compensate for the delay.

Q: Can I use Audikast Plus with my PC/Laptop?

Yes. You can power the Audikast Plus via a USB port on your PC. For audio output, you can either use the PC's headphone jack connected to the Audikast Plus's 3.5mm AUX In, or if your PC supports it, use a USB audio output.

Q: How do I switch between audio input sources (Optical, AUX, RCA)?

The Audikast Plus automatically detects the active audio input. For optimal performance, it is recommended to connect only one audio input cable at a time. If multiple are connected, it prioritizes them in a specific order (usually Optical > AUX > RCA).
If using Optical, ensure your TV's audio output is set to 'PCM'.

Support

For further assistance, product support, FAQs, and user manuals, please visit the Avantree support page:

https://www.avantree.com/support

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