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EN-BTHT-5150-V1.3.2

Avantree

Created on March 27, 2025

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Interactive Setup Guide

Ensemble

Version 1.3.2

Advanced Setup & FAQs

Buttons & Indicators

Initial Setup

Microphone

LED indicator

Play/Pause/Reconnect/ Pair

OFF / ON

Headphones:

Ensemble headphones deliver crystal-clear TV sound for an immersive, effortless listening experience.

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Buttons & Indicators

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Transmitter:

The Ensemble transmitter streams TV audio to its headphones without lip-sync delays and doubles as a charging dock.

OFF / ON

AUX Input from TV

Optical Input from TV

Power Port

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Continue to setup

Buttons & Indicators

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If you're not satisfied with the sound, try switching to a different mode by pressing and holding both the '+' and 'Play' buttons.

⚠️ Important Notice

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Got it

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Failure to set the TV to PCM may cause loud "machine gun" noise.

⚠️ Important Notice

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Got it

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✔ AUX 3.5mm Audio Cable

✔ Type C Power Cable for Transmitter

✔ Optical Audio Cable

✔ USB Adapter

✔ Transmitter / Charging Dock

✔ Ensemble Headphones

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Continue

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Buttons & Indicators

What's in the box?

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1️⃣ Plug one end of the cable into TV’s "Optical Digital Audio Out" port. 2️⃣ Plug the other end into transmitter’s "Optical" port.

Connect via optical

I don't have optical

Connected

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⚡Plug the USB-C cable & adapter into a power source near the TV.

Plug in the transmitter

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Continue

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Not sure how? Visit our TV Sound Settings Guide

📺 Using your TV remote, go to: ➡ Settings → Sound → Sound Output. ✅ Select Optical.

Select the right audio settings

Continue

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Not sure how? Visit our TV Sound Settings Guide

✅ Change "Audio Format" to PCM.

Make sure "PCM" is selected

Continue

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1️⃣ Power ON:

Slide both power switches to "ON."

2️⃣ Check LEDs:

Transmitter: 🔵 Flashing blue.
Headphones: 🔴🔵 Flashing red & blue.

Power on the transmitter and headphones

Continue

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Connected

Hold them close & wait for connection

1️⃣ Wait for 5-10 seconds. 2️⃣ Once connected, the LEDs will turn solid blue 🔵.

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Troubleshoot

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🔊 Play a TV show or movie and check for sound through the headphones. ✅ Tip: To stop sound from your TV speakers, go to Settings → Audio and select "TV Speakers Off."

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Test for sound

Continue

Troubleshoot

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🔍 Check the cable connections and make sure they are fully plugged in. 🎛️ Make sure the TV’s audio output is set to the correct source (optical, AUX, or RCA). ⚙️ Try changing the TV’s audio format to PCM (for optical connections). 🔄 Restart the TV, transmitter, and headphones.

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If there’s no sound...

Continue

Need help

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Ensure the transmitter's power switch is in the "OFF" position.

Keep the transmitter OFF

Continue

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Not sure how? Visit our TV Bluetooth Settings Guide

📺 Using your TV remote, go to: ➡ Settings → Sound → Sound Output. ✅ Select Bluetooth Speaker List.

Select the right audio settings

Continue

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1️⃣ Power ON:

Slide the power switch to "ON."
LED will flash 🔴🔵 (pairing mode).

2️⃣ If LED Is Not Flashing:

Press & hold <button> until the LED flashes 🔴🔵.

Pair your headphones

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Continue

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🔍 Select your headphones from the TV’s Bluetooth list. 🔗 Wait for "Connected" message.

Select "Avantree AS50"

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Connected

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🔊 Play a TV show or movie and check for sound through the headphones. ✅ Tip: To stop sound from your TV speakers, go to Settings → Audio and select "TV Speakers Off."

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Test for sound

Continue

Troubleshoot

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After turning on the headphones, simply press the button once. They will reconnect to the last used device — no need to pair again each time.

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For next use

Got it

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If there’s no sound

Continue

Need help

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1️⃣ Plug one end of the AUX cable into the TV’s 🎧 headphone jack. 2️⃣ Plug the other end into the transmitter’s "AUX" port.

Connect via AUX

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Connected

⚡Plug the USB-C cable & adapter into a power source near the TV.

Plug in the transmitter

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Continue

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📺 Using your TV remote, go to: ➡ Settings → Sound → Sound Output. ✅ Select Headphones.

Select the right audio settings

Continue

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1️⃣ Power ON:

Slide both power switches to "ON."

2️⃣ Check LEDs:

Transmitter: 🔵 Flashing blue.
Headphones: 🔴🔵 Flashing red & blue.

Power on the transmitter and headphones

Continue

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Connected

Hold them close & wait for connection

1️⃣ Wait for 5-10 seconds. 2️⃣ Once connected, the LEDs will turn solid blue 🔵.

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Troubleshoot

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⚠️ Note

RCA adapter is NOT included.
Use RCA ports labeled "Audio Out."
Contact us for a free RCA to AUX adapter if needed.

Connect via RCA

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Both are blinking but never connect

Headphones stopped blinking first

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Troubleshooting

If they fail to connect, check which device has stopped blinking.

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Turn Bluetooth OFF on nearby devices

Your headphones might have connected to another device. Turn Bluetooth off on nearby devices to re-enter pairing mode.

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Bluetooth is off

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1️⃣ Press & hold the middle button for 5 seconds until the LED flashes 🔴🔵. 2️⃣ Double-tap the middle button to reset.

Reset the transmitter

Transmitter is reset

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1️⃣ Press & hold + & - for 10 seconds until the LED flashes & turns off. 2️⃣ Headphones will auto re-enter pairing mode 🔄🎧.

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Reset the headphones

Continue

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✅ Headphones & transmitter will connect (solid 🔵 LEDs). ✌️ Double-tap the transmitter's middle button to lock for auto-reconnection.

Lock the headphones to the transmitter

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Connected

Need help

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BLUETOOTH

RCA

HDMI ARC

AUX

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Not listed

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Other connection options

Otherwise, you'll need to connect your Ensemble another way.

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You'll need to either purchase the HAX05 to connect your Ensemble, or exchange your Ensemble for the HDMI ARC-supporting Oasis Plus.

If your TV only has an HDMI ARC port...

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Connect another way

Get support

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You can email us directly at support@avantree.com, or click the button below to redirect to our support page. We'll get back to you within 1 business day!

Reach out to us for help!

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Add FREE 24-month coverage!

Troubleshooting

You're done!