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540W 2.1-Channel Mini Bluetooth Amplifier Board 160W×2 + 220W Subwoofer, with TWS, FM/USB/AUX, IR Remote, DC15-36V, Deep Bass for DIY Speakers & Home Audio
- POWERFUL 2.1 CHANNEL AMPLIFIER BOARD Build a complete stereo and subwoofer system with up to 160W × 2 left/right output plus 220W dedicated subwoofer output. Designed for 48 speakers and DC 1536V power, this Bluetooth amplifier board is ideal for DIY speakers, bookshelf speakers, desktop audio, home stereo systems, and custom 2.1 audio projects.
- TWS WIRELESS STEREO PAIRING Pair two identical HT21-II amplifier boards through TWS to create a wider left/right wireless stereo soundstage. Ideal for DIY wireless speakers, home stereo systems, bookshelf speaker setups, and custom audio projects when you want to expand beyond a single Bluetooth amplifier board.
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MULTIPLE AUDIO INPUTS & IR REMOTE CONTROL Enjoy flexible connectivity with Bluetooth 5.1, 3.5 mm AUX-IN, USB music playback, and FM radio. The included IR remote provides convenient control from your listening position, while dedicated Subwoofer, Left, and Right speaker outputs make it easy to build a complete 2.1 channel speaker system.
5-KNOB TREBLE, BASS & SUBWOOFER CONTROL Fine-tune your sound with independent Subwoofer Frequency, Subwoofer Volume, Treble, Bass, and Main Volume controls. Easily adjust deep bass, high-frequency detail, and overall output to match different speakers, rooms, music styles, movies, gaming setups, and DIY audio systems.
ENGINEERED FOR STABLE, RELIABLE PERFORMANCE Built around the TDA7498ETR Class-D amplifier platform, the HT21-II combines copper-wound inductors, large filtering capacitors, an aluminum heatsink, and active fan cooling for stable operation. Reverse-polarity, undervoltage, overheat, overcurrent, and short-circuit protection provide added security for long-term DIY and home audio use.
1 2.1 -channel
2 Bluetooth 5.1
3 Top-notch craftsmanship
4 New-type cover plate
5 Product
BIG SOUND. YOUR WAY
Turn your favorite speakers and subwoofer into a powerful 2.1 audio system. Enjoy fuller music, deeper bass, and a more immersive listening experience at home.
CREATE THE SOUND YOU WANT
From custom speaker builds to audio upgrades, this amplifier board gives DIY enthusiasts the flexibility to experiment, tune, and create a system thats truly their own.
TURN EVERY NIGHT INTO MOVIE NIGHT
Upgrade your TV audio with immersive 2.1 sound. Hear clearer dialogue, richer detail, and deeper bass that brings movies, shows, and games closer to the action.
MORE SOUND FOR YOUR DESKTOP
Give your PC setup the sound it deserves. Enjoy detailed stereo audio and deep bass for music, movies, gaming, and everyday entertainment.
5-KNOB TREBLE, BASS & SUBWOOFER CONTROL Fine-tune your sound with independent Subwoofer Frequency, Subwoofer Volume, Treble, Bass, and Main Volume controls. Easily adjust deep bass, high-frequency detail, and overall output to match different speakers, rooms, music styles, movies, gaming setups, and DIY audio systems.
ENGINEERED FOR STABLE, RELIABLE PERFORMANCE Built around the TDA7498ETR Class-D amplifier platform, the HT21-II combines copper-wound inductors, large filtering capacitors, an aluminum heatsink, and active fan cooling for stable operation. Reverse-polarity, undervoltage, overheat, overcurrent, and short-circuit protection provide added security for long-term DIY and home audio use.
1 2.1 -channel
2 Bluetooth 5.1
3 Top-notch craftsmanship
4 New-type cover plate
5 Product
Specifications
BIG SOUND. YOUR WAY
Turn your favorite speakers and subwoofer into a powerful 2.1 audio system. Enjoy fuller music, deeper bass, and a more immersive listening experience at home.
CREATE THE SOUND YOU WANT
From custom speaker builds to audio upgrades, this amplifier board gives DIY enthusiasts the flexibility to experiment, tune, and create a system thats truly their own.
TURN EVERY NIGHT INTO MOVIE NIGHT
Upgrade your TV audio with immersive 2.1 sound. Hear clearer dialogue, richer detail, and deeper bass that brings movies, shows, and games closer to the action.
MORE SOUND FOR YOUR DESKTOP
Give your PC setup the sound it deserves. Enjoy detailed stereo audio and deep bass for music, movies, gaming, and everyday entertainment.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Grandwood Tech Limited Return Policy
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