4.1 Channel Bluetooth 5.0 Mini Audio Amplifier Receiver, 4×50 W + Active Subwoofer SUB Jack Output – Hi‑Fi Car & Home Amplifier for Speaker
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Tuesday, Nov 11
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Color: 4.1 CH With Subwoofer (No FM)
Features
- RMS 4x40W + 4.1CH Active Subwoofer SUB interface Only-- Offers you a maximum power of 800W, allowing you to control 2 pairs of high-capacity speakers and an active subwoofer (Only compatible with active subwoofers with SUB jacks). You also get an A/B switching mode, allowing you to control all the speakers together.
- High Fidelity SoundIt has a high-capacity transformer that gives you clear sound without distortion. It has a harmonic distortion less than or equal to 0.04%, which helps you listen to clear and crystal-clear music. (NOTE: NO stereo surround sound, perfect for listening to music, This model does not have radio function.)
- Multiple Connectivity: The latest version of Bluetooth 5.0, giving you a long range of 30 feet. You can connect it to your music streaming devices like PC/cell phone/laptop via bluetooth connection, 3.5mm AUX cable or headphone jack. Also supports USB port, SD/TF card port.
- Special Functions-- With the remote control function, you can change the audio settings remotely, making you less tiring and more convenient.
- Easy Operation: With the bass and treble control knobs, you can enjoy music output according to your wishes. The bright digital LED display allows you to see changing settings easily. This 4.1 channel amplifier does not have a microphone function
Voltage: 110
Manufacturer: Romicta
Maximum Supply Voltage: 240 Volts (AC)
Minimum Supply Voltage: 110 Volts (AC)
Mounting Type: Surface Mount
Package Dimensions : 10.67 x 8.39 x 2.64 inches; 2.01 Pounds
Item model number : 4.1 CH With Subwoofer (No FM)
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : July 31, 2023
Manufacturer : Romicta
Best Sellers Rank: #36,772 in Electronics (See Top 100 in Electronics) #189 in Audio Component Amplifiers
#189 in Audio Component Amplifiers:
Customer Reviews: 4.2 4.2 out of 5 stars 161 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Nov 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I heard two sets of 6 1/2 component set sitting around the house for a car that was total so I had a wild hair of building this around town out of those component set and they worked out not perfectly but OK but this little amp pushes them very well. The remote is very small so it is easy to lose, but it is very user-friendly. Volume only goes up to 30 or so, but it is loud enough.
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Reviewed in the United States on October 14, 2025 by Leon Solomon
Get it!!!! Omg it brought my grandpa's old JBLs to LIFE! Receivers cost to much and wont hold this power! This is a game changer! Bluetooth too!!! I run my music and movies through this! Its smaller than a book and has block party sound!
Reviewed in the United States on August 11, 2025 by Joyboi
I wired this in to replace a 20 year old amp that spent some time suffering in a hot attic. The sound before was muffled and sometimes difficult to understand speech. I don't honestly know if that old amp always sucked or if the capacitors degraded from poor storage. Either way, this new amp is working MUCH better. Sound is reasonably clear. And I'm not enough of an audiophile to blame even what I'm noticing on the amp versus the speakers that were shipped with another amp, so that's not even fair to judge. (Basically, they're probably cheap and crappy speakers, so not fair to judge the amp on those alone, but they're sounding reasonable and I'm fine with it.) The only thing I've noticed is from doing a left/right stereo test, it seems this amp only operates monaural, even though it drives up to 4 speakers. I do have 4 speakers, but was only going for "stereo" audio, but seems like this amp doesn't differentiate. It's better than the lackluster amp I had before, but I did kinda want stereo, but that wasn't hugely important. I'm using it with "line" input, I haven't tested Bluetooth to see if that's also the case, nor is it practical to my application. In any case, if you just want a reasonable personal use amp, this one's "fine."
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Reviewed in the United States on August 5, 2024 by Robert Showalter
Nice and compact amplifier with Bluetooth connect ability It’s hardwired to four Bose shelf speakers and a bass producing wonderful entertainment..
Reviewed in the United States on June 18, 2025 by R. Carroll
This unit works well and powers 4 Polk atrium 5 speakers well. But when I turn it on it always defaults to line input. I have to switch it to BT every time and it makes very loud beeps when switching. I may replace this unit for that reason.
Reviewed in the United States on July 1, 2024 by Kevin Armstrong
This is a really good little amplifier that I used for four powerful outdoor speakers at my pool. It’s installed in my outdoor kitchen inside the cabinet. The Bluetooth still works great has a more than reasonable range in the output is surprisingly good. This is it great product for the money.
Reviewed in the United States on September 15, 2025 by T
Send it back didn't like the way it was configured sound quality was terrible on this unit
Reviewed in the United States on February 13, 2025 by Rich Swain
I had this as a replacement idea because another one (pyle marine BT one) ended up not working at all. This one is great! Good bass and the Bluetooth is really cool! Ultimately I realized I wanted to add a mixer for a few karaoke microphones and added a separate Bluetooth transmitter in the mix too. So now I have 3 microphones and a tablet input through the mixer to the transmitter, received to this unit which pushes 2 channel stereo to a pair of great 5way 6x9s and a 12 inch sub. It fills the party bus perfectly. No window shaking, no cracking or hissing.
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Reviewed in the United States on November 15, 2024 by Scooby Tulsa