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AK50MAX Stereo Audio Amplifier, 400W Home 2 Channel Bluetooth 5.0 Power Amplifier System, Home Amplifiers FM Radio, Echo, USB, SD Card,AUX with Remote Control Home Theater Audio Stereo System

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Availability: Only 5 left in stock, order soon!
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Arrives Saturday, May 2
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Style: AK50MAX(AK45 Upgrade Version)


Features

  • 400W Powerful Output The Romicta AK50MAX Digital Audio Amplifier (Upgraded version of AK45 amplifier) features a fully upgraded design with 400W+400W peak power and 50W+50W rated power, It introduces an innovative feature, supporting not only 4-16 inch passive speakers but also active subwoofers. Perfect for home karaoke, home theaters, and HiFi sound systems, it is ideal for small apartments, bedrooms, offices, basements, and garages. Its compact design fits effortlessly into bookshelves or A/V cabinets.
  • Mic Input & Output with Echo ControlEquipped with both MIC input and MIC output ports, along with an independent Echo adjustment knob, making it perfect for karaoke, announcements, or live speaking. Easily connect to an external speaker(Active subwoofer)or recording device for expanded use.
  • Enhanced Bluetooth 5.0 Wider & More Stable RangeFeatures advanced Bluetooth 5.0 technology with extended transmission range and faster pairing. Provides seamless wireless streaming up to 50ft/15m (open area), making music control more flexible.
  • USB/SD Card Plug & PlaySupports USB 2.0 flash drives and SD cards for direct MP3 playback. No need for a phone or PC simply plug in and enjoy your music library instantly.
  • Bass, Treble & Remote ControlDesigned with independent knobs for Bass, Treble, Master Volume, Mic Volume, and Echo, allowing full sound customization. Includes a remote control for convenient audio adjustments from a distance.
  • Wide Compatibility for Multiple ScenariosCompatible with mobile phones, tablets, laptops, TVs, DVD players, and more. Ideal for home speakers, bookshelf speakers, gaming setups, car audio systems, outdoor garden speakers, or small party use.

Brand: Romicta


Connectivity Technology: Bluetooth,MIC,USB,RCA,AUX,FM


Controller Type: Remote Control, Push Button


Special Feature: Built-In Bluetooth


Compatible Devices: Amplifier, PC, Smartphone, TV, Speakers


Connector Type: RCA, Bluetooth, Auxiliary, USB


Audio Output Mode: Stereo


Color: AK50MAX


Item Weight: 0.89 Kilograms


Number of Channels: 2


Package Dimensions: 8.54 x 8.11 x 3.82 inches


Item Weight: 1.96 pounds


Item model number: AK-50 MAX


Date First Available: November 27, 2025


Manufacturer: Romicta


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Worth the Investment
Style: 4.0 CH (With FM)
I’ve been really impressed with this 4-channel Bluetooth system. The sound quality is clear and powerful, and having four channels gives me the flexibility to connect multiple devices without constantly swapping cables. The Bluetooth pairing is quick and reliable, and I haven’t had any issues with dropouts or static. What I really like is how easy it is to use—controls are straightforward, and the compact design doesn’t take up much space. It’s perfect for small events, home use, or even setting up in the garage or backyard for music. The build feels sturdy, and it handles both music streaming and microphones very well. Overall, this unit delivers excellent performance for the price. It’s reliable, versatile, and makes managing multiple audio sources simple. Highly recommend if you’re looking for a quality Bluetooth 4-channel setup. ... show more
Reviewed in the United States on September 16, 2025 by Kyle MItchell

  • It's cute, and tiny, and what a bang for the buck.
Style: 2.0 CH With Opt/Coax Input
This item is exactly as advertised, and more. The sound is absolutely amazing for this little midget stereo. My son who is an IT specialist with a national corporation, and after hearing what this little baby can do he immediately got online and ordered both the speaker and this little stereo receiver for his own use in his home office. every feature, including the ECHO AND DELAY AND BLUETOOTH WORK WITHOUT ANY ISSUES. The remote is very sensitive, and all the feature work unfailingly! Both myself, my wife and our son all love this item. for the price you just can't go wrong. I don't just hand out good reviews, and were this item not up to par, I'd certainly tell you about it. It is a great unit and I know that anybody that buys this won't be disappointed, and besides all the wonderful technical stuff, it's absolutely cute to look at, and very visually appealing for those that like that type of feature. The treble and bass features are astounding for the price, and the volume, well I can't turn it up beyond 6 inside, or I'd probably deafen myself, no joke. ... show more
Reviewed in the United States on January 5, 2026 by Doc Kutner

  • The best value!
Style: 4.0 CH (With FM)
Excellent sound quality and works well. Amazed at the price. Bluetooth works well and is reliable. I have two Aiwa SX-N3550s (planning to get 2 more for surround w/ volume controllers) and the sound quality is great, with one caveat. I wish there was an equalizer with Line In! The standard output in Line In/ aux has almost zero bass. No way to adjust the EQ. This costs the Romicta 1 star. Using Bluetooth, there are like 5 EQ presets and '94' works well for me. Great bass and strong clarity in the mids and highs. This little Romicta does a great job powering my SXs. It can definitely get stupidly loud! ... show more
Reviewed in the United States on November 5, 2025 by Phillip Phillip

  • Bought as a home theater receiver
Style: 4.0 CH (With FM)
First off, I am new to this home theater world but wanted to convert my living room to a decent home theater using my existing vinyl player speakers. With a low budget, I knew this was be an interesting project Immediately, the sound is very clear, and the ability to tune it is a plus. The Bluetooth connects immediately upon turning on. I have two 4 ohm, 18w speakers. And added two 8 ohm, 34w speakers. Clear sound and bass on all 4 speakers, even when turned up all the way, which was surprising due to the cheap price of the amp. The hard part was connecting it to my tv. I first used a hdmi arc audio converter to rca to send audio from the tv to the amp. Sound was clear but experienced the sound dropping when a quiet scene in a movie/show was on, similar to someone who left a review before. But I didn’t believe it was the amp. I then bought an optical audio to rca converter, and the issue was gone. It’s been a week and it’s been going strong with audio transfer from the optical cable. The only downside is I am not able to use just one remote for everything, but i am getting used to turning on/off and controlling volume using the provided remote. The only con to this amp, which is not an issue for me, but may be for some, is the package does not come with a proper fm antenna. If you are planning to use this as an FM radio, you may want to reconsider or purchase a separate antenna. I would 100% recommend this product if you want to convert you living room to a decent home theater for a very low budget. Best investment I’ve made in years. ... show more
Reviewed in the United States on September 17, 2025 by Jay c

  • Great Upgrade for My RV Sound System.
Style: AK50MAX(AK45 Upgrade Version)
Got this for my RV,and it’s been a solid upgrade,Installation was quick and easy.The sound is clear and powerful,with more than enough volume for a small space like an RV.Bluetooth connects quickly and stays stable, which makes streaming music super easy.I like how compact it is and fits nicely into my setup.Overall,it’s been a great addition for better sound while relaxing inside the RV. ... show more
Reviewed in the United States on February 6, 2026 by NJ NJ

  • Crap
Style: 4.0 CH (With FM)
A piece of crap! Never more disappointed in products allowed on AMAZON
Reviewed in the United States on March 8, 2026 by Paul B

  • Romicta Bluetooth Stero Amplifier connects with all my bluetooth devices and drives 6 large speakers
Style: 4.0 CH (With FM)
I am very happy with the Romicta 4 Channel Bluetooth 5 Stereo Amp. I can connect from my phone, laptop, pc, or smart speaker and play music and audiobooks thru the 6 speakers I have connected. These speakers are large old wooden monster speakers that had been connected to console stereo systems we used from 1980 on. The Romicta powers these speakers without a problem and is capable of volume levels that hurt my ears and shake my house. Needless to say I normally listen at much lower sound levels where the Romicta still delivers a rich, clear, full sound. ... show more
Reviewed in the United States on November 3, 2025 by Robert H. Elwyn Jr.

  • Don't expect clear audio
Style: 2.0 CH With Opt/Coax Input
It's cheap and contained in an auspicious housing. But, from actual usage, the $14 Bluetooth amp boards are louder and sound better. I bought this because my 300x2/600x1 amp blew the GFS and needed a backup (I jam out at work). This wasn't the cheapest available but figured I'd use the housing when done and keep the amp board from this device around. I still will do that but this thing, man. It's comparable to the cheapest of cheap Walmart radios. It distorts horribly starting at the DOT mark after half-volume and it will clip. I've messed with bass and treble... Maybe it'd be nice for a home garage or something. But if you're using it in a shop with machinery and you're anal about the crispness of sound, well, steer clear. Sound quality sucks. It plainly sucks. ... show more
Reviewed in the United States on January 21, 2026 by Cheez-it Bandit Cheez-it Bandit

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