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Kinter

Kinter K3118-2.1 Bluetooth 5.0 Stereo Digital Receiver Amplifier 2.1 Channel Mini Hi-Fi Class D Amp 30 Watt x 2 Channels + 80 Watt Subwoofer for Home TV DIY Auto Outdoor Passive Speakers Subwoofer

    • Based on 311 reviews
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$39.98 Why this price?
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, May 21
Order within 21 hours and 25 minutes
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Features

  • Ultra-efficient amplifier with 2 x 30 watt stereo output and an additional 80 watt passive subwoofer output - perfect for home theaters, listening rooms, Hi-Fi, DIYand small offices
  • Front panel sub volume, tone/direct, treble, bass and master volume controls provide the user with the ability to easily dial-in their preferred listening preferences
  • Variety of inputs including Bluetooth 5.0, stereo RCA, and 3.5mm Aux provide flexible application options
  • Includes Quality DC Power Supply and a rear USB 5VDC charging output and Speaker Spring terminals make connecting speakers fast and easy
  • Lighted Master Volume indicates power ON and listening mode white for Line In and blue for Bluetooth operation a sleek black aluminum enclosure is aesthetically attractive and unobtrusive
  • USER MANUAL located in the LARGE image set (click on the images at the left, large images will load and manual will be displayed)

Brand: Kinter


Connectivity Technology: RCA, Bluetooth, Auxiliary, USB


Special Feature: Long Range


Compatible Devices: Television, Speaker


Connector Type: Component


Audio Encoding: Stereo


Audio Output Mode: Stereo


Surround Sound Channel Configuration: 2.1 Channel


Video encoding: MPEG-4


Product Dimensions: 6.89 x 4.92 x 1.77 inches


Item Weight: 1.75 pounds


Item model number: K3118-2.1


Is Discontinued By Manufacturer: No


Date First Available: January 10, 2021


Manufacturer: Kinter


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

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.

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Top Amazon Reviews

    • The Mini Amplifier With The Big Attitude
Review Image by Richard3107 Richard3107
It seems like I looked at every mini 2.1 amplifier here at Amazon, but none of them brought as much to the table for such a reasonable price as this Kinter K3118-2.1. The amps in the $25 - $35 price range are either just circuit boards or sandwich type cases (both of which look like high school science projects to me), and the price for the amps in full aluminum cases jumps to $70 - $80 – with most of those still requiring the purchase of a power supply. At $40, the Kinter K3118-2.1 is the happy medium with a full aluminum enclosure, a 19V 5-amp power supply, and dual Texas Instruments amplifier chips that provide all the juice I need for my DIY 2.1 system. With its good looks, solid build, and quality features, I feel that this is the hands down best value for a mini amplifier to be found here at Amazon. The Kinter K3118-2.1 is light, yet sturdy feeling, and, in my opinion, is the best looking mini amplifier here at Amazon. Both the power switch and the BT/LINE selector switch are solid and durable feeling and click audibly in a highly satisfying manner when toggled. The separate control knobs for the subwoofer, bass, treble, and master volume have a “just right” feel of tension to them with no sloppiness at all. Basically, the switches and knobs have the same feel to them as the switches and knobs on my far more expensive audio/video equipment inside my house. The Kinter K3118-2.1 really impresses me with a level of quality that belies its low cost. It’s nice to feel like I got more than I paid for once in a while, and I definitely feel that way about this amplifier. Connection can be done via Bluetooth or line, and both work flawlessly. In 2-1/2 months of use, it has never failed to connect to the Bluetooth on either my android phone or iPad, nor has it ever dropped the connections. I don’t think I own any other Bluetooth device that I can say that about, so pretty darn solid in that department. The speaker connectors are of the spring-loaded variety, and they clamp down on my 16-gauge wire tightly and securely. An interesting aspect of the K3118-2.1 that I didn’t see on any other 2.1 amplifiers is that the subwoofer is connected by bridge mode versus having some form of dedicated plug to facilitate the process. This is really neither good nor bad in my book, but it does require a little more work to make some splices to get a subwoofer connected. PRO TIP: I am using low voltage landscape wire instead of actual “speaker wire”. Braided copper wire is braided copper wire, and low voltage landscape wire or lamp wire is much cheaper than “speaker wire”. I built my speaker cabinets out of 1/2-inch MDF and used 8-ohm DROK 3-inch woofers along with these surprisingly great sounding no-name 6-ohm 3/4-inch tweeters wired to Uxcell crossovers for my mains, and an 8-ohm 6-1/2-inch Dayton Audio DC160-8 for my subwoofer. According to the product description, I lose 10 watts per channel using 8-ohm speakers instead of 4-ohm, but 20 watts per channel is fine enough for me, and I prefer the lower heat generation of 8-ohm since this system is in my garage. The sound quality far exceeds my expectations, and I rarely turn the volume knob past the quarter mark to fill my 20 x 25 garage with crisp highs, solid midrange, and some satisfying low end punch. Movie soundtracks are also quite a surprise with sharp, clear dialogue and deep rumbling bass during explosions. The Kinter K3118-2.1 appears to be a high quality product that provides a lot of bang for the $40, and warrants serious consideration for anyone building their own mini system. ... show more
Reviewed in the United States on August 22, 2021 by Richard3107 Richard3107
    • Brought my old speakers back to life
Great power for such a small and low cost package. I had a 2.1 harmon/kardon speaker system that blew the internal amp. The speakers themselves were in great shape so I used this amp to resuscitate my system. And as an added bonus, I can now directly connect my phone to my speakers via Bluetooth. The Bluetooth connection is easy and fast. There's just a quick "ding ding" to let me know that my phone is connected. Clean sound. No problems there. The LED around the main volume dial lights up blue to let you know it's connected to Bluetooth. (Otherwise it's white when on line-in mode). The dedicated subwoofer volume works well, has plenty of power, and the overall volume of the amp is definitely acceptable for the size. Very happy with this purchase. Buying another one to build a speaker kit for the garage and replace the old boombox. ... show more
Reviewed in the United States on January 2, 2023 by Gabriel's Dad
    • Performs way beyond its price
Review Image by Ryan K. Ryan K.
Review Image by Ryan K. Ryan K.
I'm not usually one to leave reviews, but this little amp has impressed me so much that I felt it deserved it. Last year we added a new back patio on to our home, and one of the upgrades we included was an outdoor audio system. While shopping for components, I couldn't justify the costs of some of the ready to go wireless/bluetooth audio systems I was seeing, so I decided to piece my own system together. After lots of research and google-fu, I decided to go with this Kinter amp for a few reasons: compact form factor, Bluetooth and wired input ability, and sufficient power output for my needs, and cheap enough that I wouldn't be upset if it didn't survive outside. I paired this up with a set of Polk Audio 8" outdoor ceiling speakers, and all in I'm only about $350 into my outdoor audio setup. All I can say is this combo has blown me away. Using my phone as the BT audio source and volume set to 50% on my phone and 50% on the amp, it's more than loud enough for us and crystal clear audio. If I turn my phone up to 100%, it's unbearably loud on the patio, and my neighbor that's more than 100yds behind us can hear it easily. I'd honestly be scared to know how badly it would blow my speakers out if I tried to go a full 100% on both ends. This thing has been going strong living it's entire life outside for the last 8 months, and has given me zero issues so far. I plan on picking up another one of these soon for the audio system I'm going to be installing in my workshop too. ... show more
Reviewed in the United States on January 19, 2024 by Ryan K. Ryan K.
    • First one defective replacement great
The first one had a faulty power supply! Wasted 15 minutes screwing around with it! Replacement sent promptly and it works fantastic. Drastically improved audio on my middle of the road tv. It was very easy to pair the receiver. Not super powerful or earth shattering just a good quality little amp. Makes loud undesirable noises when connecting and disconnecting. Very very loud and unwanted. Now I have to drive across town to return the defective product. Why the delivery guy that was just here couldn't pick it up I don't know. ... show more
Reviewed in the United States on January 13, 2023 by AmazonCustomer sinceinception
    • Best amp in this price range
Produces high quality sound, bluetooth connectivity and range is good too. You can find other 2.1 channel amps in this price range but they dont include dc power adapter or sound quality lacks. I got new store on lease and it has 4 bose ceiling speakers already installed left by the last tenant. Its weird that all speakers are linked with single wire which could be played on single channel, im not sure about ohms of these speakers and i dont bother to look at. I had 2 other bookshelf 8 ohm speakers spare in my garage and wanted to use it as other channel. i had old yamaha receiver and i tried linking them all together and that yamaha receiver blown right away. Then i ordered other mini amp similar to the specs, that claimed 40w but thats sound quality and Bluetooth strength was soo bad. But this amp able to make this setup work. Highly recommended ... show more
Reviewed in the United States on February 16, 2024 by Waqas

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