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Kinter K3118 2 x 15 watts Digital Audio Amplifier - the perfect choice for nearly every audio listening need.
Kinter K3118 Digital Audio Amplifier - American Designed and Engineered for Versatile Applications Including DIY Projects, Arcade, Home, Auto & More!
Texas at Heart
Inside the Kinter K3118 amplifier is a USA Designed Texas Instruments (TI) TPA3118 Class D audio amplifier IC that provides 2 X 15 watts RMS of highly efficient, detailed audio that's perfect for desktop, workbench, garage, arcade, auto, cycle or DIY projects.
A Versatile Performer
Separate Bass and Treble controls are standard on the K3118 amplifier as are gold-plated RCA left and right inputs along with a 3.5mm jack for plugging in smart phones or other equipment as the audio source. A “Direct” button bypasses the Bass and Treble circuit for listening to unaltered sound. The volume control is surrounded by a blue light indicating the amplifier is on. Connect your 4-8 Ohm speakers using the 14-16 gauge spring-loaded terminals found on the rear of the amp. The small aluminum enclosure keeps the K3118 running cool and has tabs that allow the amplifier to be mounted if required.
Anywhere and Everywhere
The K3118’s TI based Class-D design makes it an extremely efficient amplifier, and with upwards of 90% power efficiency the K3118 will sound larger than expected while generating less heat, and if operated by a battery will last longer, making it perfect for portability. Capable of operating between 4.5 – 24 Volts DC makes the K3118 ideal for most any application. Best of all, a 12 Volt DC 3 Amp power supply is included.
Please Note: The included power supply is capable of driving this amp at 2 x 15 watts per channel. To realize the full potential of this amp (>20 watts per channel), we recommend a power supply 15 to 19.5 VDC, 3A (minimum) that is capable of producing up to 60 watts of total output.
Performance-Based Features Combined with the Ultimate Support and Affordability
An Original USA Design
With so many "no name" and questionable amplifiers in the market today, you can rest assured that the K3118 has the pedigree for solid audio performance.
Led by USA Texas Instrument Engineering and quality Kinter Manufacturing, the K3118 is the combined effort of two teams working to bring you the best choice as the most affordable, efficient and quality audio amplifier for your listening needs.
Easy Connections
Quality Gold-Plated RCA Left and Right connectors and a 3.5mm audio input provide simple connectivity to TVs, Gaming Devices, Smart Phones and more.
Improved spring-terminal speaker connectors accept 14-16 gauge speaker wire, simple press and insert bare wire into the slot.
NO Frustrations!
When you have questions it shouldn't require extra effort for you to get a clear explanation and accurate answer. In addition to Spanish Speaking and other international support staff, we maintain Native English Speakers that can offer technical assistance via email or are happy to call you with the answer to your question or application issue.
Power Included
Most amplifiers don't come with a power supply, and if they do, the power supply is an afterthought, lacking the power and current ratings to fully enjoy the capabilities of the amp. KINTER includes a 12 Volt 3 Amp power supply (2.1 x 5.5 plug) that provides ample power to drive the K3118 without clipping.
All the Features You Need!
Overview and Specifications
Getting started is easy with the K3118 Amp. First, plug in the included 12 Volt 3 Amp power supply, connect 14-16 Gauge speaker wire between your speakers and the spring loaded terminals on the back panel, connect a source device using either the 3.5 mm MP3 input or stereo RCA jacks, turn the power switch to ON and the tiny Kinter 3118 Amplifier is ready to go. Using the separate Bass and Treble controls you can customize your sound, or push the "Direct" button to bypass the Treble and Bass to listen to source audio without any modification. A large front knob controls the volume and is surrounded by blue LED lighting. Mounting tabs found on the sides of the K3118 amp make it great for DIY projects or other applications where having a fixed location is required.
Specifications: • Power output: 2 x 15 watts RMS • Speaker impedance: 4-8 ohms • SNR: >102 dB • Input impedance: 47k ohms • Frequency response: 20 Hz - 22 kHz • Input sensitivity: 200 mV • Minimum THD: <0.1% • Dimensions: 4.72" D x 5.79" W x 1.65" H.
Power Supply Specifications: • Input: 100~240 VAC, 50-60 Hz • Output: 12 VDC, 3A (minimum) • 2.1 x 5.5 plug.
Please Note: The included power supply is capable of driving this amp at 2 x 15 watts per channel. To realize the full potential of this amp (>20 watts per channel), we recommend a power supply that is capable of producing 60 watts of total output.
KINTER Loves to Listen...to Our Products, and to YOU.
Our audio amplifiers and accessories can be found in over 100 world markets and have earned us the reputation of being the best choice in mini amplifiers today. Applications include home, auto, motorcycle, and boat audio systems. KINTER's manufacturing facility has grown to include the most modern SMT and PCBA manufacturing equipment. In-house engineering and a team of professional engineers combined with a motivated and highly-trained workforce provides an on-going path to new products with consistent quality and advanced features.
Noel Richard
Reviewed in Canada on March 6, 2025
After four years of use, the unit is still functioning properly.
Vaughn Harris
Reviewed in the United States on January 29, 2025
I mainly purchased this mini audio amp to replace the one I currently have because of buzzing noise it was making for the living room TV. It sounds better without that annoying buzz and does the job well. That's why my living room TV sounds better when I hooked it up to the RCA audio output behind the TV.
Robert K
Reviewed in the United States on January 27, 2025
I've used this for about a week streaming music from a PC via the 3.5 audio output and other than a 5 second or so delay while it's powering up it works great for me. It's connected to six home speakers and a powered sub (no other amps) and in a shop where it gets loud, we don't raise the volume beyond 50%. Audio quality is pretty good for the $30 spent
F. M. Langner
Reviewed in the United States on September 2, 2024
This little (and it is very small and lightweight) amplifier produces remarkably good sound, and lots of it. Since it uses a Class D output stage, it's highly efficient. In fact, according to the manufacturer, it makes 20 watts per channel RMS audio power. Since its power supply only provides 36 watts of power for it to run on, two channels of 20 watts each, or 40 watts of output is remarkable for a device that only consumes 36 watts of electricity. That's 133 percent efficiency! This claim aside, the amplifier works well, sounds great, and I highly recommend it if its power rating is appropriate for your use!
Tom Varghese
Reviewed in the United States on February 10, 2024
I recently found some hidden gems at Goodwill - a pair of bookshelf speakers in need of a worthy amplifier. After scouring the market for an affordable option, I stumbled upon these gems. Not only were they the most budget-friendly amplifiers around, but they also boasted the credibility of a name brand op-amp, Texas Instruments!To be honest, I didn't set my expectations too high, but oh boy, was I in for a pleasant surprise! This amplifier exceeded all my assumptions and then some. At this price point, it keeps things simple without unnecessary frills, but let me tell you, when I compared it to my $600 Yamaha Amplifier in "Pure Direct" mode (which essentially means no Yamaha DSP magic), this little powerhouse held its ground remarkably well.The music reproduction is phenomenal, matching the performance of its much pricier counterpart. The clarity, depth, and overall sound quality left me in awe. I can't stress this enough - for the price, this amplifier delivers an astounding performance. If you're on the hunt for an affordable yet impressive amplifier, look no further. This is the real deal, providing exceptional value for your money. Don't miss out on the musical magic this amplifier has to offer! Highly recommended!
Daniel
Reviewed in Mexico on December 25, 2024
Algo bien
Jeff M
Reviewed in the United States on November 10, 2024
I have purchased several small Kinter amps and they all work great. This one is no exception. I have it in my shop and it has plenty of power for a 3 1/2 bay shop. Sounds good to me, and none of my amps have failed with lots of use.
Dean H.
Reviewed in Canada on October 1, 2024
It works! nuff said
Max Perez
Reviewed in the United States on January 4, 2024
My use for this item is as an audio amp for an XTL1500 mobile radio used as a base station at my computer desk. When hooked up to a standard mobile speaker indoors, the fidelity and audio just wasn't to my liking, too much treble and too much background hiss for p25 audio when it is receiving. Just wasn't clean and reminded me of a cheap scanner which this is not.First thing I did when I got it before even hooking it up was take it apart and rip out the Blue LED's. It is gimmicky and cheap looking. All we need is a green or red status LED. Hooking it up was easy. I hooked the amp up directly to the speaker out on the radio (Motorola prefers you don't do this, just dont turn the radio AND amp all the way up or you will fry the speakers and possibly the amp). I found that radio volume at 55-65% works best. I turned the treble all the way down and bass up halfway and it has really cleaned up the audio to my liking. I now just use the amp as volume control and I love it. I also got a set of Pyle 200 watt speakers to go with it which work great. I imagine this will last a very long time being used like this considering its just driving police and fire chatter and not music for hours.
Terrybill
Reviewed in the United States on December 29, 2023
I needed to connect my wall and ceiling speakers to my new bedroom TV which, unlike my old one, did not have speaker jacks. This amp allowed using either the optical or headphones and I opted for the headphones so that the TV volume still controlled the external speakers. I set the volume on the amp where I needed it and haven't touched it since. The speakers sound excellent. The amp is on 24/7 in a 24x35x18 cubby behind the TV and it is never warm to the touch. I get the occasional random pop through the speakers when the TV is off but there are plenty of unrelated possible sources that I have not yet had time to investigate. I knew this speaker connectivity problem was coming one day and this unit was a super cool and easy solution.
Brad Rapp
Reviewed in the United States on April 10, 2023
What do you get? Mine was fully functional, without unexpected performance issues. Both channels evenly balanced and clear. Used for near field monitoring output volume satisfactory with included power supply. For larger spaces an upgrade would be better. Sound is clear and not harsh or brittle as some cheap class D can be. The housing is metal though thin, knobs are cheap and unattractive. The tone/direct switch functions well but feels cheap and I believe is something that will eventually fail. The tone controls seem well voiced. The direct setting may seem rolled off in the bass. However it is far more detailed with better sound staging in this mode. I would suggest a separate eq be used. With tone control the sound is not bad and may be more pleasing for people. Mine is for mobile music production, I appreciate the clarity of direct. The speaker spring clips are good, and easily accommodated 16awg wire. I can’t speak to the longevity of this amp with the entry level toy-like controls. But the price balances that out.
Jay Mielke
Reviewed in Canada on September 19, 2021
happy with how easy it was to set up and use
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