Bluetooth Stereo Receiver Amplifier with Treble/Bass Adjustment, 2.0/2.1 Home Audio Stereo System with AUX Input, 3.5mm Subwoofer Output, Remote Control

I am a big fan of the KEiiD products. They have taken a unique approach to audio for the mid-market consumer with a number of super high-quality products – packed with features, great engineering, excellent build quality and great price –so excellent values. I have enjoyed their KD W02 for over a year, using it with my two primary music sources –audio quality Bluetooth 5.0 (“Alexa, play The Who” – optional, I added a BT 5.0 dongle to the Alexa for best quality, but works fine with just the Alexa BT) or and then using the optical-in from my Plex Media server (using Raspberry Pi’s with a HiFiBerry optical DAC output board) to access my personal streaming library at super high quality for my family room. It ROCKS!So when they released the KD-W03 I was anxious to give it a try for my office. It shares the same small, clean unobtrusive package as the W02 – great if you need compact, super clean power, thanks to KEiiD’s choice of a D-class amp chip – no big heat syncs out the back, efficient and tiny for the power. BTW, you need to compare their extremely clean 0.1% THD to some of the same priced amps, that have up to 10x the sound distortion (1.0% THD) – trust me, the clean sound and rating matters!The W03 has 30 watts RMS per channel. Specs matter, and many amp sellers are deceptive about rating the power with PEAK power. The ONLY proper way to measure and compare power amps is the power as RMS – (root mean square) – other vendors will use PEAK and it is a deceptive measure of power. KEiD always list their products with RMS power. I appreciate that honesty. The amp rating at 30 watts is 35hz-20hz – which is fine because the sub-woofer range – 20-100Hz is going to be going to the sub-woofer anyway – so the 30W are all going to the mid/treble where power is more impactful – you’re not using that power for moving a 10” or 12” woofer which takes a lot of power – it gets plenty LOUD!The W03 adds a nice feature - a Treble and Bass equalizer. Every room in the house has a different acoustic response, and it is nice to do a little tweaking at the amp. It has great Bluetooth 5.0 support, which ensures you get full up audio-quality connections – and the pairing is easy (unlike so many other Bluetooth products that are hard to pair)It has a nice, clean remote – just the right controls –including that treble and bass.A word about support - have you ever tried to get support for an inexpensive online product? Well the KEiiD folks have been super responsive and friendly whenever I have had a question or issue. Nice folks.And then when you add the low retail price, the KD-W03 is a fantastic value – for that extra room in the house, your den, office – a great addition to my home for sure!

KEIID W-03 it the BEST mini amp that I own, and I own a lot of them! I’ve been searching for a great sounding, small amp, with the latest Bluetooth 5.0, and with honest power rating, and a full-function remote. This is it!!!The KEIID company answered my pre- and post-purchase quickly and accurately. The customer support is top-notch!The W-03 arrived quickly, and was well packaged. Instructions were excellent and easy to read and follow. Set-up was fast and easy — able to pair Bluetooth and listening to streaming music with ease.This unit comes with a full function remote control with volume, tone controls, and streaming audio control that allows be to advance and repeat songs in a Spotify streaming play list. Other amps I own don’t have full functionality remotes like this KEIID. This is GREAT!How does it sound? EXCELLENT! It uses the TPA3116 chip, as do a lot of the mini amps. But, KEIID has managed to get more quality sound from this than many other competitors. I hooked this up to Polk T15 bookshelf speakers in my office, and they sounded crystal clear - articulate, precise, punchy. Sound stage and imaging were excellent- far better than other amps that I own.I am so happy with this KEIID W-03, that I will buy more products from them. I highly recommend this!!! This was money well-spent! 😃😃😃😃😃

I used this unit to replace a ginormous high end old Kenwood AV receiver. It is less than a 10th of the size. It does the job, perhaps there is a little more distortion at higher levels, but it’s tolerable. Good value for the money

The media could not be loaded. This is the perfect size amp/receiver for a garage. The size is amazing, about 6 x 6 x 1.5 inches. Setup was super easy. A screwdriver was even included to tighten the terminals into the speaker wire. The remote has everything you need and the amplification was excellent. I have a pair of NHS speakers and they sounded great. Pretty decent bass. I wish the bass and treble could be manually adjusted with a knob rather then in set steps with the push button on the remote. But, for this price point, this little amp is a beast. Time will tell how well it holds up but, as of today, I’m very pleased with my purchase.I have to add that the response time from Keiid is amazingly fast and thorough. I’m very impressed with this company and their products!

After my older receiver in my garage died, I came across this one. It had lots of positive reviews so I gave it a try. Sadly it simply did not meet my needs. First it was far too bright for my liking. I tried to use the treble and bass controls, but I couldn’t dial it in to meet my needs. The last straw was the annoying sound it makes when Bluetooth is connected or when turned on. It has LEDs for this, but the sounds bug me. Give me less than 1 second sound, not a 2-3 second chime. As for the power, I was running on 8 ohm 4.5” speakers but immediately maxed out the amp and was not really that loud.

I was looking to upgrade my ability to listen to music in the office. Since I had a spare pair of bookshelf speakers, decided to order this little bluetooth receiver, so I can listen to Spotify through these speakers. Setup is really easy, and the compact box doesn't take up much space on my desk. Sound is just fine for the levels of volume one might use in a small room. It comes with a remote, which is handy. Having also recently purchased a decent microphone, I also have a high-end Zoom setup, which is a nice bonus.