Lepai LP-2020TI Hi-Fi Mini Class D Stereo Amplifier - 20W Max at 4 Ohms, 12W Max at 8 Ohms, Digital Audio Solution with Power Supply

Easy to install. Took to work, noisy work area. All employees at my station used it. Volume control good. Use on computers or add extra speakers to unit and plug one end to tower or computer. Might need adapters for your use. Just plug and play Take it anywhere you want and replug other speakers wires.

It is an OK amplifier, not ultra high quality, but what do you expect for $30. Actually, it is a pretty good deal for a mid-fi system. If you are on a really tight budget, then this . amplifier and a pair of monoprice, and/or Dayton audio $60. Speakers is a fair deal. It says that it will take a 4ohm load, but when I paralleled 2, 8 ohm speakers on heavy bass music, it shut down to protect itself. (They are safe for anything down to about 6 ohms I guess.). If you need two pairs I guess you will have to wire them in series, (which I hate to do.). Overall, if you want a cheep system that has reasonable quality then this amplifier will do well in a pinch.UPDATE- As I used this amplifier for a few months, I discovered that, for it’s price point it is quite good. I am using it to push a pair of Monoprice 6.5 speakers. I use them for deck top use and they are adequate for casual use.It is definitely not an audiophile quality, but it gets the job done. All in all, an excellent choice for a budget system.P. S. When I said it could not push a 4 ohm load, I found out that the two pairs of speaker were both 6 ohms nominal, ( which means that they may dip down to 4 ohms, or even less, in spots, so the amplifier is indeed,, 4 ohms stable. ) so, for the money, it is a pretty good deal, for a modest sound system.

I moved into a house with existing speakers mounted to the wall of a porch. I was curious if they were any good, and if they needed replacing I’d need an amp anyway. This little guy fit the bill and the price point was great for the fit and finish. The bass and treble knobs seemed to have an odd range for adjustment, like maxed out sounded like where the mid should be, but perhaps that was some character of the found speakers. Anyway, I got it balanced out and it reproduces sound accurately. I paired this with an Echo Input, which I now use as a patio music server, and I use the Echo device to control volume. Just tell Echo to play at “10” then turn the amp knobs to the loudest you plan to listen to. Then tell Echo to back off to maybe a “volume 6” and enjoy.Later I added a headphone splitter from the Echo Input and fed that to an old Klipsch sub I had laying around. The resulting diminished output isn’t enough to wale the sub when in idle mode, but the amp handles is fine. To have the sub present without having to hit a switch on the back or leaving it on all the time, I tied the sub and this amp to an exterior smart switch. Then I hid all wires, amp, and sub in an exterior Suncast box with holes for the sub to breathe. Now I say “turn on porch” and I hear the light speaker pop indicating the amp is running and ready to jam.For reference, I’m a bit if an audiophile. I built Zaph audio BAMTM as my mains and C-notes as my surrounds for 7.1 theater. Currently running a Klipsch 12” down firing, but working on building two “full Marty” subs with 18” Ultimax. I also used to be a musician, and even played at the North Sea Jazz Fest. I just see a lot of reviews loving and hating and was curious of their background, so here’s a bit of mine.PS: I hate Bose!

Before picking up a couple of these little amps, I read up on the amp-classification issue and Lepy vs Lepai branding. This seller is right on top of the chatter, marketing the TI circuitry and such.It's been years since I paid close enough attention to audiophile issues, but I felt comfortable enough with the new product to order a couple. Right now I'm listening to one driving Polk Audio bookshelf speakers which I have running as background "infill" for a whole-house system running Chromecast Audio.And I'll be darned if I notice a substantial difference in sound quality in comparison with far more expensive receivers & speakers on other zones. At this price point, I have to call it a miracle. After I've given these neat little devices more of a workout, I'll come back and bump them up to five stars. If the miracle holds out. (Edit: Two months later, I now own three of these and have given two more as gifts. I also own Accuphase and McIntosh gear and though it's apostasy to say so, this one gives more bang for your buck. So: 5 Stars.)Update: A week later, so far so good. Have two of them hooked up and they never even get warm and I have cranked them a bit. Sound is still reasonably clean which is amazing at the price point. There can be a touch of shrillness in the upper midrange but since I'm usually listening to Pandora the source material can be the issue. One note: when you switch them off, there's an unpleasant transient pop delivered to your speakers--not loud enough to blow anything, but annoying nonetheless. Not enough to cut a star from the rating anyway.PS: Please note that I have made reference multiple times to this item's price. It's because that's the context within which I can refer to these amps as 'small miracles'. They're certainly not going to outperform a $1500 amp, but they'll definitely give your average $100-150 amp a run for their money. BTW, on both of my units, the bass and treble controls (as well as the balance control for that matter) work fine. HTH!