Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Where can I get a 4 amp power supply
Document: Someone was dreaming when they rated this unit with 45 Watts/ch! It doesn't put out even 4 watts! I measured it. It clips just before that. I even used a 10 Amp power supply for the test. Complete waste of money. I returned mine. However if you don't care about sound quality (the sound of an old tranny is acceptable to you) then it might work for you just fine.
Anyone expecting Concert Hall sound from this little amp is dreaming.Mine came with a 3amp power supply 3x12= 36w. Roughly. Choose a small bookshelf speaker no bigger than 6" woofer and this will work pretty good. I have a pair of KLH 6" but the Minimus 7 sounds much better with the LP-296FS. I don't know if a laptop power supply would blow it up @ 15v But it does get loud enough to upset the family.
Bought this little amp to power 4 in ceiling speakers in my kitchen renovation. Sound is good enough for the purpose. Only complaint so far is the FM receiver is of no use. Cannot get decent coverage... whereas my cellphone can get clear FM coverage from kitchen. But otherwise has enough power to get my Ipod blasting through the 4 ceiling speakers.
The power rating shenanigans continue at the power supply. The unit says "Input power: 14.4V 5A" (72W) "Output power: 45W x 4" (180W). If that weren't absurd enough, the power supply that comes with it says it's output is 12V @ 3A (36W). This thing is really just a mess.
Mine came with a display that did not work. Half of the LED segments would randomly work making it impossible to read it. I was able to get the USB reader to work but the SD reader didn't seem to work. It had about as much power as I expected from the price which is way less than 45 watts x 4. I would guess more like 10 watts RMS x 4 if that. There was also some digital noise present between every MP3 song.
The amp does a decent job! I use a 2A 12V power supply and it gets loud enough. Have this mounted under my workbench in the garage for some tunes while I&#34;m out there.
Bought in January, and my wife was diagnosed with cancer so fixing this little amp for her laptop and tablet was not on my mind after surgery and more to come and numerous Dr appointment s I decided to built her little system I made a nice mount and used celestion speakers only to plug in the I phone and the thing started smoking so I removed power supply and decided if its dead its dead , so I connected a cd player to it and the little thing sounded wonderful .
Inside the box, this item was packaged in a plastic bag with no paperwork. Unpacking it, I immediately noticed that the ground pin was missing from the power cord. This threw up a red flag, but I went ahead and tried it. It plays, but not much volume. I tried a different power supply, no change. Then I switched it out with a Lepai LP20-20 which is supposed to have half the wattage, and the 20-20 was much louder.
dead right out of the box. i guess 4 the price u get what u pay 4. would love to give this 1/2 star but can't
I have bought this and the Lepai LP-168HA. Depending if I need to have 4 channels or two with a passive sub.Best amp for the money anywhere. Makes my bedroom TV sound almost as good as the living room Denon system at a great price
Answer: Don't worry about power supply,our item comes with it.