US Stock Sure A2100 2 X 100Watt Class-D Bluetooth USB Line TOSLINK Input Audio Amplifier Starter w Mean Well 36V 160W GST160A36-P1M Power Adapter

Amp worked great! FOR ABOUT A WEEK!! Then nothing. I contacted the seller and he finally sent me a replacement amp that took 2 monthsto get to me. I want so much to like this amp because it sounds great with a decent pair of speakers. I hook up the new one and everything is good,FOR ABOUT 2 WEEKS AND THEN NOTHING....AGAIN!! So it was not just bad luck with the first one if the second one does the same exact thing.I got better results with a $12 Lepai amp! At least it still works after 2 years. Does not sound as good, but it works. So, in conclusion, this is an expensive piece of junk! Now all I have is a $50 enclosure and a few components I salvaged....

"100W each channel - unbelievable. No distortion for bookshelf use. Give her enough power, she will give you amazing voice. Push turn off/on. Bass Output is maybe useless for someone. But some one likes to kick ass bass. It is your choice. My main reason choice was that a bass output. "Update: 02-21-2016 Broken again. The first ordered amp shut down within firsh month. I recieved Second Amp without extra charge. The reason of second amp's shutting down is same as the first one. They insisted privatly, that if you give us good reviiew, we will send you new one. I accepted. That was my fault. How stupid am I!

This Sure amp shipped from China and took about two weeks to arrive. It came securely packaged but with no instructions.You will need a power supply as it does not come with one. I'm using a 24VDC 5amp power supply from an old soundbar.The Sure amp is powerful at up to 100 watts RMS per channel. There is some hiss present with the power on while no signal is being fed to it.If you connect a powered sub to the amp's RCA sub jack it will send the low frequency signals to your sub.The frequency cutoff is not adjustable and it's set high to work best with bookshelf speakers.Additionally the back of the unit has stereo RCA inputs, a power jack, and banana plug type 5-way speaker connectors.On the front panel there's a jack for headphones and a 3.5mm input.The volume control has an LED light around it that glows on and off(breathes}while the unit is in standby and turns off when the unit is powered on.The amp can be controlled with a remote which unfortunately does not come with the unit.There is a sensor on the front for an(optional) IR remote to control volume and input settings.I'm impressed by the power the Sure TDA7498 amp puts out for the price. At 25 cents per watt of clean sound it's a real performance bargain.

This item took 9 days to arrive which is impressive considering its coming from China free shipping. Item is well constructed but light. I am using an old moded Sony N999ES and still burning in the amplifier. I purchased a separate switching 24V 5A power supply from Amazon separately. SMAKN® AC 100-240V To DC 24V 5A 5.5x2.1mm DC Output Jack Power Supply Converter Adapter.As mentioned, the item does not come with any paperwork or instructions, it took me a minute to figure it out. The rotary dial functions not only as volume control but if you push it in, as an off and on switch as well. The rotary is surrounded by an orange light that glows on and off, in this mode it is on standby, when you push the dial in with a source running, it disappears....when you increase/decrease volume, the light activates temporarily to let you know it was turned.As mentioned, I am using a Sony N999ES DVD/SACD/CD player, connected to the unit with decent pair of interconnects. I am driving a pair of Magnepan MMG's with a modified crossover ( Foil inductors and Polypropylene Caps) connected via MIT speaker cables. I have driven these Maggies with a Carver TFM 35 and TFM 35x (both 350 watts at 4 ohms), along with a few Sony ES amplifiers as well and they are notoriously POWER HUNGRY speakers! The good news though is they have an even impedance behavior.Initial listening was neutral, but with a harsh edge. I expected this knowing that most electronics have a burn in period, but I also noticed the power supply was situated right beside the amp ( Switching power supplies are notorious for RF/EMF emissions) so I move it a few feet away....it actually took the edge off the sound.It is still getting burned in and at the moment, to say that these amplifiers are a steal is an understatement! At $50, $70 with power supply, be able to drive Maggies with very good control, and not burn up is quite a feat!Will update in a few weeks to post a better feel for this wonderful affordable amp.

I bought this amp to see how powerful it really is...and the price is excellent. It comes with no power supply, so I used my Lepai 7498 power supply which is 36v at 4.5a...and boy does this pack a punch. Much more power than my Tripath 2050 amp and much higher quality and volume than the Lepai 7498 amp. The picture shows an antenna but that is for the model with Bluetooth. This is your basic amplifier with RCA and 3.5mm inputs. The speaker connectors will accept dual banana plugs. The other nice touch is having a headphone output.I ended up finding a 24v 5a on Amazon for around $20. Get a good one...you'll want to listen to this all the time. Tons of wattage, great sound, good looking and small (8" x 5" x 2"). You'll love it!!!!!

Right channel stopped functioning after two months. Cheap Chinese junk. But it sounded great when it was working. No instructions. No power cable. The volume knob has no zero, meaning you don't know how loud it's going to be each time you plug in a different sound source. You get what you pay for.