800 Stereo Line Level Audio Amplifier Booster Amp for MP3, iPod, iPad, iPhone

I bought this to boost a line out on my LCD TV. Volume was so low that I had to turn the volume to the three o'clock position on my amp to get even moderate sound. I ordered this in the hope that it would improve things. It really makes a difference! I hooked up this little amp in between my TV and my main amplifier, and then turned it on, along with my regular amp. After a few tweaks on the volume control, I find that the 11 o'clock position on my main amp now gives me moderately loud sound. That doesn't sound like much, but I do have a fairly low power system, and that's inline with a decent cd player, so I am happy. In my setup, I place the volume at about 6.5 on the iBoost to achieve that without signal overloading on really loud passages. Your own mileage may vary, but it's easy to play with. The only down side to this product is the power switch. There is an on/off/volume knob which works fine, but it would be more convenient with a separate power switch. However, that's a small quibble and it doesn't take much fiddling to get the volume back to a decent level. Overall, I can highly recommend this to anyone that needs a line level boost for their TV, smart phone, mp3 player, etc. Very little intervention is needed to get a good line level volume, and the little amp doesn't introduce any noise or color the sound in any way. It also seems to sturdily constructed and the volume pot works smoothly. A good bargain.

I was looking for a solution to amplify the sound from 4K pc monitor 3.5mm output to my powered studio monitors (speakers) using RCA male connectors without having to keep adjusting volume levels separately on each speaker. I ordered this little guy and it did the trick. It boosted the output from my pc monitor to my studio monitors(speakers) with ease while sitting at my desk. The sound is super clear with no coloration, humming/buzzing/radio frequencies or distortion. There is a ton of headroom. This guy turned to 11-12 o clock gets so loud that I have to turn my speakers down a notch. Mind you my speakers or amped to 45% of full volume. Very very impressive and blown away as I ordered a preamp before this from Amazon but returned it on day one delivery as it did very little to boost the volume to acceptable levels. The knob to adjust levels feels very solid and durable and so does the box it comes in. It’s very easy to use. Turning the volume knob counterclockwise causes the box to turn off and the opposite direction turns it on as well as boosting volume.So there’s no need to reach behind the box to flip a switch. The box also stays cool on my 3hrs of using it. Highly recommended if your trying to boost levels between an rca line device and an amplifier. I am very greatful to have found this device.

I800: This thing is built like a brick $%!+house. SOLID. SUPER CLEAN PREAMP. NO DISTORTION. HIGH QUALITY CONSTRUCTION. Plenty of boost. Does EXACTLY what they say. Great for those signal missmatches. What an awesome product and deal. Well worth it!!!!! Would buy again and again....... Don't hesitate, just get it. You will NOT be disappointed. Dave

I wanted to stream music through my iPad into a sound system that routes sound to many rooms throughout the house. This setup was integtated into the construction of the house from several years ago and is a bit dated so. It uses older receiver without bluetooth. I had a bluetooth to audio out converter left over from another project and it did a good job of getting the sound from my iPad to the old reciever but the signal level output from the converter was lower than all other sources which adversely affeted the level of streamed iPad music throughout the house. I installed the iBoost 800 device between the bluetooth converter and my receiver, thus beefing up the signal level going into the receiver from the bluetooth converter. It worked great though I had to up the gain to max to match the levels of my other sources. It would be nice to have a bit more amplification on the high end. Even so, I'm please with this product.

Over the past 10 years I have purchased many in-line amplifiers. This unit performs well but does not achieve a 20 db boost. The amplified signal is clean and provides a nearly 1 to 1 reproduction of all frequencies. If you do not require a 20 db boost then this unit is the right choice.

Use with my Sansa Clip to play audio files through my old school stereo system. No added noise and very clean amplified audio to the amp. You do have to crank up the volume a bit, 6 or more on the unit volume control. Nice build quality and it comes with its own power supply! You will probably want to order a 1/8” 3.5mm male x male patch cord allowing you to plug one end into the earphone jack and the other into the front panel jack. This item is not included. I swapped cables with some far higher quality one I had but frankly, there was no audible difference. Cable length is critical, so keep them short as possible. I am very happy with unit and it far exceeds my expectations.

This could be a fine product if not for the poorly chosen power supply. Unit began broadcasting local radio stations loud and clear because the thin power supply wire had no shielding. Tried placing the wire through multiple ferite rings as a shield and even placed it on an extension cord moving the power supply in several locations... slightly fading noise still made this product inadequate for my audio use. Not willing to test it on another special power supply purchase, otherwise it may have been a good unit to keep as it feels well made and boosts volume as advertised.