The Pyle PMX840BT is a full featured PA amp at a great price on Amazon, complete with Bluetooth that allows for wireless music playback from a smart phone. Can be used as a PA amp for live music or karaoke and has inputs for RCA jacks and a 3.5mm headphone type jack to connect an mp3 player, CD, and/or karaoke player. It also plays back music from a USB flash drive or SD card. Vocal mics connect with XLR jacks (recommended), guitars and other instruments with std. 1/4" mono phone plugs. The XLR connections are more sensitive and give more volume to mics than using 1/4" mono phone plugs, so it's worth buying an adapter (or XLR mic cable) if your mic cable isn't an XLR type. The amp has an echo effect that can be added to vocals or any of the channels with individual channel controls for effect amount, bass, treble and volume. There is also a master volume control. About the only thing it doesn't have is a foot switch to instantly remove echo when talking into a mic, although the echo isn't real strong from this amp. It also has an effects loop output/input. There are only two speaker outputs which are 1/4" mono phone plug jacks, so if you want to connect a subwoofer or more speakers it would have to be from your speakers or from a splitter adapter. I use mine with two speakers on stands and a powered subwoofer that connects to one of my speakers and it sounds great! The volume from this is plenty loud for most applications, I recently used mine to provide music for dancing at a wedding reception and was asked to turn the volume down! Do understand that this is a mono amp, not stereo. It converts the stereo signal received from your external music source into a mono signal that is sent to both of your speakers. It's not a big deal for most applications and you will be hard-pressed to find an amp with all these features at this price!
