The $160 Monster Shock Plus Bluetooth Speaker is on sale at Amazon for only $35, and it's an excellent way to truly pump out the jams. Shoppers love it, saying it's "loud, clear, and built to party." ...

Check out the Marantz M1 streaming amplifier, Quad's retro Integrated Amp, Ruark's stereo console and Schiit's sold out headphone amp.