Quite the monster
This thing is absolutely great. It's hard to tell from photos just how big this unit is - it may seem small, but it's actually quite large, and has a reassuring heft and sturdy build quality. It may be made of plastic, but it is extremely well built. There are 3 sets of sockets, with (from what I understand) slightly different noise filters, though all the sets benefit from the same Monster surge protection and overall level 2 filtering. One set is geared toward digital equipment, another for analog, and another for "high powered" gear - presumably for electricity-sucking high-watt amp setups. This unit does a wonderful job of eliminating all hum and noise - the tone from my guitar & amp was wonderfully pure, sweet, and free of artifacts. Best of all, it's portable! Great if you want the filtering & protection of a power conditioner/surge protector without having to lug around a rackmount unit. Very happy with this product, and I have to thank my sales engineer Greg Savino for recommending it to me!