Pros I was shock with the difference it made. When I installed it on my new 2009 Concours Kawasaki motorcycle today customized. And the sound it clear. And the bass made my alpine speakers bump. WOW!
Cons No Cons about my new amplifiers.
Summary I love this product. I wish they had this model before I installed a large car amplifier. Which had to be installed in my hard case luggage bag. On the motorcycle. Now luckily. They came out with the KTP-445. The size. Fit great under my motorcycle seat. The same size as my toolbox.