It's small, it's simple, and it sounds terrific. If you want big sound from one music source, such as a laptop computer, the IconAMP is a great way to go. If you want to connect more than one music source, mate the IconAMP with the Icon HDP preamp/USB DAC.
With 18 real watts per channel, the IconAMP will drive most bookshelf speakers to satisfying volume levels for desktop listening. You'll be surprised at the amount of power this little gem can deliver, in a form factor that won't crowd your desktop.