I am thinking of setting up a very minimalist setup similar to others

mentioned here. It will consist of the following:

Speakers: PMC AML1 Active Speakers
Source: Either one of the following sources:
a. Slimdevices Transporter
b. Linn Majik DS
c. Squeezebox + Benchmark DAC-1

I have 2 questions:

1. Which do you think would be the best source(in terms of pure sound

quality)?
2. Do I need a preamp for any of these sources?

I'd also be interested to hear of peoples' experiences with the AML1s as this

will be my first foray into pro-audio speakers.

Many thanks in advance for your help.

Hubiedubie