Help me choose my first (used) speakers

[blackraven]

The 683's are towers and the 685's are bookshelf's. There is a big difference in the bass and weight of the sound with the 683's.

That Marantz CDP has a nice sound and probably the best at its price point. NAD and older Adcom gear has a nice sound but read the reviews on the particular models you are considering. Each brand had some great models and some not so good. I would also look at Parasound and Marantz gear especially with that Marantz CDP. Marantz gear has good synergy with other Marantz electronics.

Here is a good deal on a high current Marantz integrated amp, it has plenty of power and Marantz usually underrates their power specs. It should be able to drive any of those speakers. It also has preamp out so you can upgrade to a separate power amp if you decide to do so.

MARANTZ PM8005 Stereo Integrated Amplifier | Accessories4less

I helped a friend put together an all Marantz system with a PM5005 and a 5004 CDP all purchased from the above site, including a Pro Ject Cabon TT. It sounds great, very smooth and musical with a hint of warmth. No harshness what so ever.

To play computer music you will need a DAC. There are some very good budget DAC's available.