Lots of detail, great imaging, not much bass?

Hi B_limo,
As Milpai implied, you'll first have to work to getting good gain from your system
(generally, avoid passives) - this will enable your system to open up/come to live
better with just minimal volume.

Then, look for well balanced speakers/monitors that will play nice and full at lower
levels - usually good efficiency ones.

Hence this way, you can do away from disturbing neighbors without sacrificing much
from enjoying full range sound.

From original post (as perceived from your request), you'll likely be getting many
recommendations of speakers with tendency to be tilted upwards having limited bass
~ you might want to avoid this. Good luck!

I think a perfect pair would be a used set of Silverline Preludes. Superb bass but won't bother your neighbors as it is tight but not ultra deep, excellent imaging and beautiful with female vocals, and can be found in your price range.

"With a budget of $700 for used, I would recommend you listen to some smaller Proacs, maybe some of the Tablettes and if you can find a 1SC (great speaker) near your price level."

That would have been my first choice but I think it will be hard to come by used and within budget.

There are a pair of Paradigm Studio 20s active version (built-in amps) that would be *perfect* for your needs. All you need is a preamp or universal player with volume control to drive them, Seller is asing a very reasonable $800 for the pair...

http://app.audiogon.com/listings/monitors-paradigm-reference-active-20-black-finish-2013-05-04-speakers-75087-heath-tx

-RW-

I recommend auditioning the GoldenEar Aon 2. They retail new w/warranty at $800/pair, so you can probably get them within budget, but they need stands.

They are a good match for your needs in several ways, including your driving electronics:

o Unlike most small speakers, they are fairly sensitive at 89 dB. The passive preamp shouldn't be a problem to get reasonable listening levels.
o Their recommended amplifier power is 10-200 watts, so they can absorb a lot of power from your Classe amp.

In addition, they have a fast but extremely smooth folded ribbon tweeter responsive out to 35Khz. This indicates a very fast rise time, which translates into upper treble detail that helps define images and soundstage, not to mention getting the full spectrum of overtones that define timbral accuracy. The GoldenEar tweeter is a revelation; it is so devoid of overshoot and ringing you'll realize how much of these distortions we've been trying to ignore up to now.

The bass/mid driver is likewise very fast and responsive.

The front of the speaker is small and tapered to make for better imaging. The cabinet has no parallel lines to minimize cabinet resonances. All these factors contribute to better detail and a lower noise floor.

They are capable of good bass without being gassy, and stand-mounted speakers will not leak bass to the neighbors as easily because the bass waves won't be reinforced by--and travel along--the floor so much.

Rave reviews abound for these speakers. Many are for the big brother Aon 3, but they share the same design and exact same tweeter. They are also widely distributed so you should have little trouble getting auditioning them. When you do, however, make sure the dealer hooks them up to high quality electronics; the speakers are so affordable some dealers hook them up to a mass market receiver, and when that happens, the Aons reveal the shortcomings of the receiver.