Best bookshelf monitor under $1000 new or used.

Definitely Alon Petite, incredible voice, sound stage and image. Beats my SF Concertinos and even my Proac (Flr Std). Just need to tame the highs depending on the gears you use.

A complete system:
AAD2001 $1400used
Parasound Halo A21 $1400used
Benchmark usb dac/preamp/headphone amp - $1000used

Small system with big sound.
You will be floored.

Mariusz

The Paradigm Studio 20 v4 are a great monitor for the money. Can be had for $600-$700 used here on Audiogon. They received an excellent review in a recent issue of Stereophile. The Studio 20 v3 is also very good, and can be had for slightly less.

The Silverline Minuets blew everybody away at the NYC HE Show using a garage sale CD player and a modestly powered Monarchy DAC/Integrated (so I guess you'd have lots of amp options with these speakers). That modest system managed to physically put a standup bass fully in a good-sized room that you would have expected from a good 3-way floorstander. Everybody's jaw was on the floor, so if you want to be amazed they're probably worth a look if in your price range. I'd also consider Epos.

quad 12L active, biamped, electronic crossover. NO amp expense, highly reviewed quad l series, less than $1000. I have personally commpared to many other speakers and is my speaker of choice at the moment