Best Kept Speaker Secret?


OK all you speaker experts out there here goes. There are always "sleepers" or "exceptions to every rule or cost" in high end audio equipment. In your opinion what is the best kept secret or exception to the cost for the very best speaker you can buy for $4000 or less (Used). Your feedback will be greatly appreciated toward building my short list. Thank you.
golfnut
Although the above choices are wonderful, my personal favorite, and the pair I own, are the Vandersteen 3A Signatures.
ditto on the bigger Magnapans.. I've heard these demo'd. a few years ago and they are great.
ProAc's "ultimate in compact speaker design" the Tablette 2000 Signature. It's larger than their 1SC, contains all of the Response line's features, but sells for less; a true marketing anomaly and gift to the faithful.
Gallo Acoustics, the Reference or the Ultimate (I have the latter). Weird looking, wonderful sounding. I thought my ProAc Response 3s were pretty good until I got the Ultimates. I've seen them used for $2K, which is the buy of the century.
Westlake Lc4.75 Pro. Retail new is $999. Many, many studios use these to monitor the recording process.

If it's good enough for the guys recording your records, it's more than enough to playback.

These are the ultimate in resolution. Perfect for a small room...