What monitors sound OK on a bookshelf?


I bought a new house with a living room that has beautiful bookshelves and layout complications which restrict my ability to use stand mounted monitors for the front channels. I want to buy some small speakers that will sound OK sitting at ear level in the bookshelves. I love Harbeths, for example, but have no idea how they would sound in this setting. Any thoughts on good options?
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Try Genelec 8040, 8050 or Focal Twin 6 Be - all are designed to sit on a studio meter bridge and should sound great on a book shelf.

I have the Genelec 8020b as office desktop speakers and they are without parallel for their size (if you like precise sound) - for a bookshelf you will need a bigger model Genelec.
I have Harbeth PSESR's on an entertainment unit, close to the wall. They sound incredible - no port, easy to place...
Omega Super Six Alnico Monitors. I had a pair and then upgraded to the Super 8 XRS Alnico. Louis could build them with the port in the front to suit your needs. Give him a call (203) 847-2800. Custom design,great sound, reasonably priced, and 30 day money back gaurantee.
Basic rules are to have a sealed cabinet or at a minimum a front facing port. Other things to look for in reviews are speakers that are mentioned to sound good close to the front wall with a narrow dispersion pattern.

One thought would be Tannoy concentric monitors like the revolution D6.
In my experience, Silverline Minuets are worth a look. They're rear-ported but are largely indifferent to placement and can benefit from rear-wall reinforcement. A couple of others monitors that are frequently recommended for use in a bookshelf are Rega R1 or RS1 and Von Schweikert VR-1. I haven't heard either, but many people swear by them for this application. Some sealed or front-ported models are tricky because they're designed to be used in free space. The question comes up pretty often; a search on the topic would give you additional ideas.