<font color='#8D38C9'>I know this is a little off topic, but there are quite a few other really nice speakers you can get that are nearly as small as the B(l)lose that sound infinitely better. PSB, Parasound, Monitor Audio, Gallo and several other companies make truly tiny systems that sound huge. And if you're willing to step up to slightly larger bookshelf speakers and a sub, then the audio world literally is your oyster.
Now, as to the receiver: everyone here will put in a word for the brand they personally prefer, and I'm no different. I've had great luck with Denon- I have a 3802 (might get a 3805 eventually), and I haven't heard anything for under $2500 that I'd rather have. Again, given the speakers you're using it may not matter too much, but buying more receiver than you need will allow you to keep it longer while you upgrade other stuff. Beware, though, that higher-end receivers have the shelf life of cut flowers. By the time you get them hooked up, the manufacturers have already begun designing the replacement model!
That doesn't mean your old model isn't good anymore (hey, I still like my 3802!), it just means chasing the latest & greatest is almost futile right now.
Although I'd prefer the Denon, if you can budget it you'd be better off getting a bit cheaper receiver and upgrading your speakers. If you're honestly happy with the ones you have, then just be sure to spend some time with the remote of the receiver you want. The remote will be your main interface with the unit, so get one with a remote you like (or at least don't hate). Also ask to see the owners manual or view it online- it sucks to buy a component that has an indecipherable book of gibberish.
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