Magneplanar 3.7 - recommended preamp and amp


I've owned the 3.6 speakers years ago and really enjoyed them. I want to buy the 3.7s and also need electronics. I have a budget constraint of 4-5k for a solid state preamp and amp. I'm okay buying 2nd hand. For those who own Magneplanars can you recommend gear within my price range? My room size is 16 x 21 and I don't listen loudly. I thought even an integrated amp might work (like the Moon i7). I'd appreciate hearing some ideas.

Thanks!
newton
If you still haven't made a decision, please contact me on a Parasound JC1/JC2 option.
If you're selling a pair of JC1 and a JC2 for $4K - $5K, you need to get in touch with me!
Maggies sound quite good with tubes and if you can get a tube amp with enough power you will like it a lot. However tube power is expensive and you do need some power so you may have to go with transistors. For that I recommend a Pass Labs.

But the preamp is a different matter and for that go with tubes (your Maggies and your ears will thank you). If your amplifier has a balanced input, get a preamp that is also balanced, as that will reduce the effect of the interconnect cables. In my system I have 30 foot runs of Mogami Neglex, which is relatively inexpensive (about $200 for the pair).
"For that I recommend a Pass Labs" Why do you recommend Pass specifically? X or XA-series?
THEY NEED LOTS AND LOTS OF POWER. A DECENT AFFORDABLE AMP THAT SOUNDS GOOD ONCE WARMED UP IS THE MONSTER POWER MPA 2250 OR 3250 AMPS. NOT MADE ANYMORE BUT FOUND ON AUDIOGON . THEY ARE RATED AT 250 WATTS BUT ARE MUCH MORE POWERFUL INTO LOWER IMP.A GOOD PREAMP FOR THIS WOULD BE A GOOD TUBE PREAMP OF WHICH AUDIO RESEARCH MAKES MANY.