Help power pair of Infinity Kappa 9's please


Hi all!
I have a pair of Infinity Kappa 9's:
Nominal Impedance: 4 to 6 ohm
Power Rating: 60-340 watts RMS
Efficiency: 102 dB SPL @1 watt, 1 meter
Crossover Frequencies: 80Hz, 800Hz, 4500Hz
Frequency Response: 29Hz-45kHz +/-3dB
Physical Attributes:
1x - SEMIT Supertweeter
1x - EMIT Tweeter
1x - 3" Edgewound Voice Coil Polydome Midrange Driver
1x - 5" Polypropylene/graphite Diaphram Polygraph
2x - 12" Cast Frame , L/C Tuned Woofers
Dimensions: 59.5"H x 21.5"W" x 8"D

My room is 12'x12', I have $2500 budget and would like to play music off my computer. I need amp(s), a preamp, and a DAC i guess (is the DAC necessary at my low of a budget range?). I know my budget is low so I will be shopping for very used/old equipment. If anyone has any experience, suggestions, or words of wisdom, they would be very much so appreciated.
Thanks,
JT
jtiesel2
Driver- There are people sending me messages to my email because they do not want to hear the criticism and abrasiveness that they feel they would receive in this thread. I ask how to get some creative input on how to drive these speakers, and what i get the most of is "don't even try, you're wasting your time, just sell them" If that's not discouraging and at least slightly unappreciated then I don't know what is. Sorry, they are my babies, and when I get into a room full of people saying I can never do it and just get rid of them I get a little frustrated. I really do appreciate all the input, and what I have learned is that the general opinion is that I could do better for myself by replacing them.
no i inherited the speakers without any amp Magfan. And yeah Ive been looking at some cerwin vega's they look especially sturdy also, good for a party environment! and good prices on them. Do you recommend a particular cerwin vega model?
Jtiesel2
One last thought. You might contact a few people known for mods. My thinking is that you take something like an Adcom
565, double its filter capacitance, double the voltage capacity of the bridge rectifiers, possibly have to change the transformer, but you take a solid amp, maybe not an adcom, but a solid amp and make something capaple of handling the current needed to run the 1 ohm load that those babies throw at you. A 500 to 600.00 amp and a few mods an you would be on your way. I bet you will find that it is out there. A few phone calls is cheap. good luck. Tim
Others will hopefully chime in, but for a PARTY speaker, look no further than CV.
WTF, nobody is going to be sitting there, eyes closed, toe tapping to some incredible jazz performance. We're talkin' PARTY here.

I have ZERO idea about model, but one of the 'traditional' 12" 3-ways will get to to loud / party with a reasonable amp. Some of that bullet-resistant DJ stuff may work on the amp side.

For your 2500$ budget and the Kappas in trade, I'll bet I could get you Jailed or at least evicted.

Old / used amps, especially those which have been stored for a year or more may simply not put up with the kind of wacky abuse you may dish out. Or a friend with a little TOO much 'adult beverage' cranking up 'Stairway to Heaven' to hear it ALL!

I don't know about the Kappa9. Everyone here calls it an amp killer, so I'll lean that way, too. But nobody has remarked on what I thought the problem was....those pesky EMIT drivers and if the do or NOT have a problem at high levels with amp distortion......or maybe i'm thinking of the Heil AMT stuff?

Free speakers requiring a couple grand in amp, are probably not a big bargain!
Nobody has mentioned ...

http://www.zeroimpedance.com/

or maybe just something like these, in series ...

http://www.galco.com/scripts/cgiip.exe/wa/wcat/itemdtl.r?listtype=Catalog&pnum=L100J2R0-OHM#

Don't give up so easily. There's always a solution... But, ya, the room is small for 9's.

Innersound, Spectron, Carver Pro ZR1600... all well worth investigating as funds allow.

Some of the Macs had the option of parallel input/output with jumpers which converts to stereo amps to monoblocks and doubles the current available. There's a trick to that with most other amps but the Bryston 7B had that as an option on earlier models and it's still a factory option.