Help need speaker to match Threshold 4000 amp....


Hello, I have a newly acquired Threshold 4000 (200 wattts class A).Temporary using s/s Nikko Alpha pre-amp but thinking match this amp with Cary SLP-98L in a Month.
WHAT I NEED NOW IS A SPEAKER TO MATCH THRESHOLD 4000/CARY SLP-98L .I LIKE WARM SOUND NOT BRIGHT OR HARSH.

my own choice is a Proac Tablette 2000 or Proac Response 1sc or planar? under $1,200
Your recommendation please.Thanks a lot pescolar.
pescolar
Can anyone have any information about the input impedance of Threshold 4000..I am trying to google it and no luck yet.

Mr. Jon Soderberg ( nice guy) e-mailed me almost a week now and told me Threshold 4000 amp input Z is 15k.

Is there anyone out there can explain or how to match the right number for the pre-amp out put?

Thanks.
pescolar
But the SP-17's impedance is 60k... I think my Stasis 2 is 15k just like the 4000a
I am confused about this 4000 amp input impedance.

1.My e-mailed responsed fr Jon Soderberg regarding about 4000 ,input impedance is 15k.

2.e-mailed responsed yesterday fr.Nelson Pass,input impedance is 75,000 kohms.

3.One member from this trade :
http://trade.audiasylum.com/ca/ca.html?ca=10701
Input impedance is 75k ohms according to 4000 manuals.

With all my respect mentioned name above I do believed to Jon Soderberg for his top notch P/M & upgrade & advise
Same thing from Nelson Pass information.
Which is which now 15k or 75k ? HELP!pescolar
I apologized for last # 3.Pls.desregard..trade.audiasylum.
It should be.
http://trade.audioasylum.com/ca/ca.html?ca=10701