from my experience in 15000
go for..
amp solid audio f43 /rs-6500
speakers sony gt6948 /rs-2900
tweeter ts-20 for /rs-2250
sound stream woofer dvc picaso series /rs-3900
this is the best system i make for my client in 15k to 16k and placing the ts 20 tweeters in front u will enjoy the surrounding of ur music.