Which sub is better for audio


I am looking to buy a sub to be used primarily for audio. My options are Sunfire true sub, HSU, and Bag End. I intend to spend no more than $1500. Your advice will be appreciated.
planckscale3555
Auditioning a Rel is a must. Ther are downward firing and dont move as much air as some but they are seemless and produce an untouchable quality.
I ahve tried many subs over the years & the only one I found that was musical & seamlessly blend in was an REL Stadium II.
The best sub is the Leviathan by NorthCreekMusic.com. It is a DYI 18" driver that is the best I have ever heard or seen. Check it out, nothing you can buy even comes close to this sub for the money
ditto the rel stadiumII. if you are patient they do come up every now and then for around 1500. the best i've heard.
I have listened to ALOT of subs and I would STRONGLY recommend the Genesis 900. Its the most musical sub I have listened to. 500 watt amo w/ a 15in. metal driver. Class "A" in Stereophile for along time. But let youe ear be the judge but certainly listen to the 900 if you can find one. Good Luck!