What sub under a grand?


Looking to replace my rel t1 which is having problems. My current setup is Parasound a21 amp and the Parasound p5 pre amp,Marantz sr 5007 avr and the Marantz sa8001 sacd. Main speakers Vienna Acoustics Mozart grand. 70% is for music and 30% movies, gaming and tv.
jughead
I'm happy with the psa, I did a side by side comparison with my rel t1, and the rel failed! the psa was deeper and fuller sounding. The rel would rattle with ht duty and the psa didn't break a sweat, and the same goes with music. speed timing? the psa integrated well with my main speakers. it's made well and made in the usa. just because it's not 2k and a big name yet doesn't mean its junk. as far as watts i don't buy into that shit either just like I don't buy into 10k speaker cables. the audio world is full of snake oil just like everything else. doe's a battery pack on your speaker cable improve sound? it must people fork out 2 t0 14k for this great tech. I think speed and timing is a matter of speaker placement and having it dialed in right.
I'm liking the PSA so much I think i'm gonna return it for it's big brother the xs30se which offers two 15" drivers if the xs15se can produce this much bass with one driver I can only imagine what two drivers can do. "just hope its fast enough".
im still not seeing a problem with timing and speed with the psa? it hangs with music like lamb of god i dont know how much faster you can get then that?
So as time went on and my main speakers changed the PSA didn't fit the bill anymore, with its 15 inch driver music was always a bit muddy. so I hooked my REL t1 back up and it was like magic! fast, tight and very musical but lacked weight. so I ordered two REL t9's which should fit the bill. after reading many articles about subs I think the majority of people agree, get two subs or get none. After all we don't buy one speaker, right?