Hi I would like to find out if there is any big advantages to changing out my daily driver RE Audio SE10 (pre US AMPS takeover) to a SKAR VVX10 or SA-10. I have a current box built with approx 1.25cu tuned to 34hz, and will probally be using the same box. I want to try out a new sub only if it is better. Also running off a US AMPS Merline MD1D @ 1ohm. Thanks for any input.

I love those SE subs pre Us amps. Keep that thing im not sure you will get a huge upgrade from any of the choices. Ive never heard a sundown sub though.

You won't hear a noticeable difference if you only change out the driver.

If you build a new box and buy the driver you will hear a difference.(if the box is well designed..)

I would try out the VVX-10. They can take some power for sure

skar vvx says 600 rms but can easily do 1200+ rms