Question 1

Does this sub automatically turn on and off?

Accepted Answer

This has a standby mode. When there is no input from the source, it goes into standby. But the power switch is either on or off. If you want it to be off, you will have to do it manually.

Question 2

Dose this item have a built in amplifier ?

Accepted Answer

Yes 300W RMS very tight powerful sub for the current shell shocker price hard to beat deal. This has a much better reputation than the 550 which people have reported multiple reliability issues with.

Question 3

I have never owned a subwoofer before and don't know what to expect with this hooked up to my surround system.  I don't want it to over power the other speakers when watching a movie.  Will it automatically adjust to the volume I'm watching a movie at? 
Thanks!

Accepted Answer

Most subs do adjust in certain ways yeah, but there are settings in your receiver that let you decide how powerful or loud you want your subwoofer to be in comparison to the other speakers in your system. I actually bought this exact subwoofer a couple months ago. Liked it, didnt love it. Having great bass is something you dont want to skimp on. However, for $150, this is a decent start up sub. Over the years i've learned you really do get what you pay for when it comes to subwoofers.

Everyone is different when it comes to their sound preferences. Always play around with your speaker and receiver/amp settings before deciding whether you're satisfied or not.

Questions & Answers