how many ways to hook up a subwoofer

@ellajeanelle    +1.

A requirement is having a subwoofer that has a 'high level input'. Connects from the output of the amp. This way it will respond to the character of the amp. If the amp is punchy you'll get that punch. If you run it from the preamp you will bypass the amp and NOT get that punch.

This was a VERY noticeable improvement in bass quality! (thanks Paul McGowen)

You can run a wire from the back of the Amp to the 'High level input' OR (my preferred method) go from the speaker with a short wire to the High level input.

Don't worry, the high level input just needs a tiny bit of signal and puts NO strain on the amp. The sub amp does all the heavy lifting.

@ozzy ,

would you mind mentioning the model number of the Jensen ISOMAX? I have a vintage system and that might be a good option for me, thinking of adding a sub to it.

thanks

Sure, it is the Jensen ISO-MAX SP-2SX 2 channel unit. I however am using 2 of them since my subs are very far apart.

ozzy

@chiefsteward1 you can run wire from your amp to the speakers and then from the speakers to the sub.The sub first then on to the speakers will work too.I use a y connector from the pre so I can make use of the built-in equalizer in the sub.There are a few other ways to do it also.