There's an an artist by the name of 'Bass Mekanic' that does alot of 'car audio' type tracks. However on many of his albums there are test tones and signal sweeps as well. what's nice is that they're individual tracks so you can easily step from say 60Hz to 90Hz in 1 Hz increments or jump straight from one tone to another.

If you're using a PC or laptop a quick & free way to try them out is sign up for the free Napster trial. That's where i discovered this in the 1st place.

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1