Discussion in 'Subwoofers' started by clancol, Sep 24, 2003.
could some one tell me what the best way to use a spl.meter with a sub.
in fact i could just do with some help setting up my new pw2200.
I set mine up so the max peaks hit -75db as you don't get a very consistent flat reading from most subs. This has worked best for me. Some people prefer to just set the sub by ear. It depends to a certain extent on personal preference but also on your room.
I just bought a PW2200 as well - my first sub
I've found this site useful http://www.snapbug.ws/bfd.htm . It's primarily about setting up an equaliser for a sub, but it does explain how to measure the spl readings at a range of frequencies (see the section headed 'measuring sub spl levels').
I set up an overall level with the test tone from my amp, but don't really trust my ears, so I'm using my spl meter and the test tones and spreadsheet from the site to see how the sub performs in various positions in my room. It's fascinating to see how the curve does change as you move the speaker around!
You could also play the 'sweeps' and set your sub level up on the peak spl meter readings (I think that this is what Stellavision is describing), but if you have big peaks and troughs then move the sub around and see if you can smooth them out.
Hope this helps.
I'm with stellavision - I set the sub up with the meter then fiddled with the gain until it sounded right - about 4 db different from spl meter reading.
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