Speakers

[Godman57]

Hey everyone,

Exciting news! I managed to get my hands on 2 Low Rider 18" Peavey speakers in 8.5 cubic foot enclosures tuned to 30 Hz. The enclosures are built with 3/4 birch ply, doubled in the front and rear, and have two six-inch ports, each twelve inches in length. Tomorrow, I'll be powering them with an EP2500 and using the built-in high pass filter at 30Hz (although I'm considering 25Hz). I'm also curious about speaker break-in. Should I go easy at first, or can I let them rip right out of the box and break in over time?

Would love to hear your advice!

 

[weltersys]

Always best to slowly advance levels and do a slow sine wave sweep at a few volts on new drivers to insure they are working properly, no buzzes. You can also verify Fb (tuning frequency) with the cone excursion should reduce at Fb, and be higher either side.
The Behringer EP2500 has ~450 watts into 8 ohms, enough to fry the voice coils with sine waves if you "let them rip".

Once you have insured the drivers are working properly, you can run them within their using limits with music.
The Low Rider 18" has 9.6mm Xmax, so if you see much more than 19.2mm (~3/4inch) peak to peak you have seen the linear excursion limit.