BillFitzmaurice.info

You probably won't damage them but they won't work as well as they would with the correct high pass filter.

Looks just a tad bottom heavy.

The high pass for the original compression driver won't work with piezos. They'll function, but the high pass filter isn't doing anything.

The point of trying different positions is to smooth room modes, so that means taking measurements at different listening positions in the room.

It's recommended to use multiple pieces as doing it in one piece wastes a lot of wood.

In that situation placing the mouths close together may not work as well as separating them, so experiment. 15s won't get more extension, only more output via more Vd, and I seriously doubt that more output is required.

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I'd say they'd be pretty similar in the lows, with the high frequency advantage going to the three DR250.

The width range for one driver is 15 to 20 inches, so the range for 2x10 is 30 to 40 inches. There's nothing to be gained by using a third driver. There is also nothing to be gained spending big bucks or having to make modifications using auto sound drivers that are optimized for use in a small seal...

Top 8s along with a T39 would put most clubs to shame.

Looks good, if there's enough clearance to fit the HF driver.

You can use them for this, but I wouldn't. Separate subs and mains work better, as it allows optimal placement of each, which is almost never in the same place.

Knowledge is like good food and drink, it's best when shared.

You don't need high tech to see the room response, just a phone. Use C weighting, slow response. https://play.google.com/store/apps/deta ... n_US&pli=1

You need a board with EQ on every channel. The female voice is most prominent from 500-1000 Hz, as is our hearing sensitivity, so bumping her channel there will bring her up in the mix, with perhaps some boost around 3 kHz. Cutting the guitar in those same frequencies will help as well.