BillFitzmaurice.info

Klipsch has been overstating sensitivity for decades; I'm sure that Paul is spinning in his grave while muttering 'bullshit'. Since the SLA has over twice the driver count it will be at least 6dB more sensitive, while the nine tweeters will bitch slap the single tweeter of the Kilpsch.

It's not supposed to be linear, it's supposed to be logarithmic. Doubling of volume isn't twice the power, it's ten times the power.

Matthewg007 wrote: ↑Wed Apr 01, 2026 10:00 pm I worked at BOSE for 21 years…

You had no highs, you had no lows...but you've got the lows now.

It's easier to cut the hole with multiple passes, going through it in one pass bogs the router down and overheats the bit.

The OT12 crossover is 2nd order low pass, 4th order high pass at 2kHz. Never use 2nd order/2nd order, it creates polarity issues.

There are two drivers because the horn is too tall for one to work optimally or keep up with a 600w woofer. They're series wired because they have higher sensitivity than the woofer.

Yes, you'd plane a panel that's too wide but rout or sand the second side to remove any overhang.

Use the smaller side for the initial assembly, make sure all is square, then trim the second side after attaching it to the assembly. A router with a following bit is best for that, though a sander will do in a pinch.

He who dies with the most tools wins. I just used mine for the first time in years, planing a door that was 1/8" too wide for the opening.

If a panel is proud this is what you use to take it down. It's not a tool you'll use very often, but it's invaluable when you need it. https://www.amazon.com/VEVOR-Electric-H ... 15Q1Er8dhZ

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.