Recent content by Dennis XYZ

No it would be quieter. That's what volume controls are for; turn it up. "Faster" and "slower" are not terms that have any objective meaning in speaker design. They are subjective words with no accepted definition (everybody's is different) and no accepted way to measure it. The quicker you can...

Vaughn, you're making this much harder than it needs to be. You've been given all the right answers but I think you're getting bogged down in the details. So back to basics. First, these are not two permanent magnets. Rather there is an electromagnet (the voice coil) inside a permanent...

The measurement method may be standardized but they don't require the projector to be calibrated for a good picture before they measure it. Most of the manufacturers just crank everything to the max and take a measurement. After calibration, most projectors are only 1/2 to 2/3 as bright as their...

Don't forget Linkwitz's general purpose circuit boards. Using them, along with his circuit examples, you can build a crossover with time alignment, baffle step compensation etc., not just a plain vanilla textbook crossover which is only marginally useful in most cases. PCB order page...

It won't tell you anything about asymmetry but you can make a wedge micrometer from a piece of stiff paper, as shown on Siegfried Linkwitz's page. It will measure peak-peak excursion while playing a test tone. You'll probably need a bigger one than the pic for the Stryke driver. Play a tone and...

Drywall screws and glue.... Drill a (small) pilot hole, drive in a screw to tap the hole, back the screw out, and squirt some yellow glue into the hole. The MDF will suck up the glue and it will dry to a hard tapped hole. After the glue is dry, mount the driver. If you mess up and strip a...

No. Your amp's protection circuits will cut in (or the amp will be toast and quit working) long before your speaker wires ever get hot. Smoke from the amp - possible. Smoke from the wires - not likely. (I shouldn't do this to someone who is obviously worried about this stuff but..... just...

No. Your amp's protection circuits will cut in (or the amp will be toast and quit working) long before your speaker wires ever get hot. Smoke from the amp - possible. Smoke from the wires - not likely. (I shouldn't do this to someone who is obviously worried about this stuff but..... just...

You're the only one who can decide that. Personally, distortion is a Big Deal for me. You asked why people need so many big drivers and that's why. Some people enjoy the sound of high distortion - it gives the bass more "punch" or "slam" when the 80Hz harmonic is louder than the 40Hz...

You're the only one who can decide that. Personally, distortion is a Big Deal for me. You asked why people need so many big drivers and that's why. Some people enjoy the sound of high distortion - it gives the bass more "punch" or "slam" when the 80Hz harmonic is louder than the 40Hz...

It's more about low distortion than winning SPL contests. It takes a lot of woofage to keep the distortion low at reasonably loud volumes - either a high quality long stroke driver like the Tumult or several lesser drivers.

A DPL12 in a sealed 75 liter sealed box models really well. http://www.htguide.com/forum/showthread.php4?t=3476 "Frankly, if you don't have the room or architectural support for a true IB sub, using arrays of the DPL12 in 75 liter boxes will give you essentially the same thing. The F10 is...

Since the Behringer is a QSC clone, I imagine the same quiet fans would work. QSC uses a 24 volt fan and these models are said to be pretty quiet. Delta AUB0824L Delta AFB0824L Panaflo (Panasonic) FBA08A24L Papst TYP8414L SanyoDenki 109RO824H402

Yep, you should use pink noise with an RTA. White noise has equal energy at each frequency. RTA and pink noise have a logarithmic energy distribution - each octave, or fraction of an octave, contains equal energy. PS - good call buying the DEQ. The RTA alone makes it worth the extra money...