noah katz

Hi Mike, "1) add mass to shift compliance;" I'm sure it was just a typo, but adding mass shifts Fs.

"... in normal, intelligent usage" huh?

You can get equivalent performance to a large unflared port from a smaller generously flared one.

I seriously doubt the cone would get hot enough to be deformed by hand; I think that would have to be several hundred degrees, and if that were the case the VC would be toast. Bent, Isn't the BP an underhung design with huge xmax? Do you expect the RLp to be an improvement?

Are the drivers shipped from the same place regardless of whom they're purchased from, or they kept in stock locally? Thinking of shipping charges. Thanks

Mike, Just curious, how much of the Mms is just the voice coil? Thanks

That's one hell of a topic for an English paper; you ought to be able to recycle it for Physics or something, too.

A nice feature of the Soundsplinter drivers is the aluminum cone for its heat dissipation capability. I've never quite understood why all the supposed power people feed their drivers in sealed, insulated boxes doesn't cause them to burst into flames. Well, paper cone drivers, anyway. Has anyone ever checked how warm the cones get? Thanks

The aluminum cone is something I like a lot. For the life of me I can't understand how the heat gets out of a tightly sealed, insulation stuffed box. I mean, I've made paint drying ovens with a leaky cardboard box and a 100 W light bulb. I can only conclude that the average power is inly a few tens of watts at most.

IIRC 1.25 lb/cu ft of fiberglass will increase the effective volume by about 25%, and decrease Qts, so you can really save some space this way.

Just curious, are you guys anywhere near when the measurements are taken, or do you wear hearing protection? I don't understand how everyone isn't deaf with the dB numbers you're talking about.

Will you be doing any measurements, and if so, outdoors to remove the effect of the car? Thanks

If they're measured properly, watts are watts no matter their source.

" however if you find that the sound is a little muddy I would suggest slimmin' down your box size " I suppose you mean muddy because of too much low bass? That could be EQ's out, or don't most car people use EQ? A smaller box will raise the Q and make transient response worse.

Mike, "3" voicecoil on the RL-p" Awesome. What's you're preferred way of being contacted about a quote on eight RL-p12/4's, and the possibility of getting surrounds from the 15" RL-s to build a bunch of passive radiators? Should I email you here or via soundsplinter.com? "does it really matter" It gives an indication of the amount of thermal mass in the voice coil assembly; the higher that is the less short term output compression there will be. Also there's more associated surface area for dissipating heat, which reduces long term compression. Mike, what kind of measures does the TC9 have for ventilating the voice coil area? Thanks a lot