Chris Roemer
Obsessed & Proud of It
Last Activity: Today, 05:27 PM
Joined: 09-28-2005
Location: Appleton/CL
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The Frequency of resonance (Fs, Radio Shack used to call it Fo <-this being a zero), measured in "free air" (meaning no box, not even a baffle)... -
3 "notes":
1st - I don't model BSC (I just show it to you in my FR - it's "generic") or diffraction ('cause I'm lazy and don't...Leave a comment:
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2nd order HighPass: 8uF series cap, then a 1.0mH shunt coil (to ground), then a 20ohm resistor to gnd. (in parallel w/the tweeter (or "across"...Leave a comment:
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(I know you're not a fan of PMs - but I'd appreciate some of your knowledge)
Hey Bill (hope you're having a good winter up there in NH -... -
If you don't know how to model boxes ( in WinISD, free from linearteam.org ), you should teach yourself. It's fun.
The 0.6cf box has a "better"...Leave a comment:
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Al, please go away. Even Donald couldn't make sense of your sentences.Leave a comment:
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Rough ROT is that adding 1 ohm in series (somewhere along the HP) will attenuate by about -1dB.Leave a comment:
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I can't confirm any of your component values (too tiny).
A "nominal" 8n(ohm) design will typically show a Zmin around 6n.
If you...Leave a comment:
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Your box/tuning is better than MY suggestion (but too large to meet most SAFs). ;-{
In case you're not aware, you'd like your tweeter at "seated...Leave a comment:
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Wogg knows his stuff.
To "see" (understand) "baffle-step", you can use the (free) Tolvan's "Edge" software....Leave a comment:
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You'll answer your phase ?s in your sim.
My XO still looks pretty good, but change the HP filter to a 6.8uF cap and a 0.90mH coil. Raises Fc slightly...Leave a comment:
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F3 is determined by Fs and Qts(higher is better). Vb is determined by Vas and Qts(lower is better).
At a Qts right around 0.40 you can usually get...Leave a comment:
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On the woofer, you size the series coil for the proper baffle-step compensation. You'll likely need a notch (tank) filter on that one for that peak above...Leave a comment:
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Al, that would be very hard for me to believe ...
The company was AURA, BTW.Leave a comment:
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You really can't design a crossover w/out using .frd (freq. response) and .zma (impedance) data files in a simulation program.
Most here would not...Leave a comment:
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Mid 20s in 2.0 vented cu.ft. Is this the 12"?Leave a comment:
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What's the size (now) of the cabs you'd be cutting in half?Leave a comment:
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Bobinga posts here - and seems to know what he's doing. I'd give them a whirl.Leave a comment:
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Send it back. Dayton drivers are warrantied for 5 yrs. ;-)Leave a comment:
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