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lindee

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Posts posted by lindee

    Scaling up the Classic

    in General Klipsch Info

    Posted

    Just realized, if I build this, it won't fit thru the door to the basement. I'm going to have to make it so it can be disassembled, then cut it and build it in place. I'd hate to have to leave it behind if we move.

    And right when I was getting all excited, well at least my shorts are a comfortable fit again!

    Ericcwm36.gif

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    There is no substitute for cubic inches?

    K-Horn & Spikes ?

    in Technical/Restorations

    Posted

    You can try spikes if you would like, but I can tell you from experience, trying to hold a Khorn in the air and flush with the corner is... difficult, especially by yourself. There is also the problem of not setting the spike through your foot (not a pleasant experience) while trying to maintain balance, and not drop the speaker. My suggestion is get a patient, very patient, friend to help. I ended up removing mine... from the Khorn and the foot.

    Good luck

    Eric

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    There is no substitute for cubic inches?

    Scaling up the Classic

    in General Klipsch Info

    Posted

    Gil,

    It would never have caught my attention about the impedance going back to "normal" in absence of the horn load. You're input has been highly informative, anything else you might want to share will be greatly appreciated, I'm all ears.

    Jim,

    Sounds like you're cracking some plaster and loving it.

    Is that Crate similar in design to University? What would be your guess on low end response of your sub?

    Thanks fellas,

    Eric

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    Where does this connect?

    Scaling up the Classic

    in General Klipsch Info

    Posted

    Math was never my forte, but let me see if I understand, 'cos, for me, that was a brainfull...

    Scale all dimensions by 1.414, not 1.2, right?

    If 1.414 is correct then the mouth comes to

    @ 8.5x18.375. Would I be able to modify the dimensions to 10x16 to maintain the 160 sq in., or leave as is, but only taking the width to edge of the gasket on the speaker frame? About 17.5".

    Thanks,

    Eric

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    Where does this connect?

    Scaling up the Classic

    in General Klipsch Info

    Posted

    Gil,

    Horn loading these will raise the impedance to 16 ohms correct? So hooking them up parallel will get me back to 8 and the corresponding increase in output, or is there more involved because of the horn loading?

    Thanks,

    Eric

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    Where does this connect?

    Scaling up the Classic

    in General Klipsch Info

    Posted

    Gil,

    Thanks for the info, I had thought about using a Patrician IV or a scaled up version of an Imperial build in style for the sub duties, but the Pats need corners, which are already spoken for by Khorns, and putting them at the floor/wall junction would just turn them into a jungle jim for the boys (2,4,and 6), and the Imperials would scale to an obscenely large cabinet (78x45x30). Thats why I thought about using the University cabinet, not exactly petite, but still sized within reason, and not needing a corner I can use them along a wall.

    If I can get down into the mid to upper 20's and still have everything hornloaded, I'd be very happy.

    Again, thanks for your input. This project will probably get the evil eye, but I think I can sell it.

    Eric

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    Where does this connect?

    Scaling up the Classic

    in General Klipsch Info

    Posted

    The numbers are:

    Fs is 28.1025 Hertz Qts is 0.3330

    cone area is 0.1359 m^2 Qes is 0.3453

    Vas is 22.1692 cubic feet Qms is 9.3576

    Vas is 628.0218 litres

    Re is 5.5129 ohms Rm is 154.9145 ohms R1 is 29.2237 ohms

    Voice Coil Inductance Le is 2.8015 mH

    Efficiency is 97.89 dB 1w/1m BL is 19.32 Tesla meters

    Cm is 242.221 microns/Newton Mm is 132.4525 grams

    Rm (mechanical) is 2.499 mechanical ohms (Ns/m)

    The vented box I have worked out is 14 cuft (each) tuned to 22hz which gives an F3 of 51.8 F10 around 21/22, I figured with room gain that would put me back nearly flat to 25hz. Does that all seem to jive or am I off my rocker?

    Thanks,

    Eric cwm32.gif

    Forgot this part, the Xmax is 6mm.

    Eric

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    Where does this connect?

    This message has been edited by lindee on 04-26-2002 at 12:35 PM

    Q-man's University Classic

    in Technical/Restorations

    Posted

    It's been quite a while since I've posted, so here's a

    question to jump back in with.

    I've got two 18" drivers I'm planning to use for subs.

    Would scaling the Classic up to size work or is some extra math required. I know the Patrician IV is scaled but isn't the throat somewhat different?

    Thanks for any info.

    Eric

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    Where does this connect?

    Cu colored cones

    in Technical/Restorations

    Posted

    I really don't see the problem with cast polymer for basket material, Klipsch isn't the only company using it, Audax comes to mind. They make some very well regarded drivers (Aerogel line) that use a cast polymer basket. Another advantage it has is it's about as non-resonant a material as you're likely to find.

    Don't mean get this thread off on a tangent, just my two cents

    Ericcwm16.gif

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    You take Visa?

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