JohnA
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Posts posted by JohnA
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The tube amp's response to impedance is one of my concerns. A K-horn's impedance varies from 4.5 ohms at 55 Hz to 42 ohms at 2155 Hz. My La Scalas will be about the same.
Which tap do you use for that?
Heresies hit 70 ohms in the midrange and Cornwalls probably get up to 48 or 50 ohms.
John
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You've got a dead short through the fuse to ground. In my experience with my old Yamaha, it would not close the speaker relays with a failed resistor in the power supply. That failed resistor took all of the output transistors in one channel when it went. You may have similar problems. You need a service manual and/or professional help.
John
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Stevie Ray Vaughn!
Tinsley Ellis
Robin Trower
The Edge
John Hiatt
Jeff Beck
Santana
Jeff Baxter
See a pattern?
John
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Very high frequency oscillation? Say 15kHz?
John
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Four feet will work just fine. Mr. Paul's design for false corners are 4 feet horizontally from the corner to the outer edge. He uses a pair of those false corners in his house, now.
John
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http://www.amazon.com/exec/obidos/clipserve/B000002LT2001004/002-8568572-4373635
That picture gave me a vague feeling of a song by Loreena McKennitt. It turns out I thought of the name just before I read John's last reply; "The Lady of Shalott"! I guess the painter did his job.
John
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Either Dynamat of rope caulk will work. Rope caulk will be cheaper and easier. I've done both.
John
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Try Cornwalls first and Forte/Chorus second. Heresies will have to have a subwoofer to be satisfactory. I use 2 big subs with my La Scalas, even.
John
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Tony,
I'm glad to hear you've got news. PLEASE post and send out an e-mail if you get a firm date and time. You have a recent e-mail with the fan klub's attendees and a couple of others that tried and couldn't make it.
John
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http://www.mrspaulwklipsch.com/
Plans are being made as we speak
concerning a book signing day in Arkansas, and the latest is
to schedule it to be at the Aerospace Museum in Little Rock
with the governor Mike Huckabee in attendance. It should
prove to be an exciting time for all! The date of this book
signing has not been finalized but if all goes well with the
printing of the book we are probably looking at somewhere
around the 18th or 19th of March.
ROADTRIP!!!!!
John
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When is Mr. Paul's birthday? I can't find it in my notes. Won't he be 96 this year?
John
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Listen to them for 6 months before you make changes.
Change only to solve problems you hear.
John
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My front La Scalas were done professionally with a Minwax stain and satin polyurethane. I'll bet he used a "sealer" to keep the stain from looking blotchy. Home Depot has it in Minwax and other brands.
check out the pics on my site.
John
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You will need another power amp. If you search this site, you should find a schematic of the circuit Mr. Paul recommends for generating the center channel signal.
John
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Just flush your electrons! It only Hertz a little!
John
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It takes time to flush out all of those bad electrons.
John
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Be sure to test the bass drivers for an open voice coil. It one coil is open, you'll get diminished bass, but that driver will appear to move because it is in the same chamber with the working one. I seriously doubt the crossover is bad.
John
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P=IxV and V=IxR Where P= power, I=current, R=resistance and V=voltage.
Rearranging the above, P=V**2/R (V squared). Power amplifiers are essentially voltage sources, meaning their output voltage is pretty much the same no matter what the load is. If V is held constant and R is changed power is changed. If the resistance is doubled, the power is cut in half. If the resistance is cut in half the power doubles.
Since we don't live in a theoretical world, there are limits, particularly in the power supplies of amplifiers. As the resistance falls, the power supply is called on to put out greater amounts of current until it just can't anymore. Below that point, the power doesn't increase linearly and the amp's output voltage actually falls further limiting power.
It appears your amp is current limited just above 4 ohms (it can't double its power from 8 to 4 ohms). Going the other way from 8 to 16 ohms, it won't be limited and the power will halve, i.e. 90 watts.
If your amp is underrated and can actually put out more than 180 watts at 8 ohms, it will put out more than 90 watts at 16 ohms.
John
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Those are Klipsch components in a home-made box. The squawker is the Heresy 1.5/ Heresy II squawker and the woofer looks right. That's some sort of Klipsch network. Only the tweeter is missing. It must sound rough.
John
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There is no ideal or "good" ceiling height. It is acceptable that the ceiling height is not an integer multiple of another room dimension (or close to it). many of the music halls of old that were said to sound good had what we'd now call a catherdal ceiling (a high, inverted V). I've had two houses with that ceiling in a rectangular living room that sounded pretty darn good. If not that, I'd next choose a sloping ceiling, falling to the front of the room.
John
This message has been edited by John Albright on 01-28-2002 at 06:21 PM
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That looks like superb in-room response to me! I'd look at some rugs or wall tapestry to help with the 8k bump, it it is still there after you correct for the instrument error.
John
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Hi, Bill! How ya dooin'?
Are you all busier since September? Is that a dumb question?
John
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In all fairness, the cat-5 cable to the KLF-C7 did make a small difference. I still have trouble describing that difference, sort of smoother and more detailed.
I had the wife and both kids helping. The boys didn't mind, Cathy thought I was "touched". i had trouble typing for a couple of days afterward.
John
PWK's Book & General Info
in General Klipsch Info
Posted
Gil,
I've yet to book a flight, but I'll fly into Shreveport or Little Rock and you're welcome to ride with me.
John