JJkizak

Are you using the correct meter? are you measuring according to the book? If the tube checker checks them fine maybe the problem isn't the tubes and you toasted some cathode or plate resistors. Anything burned? A marginal type Radio Shack multimeter I would not use. The new good multimeters will not load down the circuit. And if they were glowing red you might have to replace some parts anyway. Resistors don't like to be juiced with extra current. JJK

Tube checkers help but don't tell you everything. In the final analysis substitution is king, particularlly where the circuits are designed around the internal capacitance and inductance of the tube itself. Sometimes you have to go through three or four of them. But for a straight amplifier circuit that should not be necessary. Oscillator tubes in radios or tuners can check good but not function and should be substituted. The tube checker is great for checking conductance and shorts. What is that saying on TV? What's in your wallet? JJK

On a good day I can hear 40 to 14kz through my system with the volume jacked up to about -11. This is using the old CBS test records. Lots of variables though including excessive ear wax. JJK

Just wondering again with the guy's on this forum with incredable hearing if there wasn't some kind of software or working man's cd to measure the frequency response of the human ear and plot it on a chart so we could post it on the bottom of our posts. This of course would be the response of the person who is posting which would give us a little better insight on their evaluations. JJK

Gil: You are well informed. I did liken it to the "E & EP" weapon and did so wonder. I really don't know how large the fields are in the subs and started to wonder if they did affect things in the amps as far as solid state finals. Seems that can be overlooked much like a lightning hit with huge transients. I also don't know how close in proximaty the amp is to the sub field. If the finals are sitting next to the magnetic field I think I would be worried. I was just curious if someone had some knowledge of magnetic field affects on solid state components. JJK

After reading posts from this forum I noticed people having problems with the amps in the subs and wondered if the huge magnetic fields could blow the finals by redirecting the electron flow? We used huge electro-magnetic coils controlling the electron flow in high power Klystrons (100kw power output) while working on the Dewline. JJK

My question: What was the problem? What was done to fix it? Why did it fail? Since you had two of them fail what is your voltage reading? Does your home have aluminum wiring? Are all of the plugs grounded? Was there a power failure or multiple power failures? Was there a lightning storm prior to the failure? Are you feeding the sub through a power strip with transient protection? Here is a fact: You can be away from home, a thunderstorm comes in with lightning and if lightning hits even 500 ft away I garuantee it will blow that amp. You will hear a "click" when the lightning strikes and it will blow that amp. It happened to me with a Denon amp. Insurance covered it. Since most of the subs use two pronged plugs you have to protect them with MOV's. However, if the lightning is severe enough nothing will protect it. When lightning strikes nearby it puts a huge transient on all or some of your electric feeds in your home. Anything that is plugged in is taking a trip to never-never land. Another problem is power failures. Sometimes the power failure will hit you with "bam---bam---bam" severe transients and frequency changes that fry motors. I know I had to replace them at work. If your sub mysteriously goes out again it's time to "checky-checky". I'd also be checking if your placement is near a metal sewer pipe or something that can interfere with the sub. Do you have a ham radio that might be slopping interference into the sub? Does your neighbor? Vacuum cleaner? Motor? Sump pump? Are you near a radar facility? military facility with zillion watt LF transmissions to atomic subs? Is your sub on a carpet or hardwood floor? My sub vibrates like hell on the carpet (RSW-12)Is it in a hot environment? Maybe your toasting it. Is there a floor heater blowing on it? Since its rated at 2200 watts I would be looking into these things. I run my RSW-12 with the volume all the way up for about an hour at a time and it's hanging tough. Throw a good osciliscope on your plug feed and see what is riding on the waveform. You might have to install a huge filter at your home feeds to filter out all kinds of stuff except 60 hz. What other kind of equipment do you use in your home? ON & ON & ON. JJK

I don't think I would believe the difference even if I heard it. There are about a thousand other factors that could be involved not accounted for. JJK

If I find a bad cable I do my tasmainian devel impersonation and destroy it unless it's about 50 ft long then I cut it up then destroy it. JJK

The problem with silver is corrosion. So it would slowly burn out, not in. That's why serious electronics people use gold flashing for contacts that can corrode and if they use silver they will somehow protect it from the environment. Silver contacts are usually an alloy to prevent arcing and burning. Stick with the gold stuff, but then again you don't have to believe me as I only have about 50 years experience. JJK

I remember reading PWK's notes on the horn and I believe he said the mouth of the horn would be 66 feet for a 15" driver. So he did the next best thing and used the room walls. I was originally going to build a house around his design recommendations in 1976 but the cost would be about 3 million bucks that I did not have. JJK

They are very close, however you have to make sure your DVI input is rated at 1080i as some are only 720p. There is a large difference between the 720p and 1080i , the 720p being a bit choppy like film "judder". You may want to check the "COW HDV" forum or "SONY VEGAS" Forum as the heavy hitters kind of reside there. JJK

I remember when a pair of KT-88's cost about $26.00. JJK

I'm not sure if that is necessary anymore as there are balancing ckts in the amps that are adjusted at the factory. I think they adjusted for minimum distortion. JJK

If the people that sell the HDTV's ever had them set up right their would be no controversy. All of the old tv's would be in the junk pile by 2006 once the people saw how astounding the improvement in picture quality is. JJK

I have currently a 36 ft. length DVI cable (1 long, 1 short + adapter) purchased from digitalconnection.com. Also a 36 ft analog video cable for 1080i feeds. My Sony HDTV only has 720p rating on the DVI jack. The HDML cables are so expensive I would take the wall down before purchasing that cable. I also use 50 ft Toslinks and 50 ft coax. I have no problem with these lengths with the MY-HD 120 computer card feeding them to the tv. JJK

I wouldn't mess with the finish other than maybe reducing the size of the kickplate or no kickplate at all. The person operating the vacuum cleaner has to be outragiously careless to do any damage. Paint the sides and under top with black paint instead of grill cloth. It's easy and it works. You can't see anything when they are in a corner unless you have a spotlight on them. The grill cloth for the mid and high end horns can be tricky. I made mine out of the drop ceiling 1/2" squares plastic painted Corvette tobacco interior with black fibreglass screening as a base and some very thin flower pattern (by order of Starfleet Command) cloth over that with both hot melt glued to the back edges as tight as possible. Then using an iron to flatten the glued edges and then applying 1/2" square plastic over the edges with painted brass corners with a 1/4" hole drilled in them at a very precise spot. Also glued 8 5/8" nylon spacers with 1/4" holes into the grill then used 1/2" rubber inserts into the cabinet with 1/4 x20 threads. Used 2" x 1/4" dark colored fat head decorative allen bolts from home depot to fasten. Painted again using the Corvette Tobacco interior vinyl paint. The rubber inserts put the finished grill about 1/8" away from the surface of the cabinet and it is mounted in rubber kind of like the new Klipsch stuff. The 1/2 inch "U" shaped plastic was in the Oak floor transition kits at Home Depot for tile foors. The nylon spacers tighten against the rubber inserts. After doing all of this bullcrap I sure wish I could have purchased them. They look good though. JJK

I use an equalizer and an expander on the amp that drives the two K-Horns and after I added an RSW-12 subwoofer it helped fill the holes as you walk around the room and also at low volume levels really helped the bass response. My living room is an acoustic nightmare I might add. My subwoofer is fed by another Denon 7.1 processor/amp. JJK

I wonder if anyone has designed a living room to fit two K-Horns into wood designed exponential horns with the horn being 66 feet in dimension at the openning (I think this was in one of Paul Klipsch papers)to see what they sounded like. I think that's why he folded it over on itself to reduce this dimension. I wanted to do this but the house would have cost around 3 million bucks in 1976 and that was 3 million more than I had. JJK

Sounds great to me. My dealer wanted $1700.00. So I got the RSW12 instead. JJK

What if the floors are crooked? Like about 1/2" fall from the corner? And the walls are also crooked? JJK

I have the Sony KV-34HS510 (one step under the XBR) and I haven't seen anything as good, at least at Best Buy. The 510 weighs 205 lbs and has a less robust sound system. I'm not sure but I thing it uses the same picture tube as the XBR. What does make a difference is the brand of High Def tuner you get to go along with it. I use the MDR-200 for over the air and do not have cable or satellite. JJK

When you crank that baby up you won't hear any fan noise even if there is. JJK

After viewing all of the room setups with projectors, DLP's, etc, at my local audio shop (high rent district too) I came away very un-impressed especially with the projectors. They fuzzed up the picture so bad and at the same time the contrast and brightness was probably cut in half from the floor models. My Sony KV-34-HS510 blew them all away. I forgave them however as they carried Klipsch products. JJK

Try an isolation plug in each unit one at a time until the loop is broken. This usually happens because they forgot how to design power supplies about 30 years ago. (no transformers)Also if you are using two different supplies to your equipment. Use only one supply if possible. Then try the coax next. JJK