KhornKerry

Speedydgon I have a Denon AVR 3801 Some DVD players have the DD and DTS surround decoder built-in so one can use an AMP that does not have a decoder in it , an example would be older analog tube AMP or single channel AMPs for each speaker. If you are using the Denon to decode the DD or DTS surround via a digital optical or digital RCA line then you do not need to set the DVD speaker size, level or distance. But if you set it anyway it will not affect the sound unless you use the 6 analog outputs on the DVD player. IMO JZOZ01 On my Denon AVR 3801 the 6 EXT in inputs are affected by the speaker level as set on the Denon. I put the same signal into the front left and front right input and set front left to + 12dB then set the front right to -12 db and the left speaker was a lot louder, meaning that the receiver changed the level of the EXT inputs. In short I agree with you that you do not need the adjust the speaker level at the DVD or SACD player. IMO

Efficiency rating in electronics is a measure of power in to power out. A speaker converts electrical power into acoustic power. So if you compare a speaker that produces 100dB sound pressure level (SPL) at 1 watt in and at a distance of 1 meter (100dB SPL-1W-1M), to the 90dB SPL-1W-1M speaker, the 90 dB speaker will need 10 times as much power to produce the same SPL as the 100 dB-1W-1M speaker. SO THE 100 dB SPEAKER IS 10 TIMES AS EFFICIENT AS THE 90 dB SPEAKER. Something sounding twice as loud is a perception of humans and not scientific. Think about this, a Klipschorn speaker is rated at 104dB-1W-1M. If you had a 84dB-1W-1M speaker it would take 100 times as much electrical power (100 watts) to produce the same loudness as the Klipschorn running at just 1 watt. Now think about this the Klipschorn can handle 100 watts continuous power and produces 124dB SPL which is very loud. The 84 dB speaker would need 10,000 watts (100 X 100) to produce the same loudness. It would be on fire. 10dB is a power ratio of 10 to 1 20dB is a power ratio of 100 to 1 30dB is a power ratio of 1000 to 1 60dB is a power ratio of 1,000,000 to 1

1. What Heritage speakers have you owned, currently own, or want to own? 2. What was your age when you first purchased a Heritage series loudspeaker? 3. What is your current age? 4. Why did you choose Heritage loudspeakers over another Klipsch model? 5. If you currently own some Heritage loudspeakers, and could purchase some more Klipsch speakers(new or used), which ones would you purchase? Why? 6. Do you think the upcoming Jubilee should become part of the "Heritage" line, since it was also designed by PWK? -------------------- 1. What Heritage speakers have you owned? Cornwall I, Klipschorn currently own? Cornwall I, Klipschorn want to own? I am satisfied with my system know. 2. I was 27 when I bought my first pair of Cornwalls in 1980. Bought my first pair of klipschorns in 2000 (1984 Khorns), got a second pair 1975 Khorns) in 2003. and still have all of them. 3. 50 4. First heard the Khorn, LaScala and Cornwall in the mid 70s. Clearest sound I ever heard from any loudspeaker. 5. If I lost my current system, I think I would buy the same speakers used. 6. No. I have not heard the Jubilee but think it should go in a new class of its own. I can't think of any product of any kind that I am more satisfied with, and have been satisfied with for 23 years.

DougDrake you said "So, doubling the volume (+10db) when you're already listening at a comfortable volume using 5 watts means you'll only need 10 watts to double the volume." That is not correct. It is not + 10 watts it is X 10 . If you were listing to a speaker at 5 watts and doubled the volume (approximately 10 dB increase sounds twice as loud) it be a 10 dB increase which is 5 X 10 = 50 watts.

I will try this again, the tabs upset the display. Lets compare a speaker with a sensitivity of 97dB/1 watt @ 1 meter to a speaker that is 87db/1 watt @ 1 meter. The difference is 10 dB, so the 87 dB speaker would need 10 times the power to sound as loud as the 97 dB speaker. If the difference were 20 dB (77dB sensitivity) it would take 100 times as much power to sound as loud as the 97 db speaker. Low sensitivity speakers require a lot more power to drive them. In short the 88 dB speaker will need 8 times the power to reach the same loudness as the 97 dB speaker Sound pressure level (SPL) for the 97 dB sensitivity speaker 1 watt RMS------97dB SPL 2 watts RMS----100 dB SPL 4 watts RMS----103 dB SPL 8 watts RMS----106 dB SPL 10 watts RMS---107 dB SPL 20 watts RMS---110 dB SPL 80 watts RMS---116 dB SPL 100 watts RMS--117 dB SPL 110 watts RMS--117.4 dB SPL -------------------------------- Sound pressure level (SPL) for the 88 dB sensitivity speaker 1 watt RMS------88 dB SPL 2 watts RMS-----91 dB SPL 4 watts RMS-----94 dB SPL 8 watts RMS-----97 dB SPL 10 watts RMS----98 dB SPL 20 watt RMS----101 dB SPL 40 watts RMS---104 dB SPL 80 watts RMS---107 dB SPL 100 watts RMS--108 dB SPL 110 watts RMS--108.4 dB SPL

Lets compare a speaker with a sensitivity of 97dB/1 watt @ 1 meter to a speaker that is 87db/1 watt @ 1 meter. The difference is 10 dB, so the 87 dB speaker would need 10 times the power to sound as loud as the 97 dB speaker. If the difference were 20 dB (77dB sensitivity) it would take 100 times as much power to sound as loud as the 97 db speaker. Low sensitivity speakers require a lot more power to drive them. In short the 88 dB speaker will need 8 times the power to reach the same loudness as the 97 dB speaker Sound pressure level (SPL) for Sound pressure level (SPL) for the 97 dB sensitivity speaker the 88 dB sensitivity speaker 1 watt RMS 97 dB SPL 88 dB SPL 2 watts RMS 100 dB SPL 91 dB SPL 4 watts RMS 103 dB SPL 94 dB SPL 8 watts RMS 106 dB SPL 97 dB SPL 10 watts RMS 107 dB SPL 98 dB SPL 20 watt RMS 110 dB SPL 101 dB SPL 40 watts RMS 113 dB SPL 104 dB SPL 80 watts RMS 116 dB SPL 107 dB SPL 100 watts RMS 117 dB SPL 108 dB SPL 110 watts RMS 117.4 dB SPL 108.4 dB SPL

Magnetically shielded my Cornwall, has a Sony WEGA 32" on top of it. See my post titled "Magnet shield for Cornwall speaker", under Home Theater.

See my post titled "Magnet shield for Cornwall speaker", under Home Theater.

Cornwall and TV

Tweeter

Woofer

Tweeter Squawker and woofer

Tweeter and Squawker

Magnet shield for my Cornwall center speaker. For those of you that wish to use a Klipsch Heritage speaker as a center channel in a home theater, and have a conventional picture tube TV here is a solution to the color distortion problem. The tweeter in my Cornwall (year 1980) has a rectangular magnet. First I covered the magnet with a thin layer of cardboard (about .05") next layer on top of the cardboard was .04" of steel sheet metal, then a layer of cardboard, then steel, then cardboard then steel again. This made a sandwich of 3 layers of cardboard and 3 layers of steel. I secured this together with a hose-clamp. The squawker did not need much shielding (if any) just one layer of 1/2" thick dense foam then a cylinder of steel with screws to hold it together. The woofer was done the same as the tweeter, maybe adding a 4th layer of cardboard and steel, I do not remember for sure. At this point I was still getting color distortion on the TV. Not sure what the problem was I removed the tweeter from the speaker, color distortion was still there. Next I removed the squawker, color distortion was still there. So at this point I knew the problem had to be coming from the woofer. The steel frame of the woofer was causing the distortion, so I made a single layer of steel in triangular shape that I positioned between the woofer and the squawker. I glued a thick peace of foam the woofer magnet to help support the triangular steel. This eliminated the color distortion completely and has no effect on the Cornwall performance at all as for as I can tell. This modification is 100% reversible. Note there is a thin layer of rust on the steel, this does not hurt anything. See pictures.

Thanks for the help Arkytype. Could you post a picture of your Khorns, I would love to see them. Also found some info on the web. http://www.luthierwood.com/hondrw.htm http://www.cbguitars.com/woods.htm Kerry

Lena The Klipschorn you ask about looks like Brazilian Rosewood to me. Go to most active and look at the picture in the thread "Khorns - Signed by PWK in Brazilian mahogany !!!" Kerry

The PWK pie logo.

I recently went to Maryland from Houston (1600 miles one way) and picked up a pair of Klipschorns in my 1998 Chev 1/2 ton truck. I wrapped each speaker in 4 layers of 4 mil plastic to keep the water off. Also built a palette to keep the speaker bottom about 2 inches off the truck bed. I placed the Klipschorns facing each other and separated them by 3 inches of dense foam, using ratchet straps to hold together and to hold to the truck. The side of the speakers were against the cab with some foam for protection. There was enough room left in the bed for a Belle speaker. I got the speakers back to Houston with no problems. I have a picture of my truck with the speakers on it, I was taking a picture of the house so the image of the truck is small.

Thanks HDBRbuilder I just wanted to know why the wood grain on mine looked so much different. I don't have a lot of experience with rosewood but I do know that there is more than one kind of rosewood. Kerry

Picture of my 1975 Rosewood Klipschorn. 3 of 3

Picture of my 1975 Rosewood Klipschorn. 2 of 3

Picture of my 1975 Rosewood Klipschoprn. one of 3

I recently bought a pair of Klipschorns Type K-B-RO serial # 7N### (1975). The 1975 Klipsch sales brochure shows this as rosewood with an oil finish. There was a pair of rosewood Klipschorns (signed by Paul Klipsch) on Ebay a few months back that were Brazilian rosewood. I contacted the seller and he said the Type # was K-B-BRO, I assume that the BRO is for Brazilian rosewood with oil finish. I have never seen the BRO in any Klipsch sale literature, and would like to know the difference between RO and BRO. Is the BR on the Eaby pair for Brazilian Rosewood and is it different than just Rosewood ? My speakers veneer looks different than the one on Ebay, no dark streaks and a little more brown in color. Does anyone have any idea when Brazilian Rosewood became available by Klipsch and how many of each type were sold over the years ?

"Badges? We ain't got no badges. We don't need no badges. I don't have to show you any stinking badges." In: The Treasure of the Sierra Madre "If you need me just whistle. You do know how to whistle don't you? You just put your lips together and blow." Lauren Bacall talking to Humphrey Bogart In: To Have and Have Not

So what is the highest dollar amount anyone has ever seen a pair of Klipschorns go for on Ebay? Will this pair set a record?