richieb Posted June 22, 2016 Share Posted June 22, 2016 So there is a pair of KHorns and amplifier for sale on AGon, $7K. All new special speaker wiring and capacitors and the included 250wpc Parasound amp. The reason for the "massive overkill" is so the speakers arent fried by having delivered a "square wave" from the amp. Huh! I'll admit to not being the sharpest knife in the drawer but I'm lost. So I guess I'm sure to fry my KHorns by delivering a wimpy 3.5 watts from my 2a3's? I guess I've been going about high effiency speakers all wrong, back to the drawing board. Quote Link to comment Share on other sites More sharing options...
garyrc Posted June 22, 2016 Share Posted June 22, 2016 So there is a pair of KHorns and amplifier for sale on AGon, $7K. All new special speaker wiring and capacitors and the included 250wpc Parasound amp. The reason for the "massive overkill" is so the speakers arent fried by having delivered a "square wave" from the amp. Huh! I'll admit to not being the sharpest knife in the drawer but I'm lost. So I guess I'm sure to fry my KHorns by delivering a wimpy 3.5 watts from my 2a3's? I guess I've been going about high effiency speakers all wrong, back to the drawing board. Whenever this comes up, there is a debate on the forum ... looking forward to it ! Quote Link to comment Share on other sites More sharing options...
chriswhotakesphotos Posted June 22, 2016 Share Posted June 22, 2016 Square waves fry speakers now? Synth players must go through tons of them! 1 Quote Link to comment Share on other sites More sharing options...
Budman Posted June 22, 2016 Share Posted June 22, 2016 a-gon https://www.audiogon.com/listings/full-range-klipsch-klipschorn-corner-speakers-w-amp-2016-06-21-speakers-91344-granada-hills-ca Quote Link to comment Share on other sites More sharing options...
richieb Posted June 22, 2016 Author Share Posted June 22, 2016 Thanks Budman - them are the ones. Quote Link to comment Share on other sites More sharing options...
babadono Posted June 22, 2016 Share Posted June 22, 2016 Of course square waves per se do not fry speakers. Excess energy at high frequencies tend to blow tweeters though. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted June 23, 2016 Share Posted June 23, 2016 Well it is interesting they talk up the crossovers but don't show a picture of them. Quote Link to comment Share on other sites More sharing options...
Fjd Posted June 23, 2016 Share Posted June 23, 2016 (edited) So there is a pair of KHorns and amplifier for sale on AGon, $7K. All new special speaker wiring and capacitors and the included 250wpc Parasound amp. The reason for the "massive overkill" is so the speakers arent fried by having delivered a "square wave" from the amp. Huh! I'll admit to not being the sharpest knife in the drawer but I'm lost. So I guess I'm sure to fry my KHorns by delivering a wimpy 3.5 watts from my 2a3's? I guess I've been going about high effiency speakers all wrong, back to the drawing board. There appears to be a fairly large segment of the audiophile community that describe the impact on the audio signal of driving a solid state amplifier into clipping as a "square wave" and I suspect that the seller is trying to say that the Parasound Halo A-21 500 watt amplifier will not be driven into clipping resulting in blown drivers, especially a clipped signal causing blown tweeters, with the Klipschorns. I've attached the JBL Tech Note regarding the dangers of clipping that can be associated with the use of low power solid state amplifiers. However, when using a 500 watt amplifier with Klipschorns, I would also read the following "Dope from Hope" articles regarding the potential perils of using too much power that can be found at the link below from the Klipsch education page: http://www.klipsch.c.../dope-from-hope Vol. 7, No. 5, June 1966, "Blown Tweeters" Vol. 8, No. 1, July 1967, "Guarantee Void!" Vol. 13, No. 1, January 1973, "Fuses for Loudspeakers" Vol. 13, No. 2, June 1973, "Speaker Destruction" Vol. 14, No. 2, May 1974, "Power Ratings" Vol. 16, No. 1, January 1977, "Amplifier Ratings to Drive Klipsch Systems Regarding your 3.5 watt per channel tube amplifiers, one of the perceived benefits of the tube amplifiers is that vacuum tubes seem to clip more gradually than solid state transistor amplifiers and do not have the same impact on the audio signal when driven into clipping as a solid state amplifier driven into clipping. JBL Tech Note - low power.pdf Edited June 23, 2016 by Fjd 1 Quote Link to comment Share on other sites More sharing options...
chriswhotakesphotos Posted June 23, 2016 Share Posted June 23, 2016 Interesting reads, Fjd! You have to love the personality in those publications. Certainly enough, per Paul's spec, I haven't had any difficulty getting any sound level I can think of out of my 65w amp. (I also didn't blow anything the time I absent-mindedly plugged a preamp into it while it was on, whew) Quote Link to comment Share on other sites More sharing options...
boom3 Posted June 23, 2016 Share Posted June 23, 2016 Back in the day when temporal alignment was the buzz (mid 70s) one of the things attributed to the Dahlquist DQ-10 is that it could reproduce square waves. This was supposed to be some kind of noble goal, kind of like infinite damping in amps and point source radiation at all frequencies. I recall a review (which I don't have at hand) that said that the DQ-10 would produce a fair facsimile of a square wave at a certain frequency and mike position,; the reviewer conceded that he didn't know what this really meant as a performance factor. I have a pair of DQ-10s in my study and I really like them for moderate levels. For true home theater, of course, my Corns are it. Quote Link to comment Share on other sites More sharing options...
Gorm Posted June 23, 2016 Share Posted June 23, 2016 I wish I could live in La La land too. Quote Link to comment Share on other sites More sharing options...
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