Click title to read one, or click date to read all below it.
06-26-11
Apogee stages were notoriously inefficient, but, for what th ... Rgs92
06-26-11
Weseixas, i think you might want to recalculate that. Unsound
06-26-11
Through the years i have found that going down in amplifier ... Dmailer
06-26-11
Charles1dad "but,to each his own" triode , words o ... Grannyring
06-26-11
Hi 06-26-11: charles1dad, err no ... regards, Weseixas
06-26-11
Hello unsound, @ 15 feet the 100db/w/m horn would have an o ... Weseixas
06-26-11
Ok as i had mentioned manytimes before we need to give an re ... Weseixas
06-26-11
Grannyring, we`re in agreement, i`m just expressing my pers ... Charles1dad
06-26-11
Hello charles1dad, to achive 94 db@5m the set.horn combin ... Weseixas
06-26-11
Agreed charles1dad. your system is awesome and i have always ... Grannyring
06-26-11
Would any builders of horns care to comment? i don`t believe ... Charles1dad
06-26-11
Ahhh charles1dad, a cylindrical horn does, it is the same ... Weseixas
06-26-11
Also in a system where the bass driver is loaded directly t ... Weseixas
06-26-11
Hence the 3 db drop of per doubling would only apply to the ... Weseixas
06-26-11
Gentlemen, i believe that the losses that are being referred ... Almarg
06-26-11
Hello al, per meter = doubling of measured reference distan ... Weseixas
06-26-11
One question for you charles1dad, how would you describe th ... Grannyring
06-26-11
Comparing a planar to a horn is like comparing a slingshot t ... Macrojack
06-26-11
Anything scientific to add macrojack?....thought so, this is ... Weseixas
06-26-11
Note: op had used the word efficiency, but it was obvious h ... Weseixas
06-26-11
Grannying, thanks for the kind comments, i have equal admira ... Charles1dad
06-26-11
so therefore in your example, when you said ... 06-26-11: ... Almarg
06-26-11
Hello al, no your calculations are off the distance increas ... Weseixas
06-26-11
if 6db is lost going from 1 meter to 2 meters (and i have no ... Almarg
06-26-11
Al, yes 15 db down not 24 , my apologies guys ..... Weseixas
06-26-11
after the correction the linesouce in the eg would not give ... Weseixas
06-27-11
Lots of wrong info enjoy it. Johnk
06-27-11
Johnk, i would love to hear your informed opinion. i`m no ... Charles1dad
06-27-11
I have found that using efficient speakers, besides the wide ... Mrdecibel
06-27-11
Grannyring have you settled in with the m1's and are you gla ... Rleff
06-27-11
Rleff, i love mine and they will stay for a long time. it wa ... Grannyring
06-27-11
Gannyring-running the m2's with audiovalve challanger 180 mo ... Rleff
06-28-11
Been looking at drivers lately. let's say we want 30-40 hz ... Ngjockey
06-28-11: Atmasphere
Are you saying that an amplifier will have to have fixed current to sound good on horns ... ?
Weseixas, No. A constant power characteristic seems to be adequate, although Nelson Pass has shown that constant current amps work well for this as well. Your comment about transformers seems to be a red herring; if you are talking about an output transformer, they occur in amps that are constant voltage, constant power and constant current. IOW an output transformer has no bearing in this discussion.
Unsound is correct in his surmise that I was referring to peak levels. Those who say that hearing damage is an issue at volumes like this are correct, however those same people should keep in mind that a real orchestra can reach these peaks with similar consequence. However an orchestra will sound real doing it, and most audio systems that are capable of that sound pressure don't, usually because of artifacts generated by the amplification. I was simply pointing out that a horn system would allow peaks like that to happen without said artifact, if you use the right amp. Unsound and I part ways in the matter of horns that can sound like real music: I have heard some that he has not and so have this opinion.
Weseixas mentioned something about a planar magnetic and a very high powered amp doing the same sound pressure. Its true that it can, but you would not want to be in the same room due to the artifacts I alluded to earlier. Now if a magnetic planar had the same sort of efficiencies they might be worth a try. IOW this points directly to the issue of why efficiency is so important! In a nutshell, the only amps that are capable of sounding like real music don't make anywhere near 2000 watts- you need the efficiency.
Atmasphere (Threads | Answers | This Thread)
06-28-11
Hi ngjockey, my experience with pro parts is not what yo ... Timlub
06-28-11
Atmasphere, are you referring to some horn speakers you've h ... Unsound
06-28-11
Timlub, the 84 to 90 db drivers would not be pro drivers. ... Ngjockey
06-29-11
Unsound, i don't know. i can tell you this- one of them got ... Atmasphere
06-29-11
Well, what are they then? Unsound
06-29-11
This is an assanine thread. Acurus
06-29-11
Atmasphere, i think in the minority paradigm that your prod ... Mapman
06-29-11
In a real world scenario, the ops question is impossible to ... Timlub
06-29-11
Too much complicated answer required for this question. it n ... Elviukai
07-01-11
Mapman, the simple fact is that any speaker that has high ef ... Atmasphere
07-02-11
Atmsphere, of course that is only your opinion, many if not ... Unsound
07-02-11
I believe it was earl geddes who said, "science is not ... Macrojack
07-02-11
You guys are missing some key points. all speaker designers ... Russ69
07-02-11
Prove it. Unsound
07-02-11
You know guys, it seems to me that the op really just wante ... Timlub
07-03-11
Efficiency in of itself is a good thing. but alone, efficie ... Mapman
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