Re: Volt in sealed box
Seems that small Raal goes better with a 10" and bigger brother with a 10" or 12"(?).
Those numbers made me crazy. I had to write everything down and print, and make 3 different lists, and I could not figure out after all.
My problem, I know tpl is the best right now (I know this after I showed specs to an american engineer a few years ago - well kept secret - and I don't know any good driver that is not also good on paper to start with and not the opposite), was that the price for the Raals (is cheapper) for the DIY guys right here and group buys. Also the SA driver (is it double the Beyma price?) is a pro driver that I don't have enough information (documentation). The Beyma guys are in the market for years (diy, kits, hi-fi and PA), and after main companies in the US went bankrupted these guys (in Spain) and their manager, that is not chinese NPI, just took it from there. You see a lot of guys in Spain buying from Audio Technology but not for the pro (PA) market but more for the Sonus Faber's alikes.
Audiodidakt said:Hmm...
Thanks for replies guys!
For the 10" and 12"; how is the horizontal disperision say up to 2800 Hz?
(I havent decided yet which Raal I would go for, the 70-10 will have to crossed over at 2800Hz while the bigger brother can manage a crossover around 15-1600 Hz)
Seems that small Raal goes better with a 10" and bigger brother with a 10" or 12"(?).
Overkill Audio said:
Those numbers made me crazy. I had to write everything down and print, and make 3 different lists, and I could not figure out after all.
Overkill Audio said:
My problem, I know tpl is the best right now (I know this after I showed specs to an american engineer a few years ago - well kept secret - and I don't know any good driver that is not also good on paper to start with and not the opposite), was that the price for the Raals (is cheapper) for the DIY guys right here and group buys. Also the SA driver (is it double the Beyma price?) is a pro driver that I don't have enough information (documentation). The Beyma guys are in the market for years (diy, kits, hi-fi and PA), and after main companies in the US went bankrupted these guys (in Spain) and their manager, that is not chinese NPI, just took it from there. You see a lot of guys in Spain buying from Audio Technology but not for the pro (PA) market but more for the Sonus Faber's alikes.
If looking at ribbons, has anyone looked at any of them from Transmission Audio yet?
http://www.transmissionaudio.com/
John
http://www.transmissionaudio.com/
John
badman said:
Hi,
I ever thought I knew my 2226ers. The distortion figures are very close to the vendors data sheet. At least with mine. The 2206 were to. I tested 4 pcs of 2206H and 8 pcs of 2226H. Maybe I was very lucky if the good data up to 1kHz occured by incidence.
All 22x6ers seem to show some more HD @ around 300Hz to 500Hz. But above that - as in the data sheet - HD is going lower than with any other driver I know at that levels of around 110dB.
18sound compares a little better with lower levels at about 90dB. You should consider what level You will need in a living room. HD will never be perceptable with a decent PA driver, cause human hearing has its limitations. The higher the level the more masking of harmonics.
fini
www.sonido.hu
They have excellent paper 12 incher with strong motor and very light moving mass for reasonable money, but for parameters and price should e-mail them. Its not on their web yet.
It was designed to fit fast widerangers, so its "quick" enough.
They have excellent paper 12 incher with strong motor and very light moving mass for reasonable money, but for parameters and price should e-mail them. Its not on their web yet.
It was designed to fit fast widerangers, so its "quick" enough.
Charcoal said:
Don't get too hung up on mass as this is not the issue at all. Take a driver and measure the impulse response. Now add mass to the cone to double Mms and measure the impulse again. This will change only the magnitude of the impulse, but not the rise or fall time. Someone had measurements of this recently on here but I can't seem to find them now. The true acceleration factor is based much more on inductance and fixing the flux in the gap than mass.
John
Of caurse motor is in priority about all of this. But I suppose it is also should be considered in relation with mms. IMHO.
Measurements is an instrument to please finally our ears)) In case if I do yoour test and just listen - heavier MMS with the same motor sounds worth for me. If we speake about upper bass - mid range - I subjectivly like more the sound of those one with lower MMs (with equal motors).
(infra bass is an acception of caurse, we talk about low-mid).
Measurements is an instrument to please finally our ears)) In case if I do yoour test and just listen - heavier MMS with the same motor sounds worth for me. If we speake about upper bass - mid range - I subjectivly like more the sound of those one with lower MMs (with equal motors).
(infra bass is an acception of caurse, we talk about low-mid).
Gisle, you should come visit me and listen to my TPL150 + 12P1000nd speaker, its quite amazing actually... crossed over at 1200 Hz. A friend of mine said "It sure does fly, but in theory it should not!"
The 12P1000nd does not behave well above 300 Hz, but not worse (not at all) than many highly praised fullrange drivers.....
The 12P1000nd does not behave well above 300 Hz, but not worse (not at all) than many highly praised fullrange drivers.....
That would be more than perfect Stig! I have looked at both your TPL-sets with eager, and also follow your OB-thread.
Do you live somewhere near Kapp? (I'm now situated in Sandnes, but stayed a year at Kapp and might visit the place first week-end in June(, and Oslo last weekend in May))
I don't know whether you are still visiting hifisentralen.no, but there have been a discusion there regarding the TPL and need for a backwardfacing tweeter for ambience. (Asbjos long project-thread). Do you have a view on that issue - I am not "close listener" like you; I sit 3-4 meters from the speakers.
Gisle
Do you live somewhere near Kapp? (I'm now situated in Sandnes, but stayed a year at Kapp and might visit the place first week-end in June(, and Oslo last weekend in May))
I don't know whether you are still visiting hifisentralen.no, but there have been a discusion there regarding the TPL and need for a backwardfacing tweeter for ambience. (Asbjos long project-thread). Do you have a view on that issue - I am not "close listener" like you; I sit 3-4 meters from the speakers.
Gisle
Will send you a mail regarding visits.
Interesting that the TPL is gaining a lot of attention, also on typical hifi forums. I dont waste my time on those forums though, too much BS and almost nobody there with any sense of scientific approach to audio.
Rear "ambience" tweeters... haha. I've heard them a lot of times, and find that they only mess things up. I've never heard them improving anything at all, just making the treble sound harsh and messing up the stereo image. Dipole radiation however, is a completely different thing than using rear tweeter!
Interesting that the TPL is gaining a lot of attention, also on typical hifi forums. I dont waste my time on those forums though, too much BS and almost nobody there with any sense of scientific approach to audio.
Rear "ambience" tweeters... haha. I've heard them a lot of times, and find that they only mess things up. I've never heard them improving anything at all, just making the treble sound harsh and messing up the stereo image. Dipole radiation however, is a completely different thing than using rear tweeter!
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