The Peerless KO10 was ubiquitous back in the late 70s and 80s. It was truly everywhere!
this Audax type tweeter is produced automatically in millions and is therefore one of the most used of all times.
Has a fine upper end, works with only 6db crossovers.
its a mix of cone and dome
Has a fine upper end, works with only 6db crossovers.
its a mix of cone and dome
I sold literally 1000s of those when I worked at Speaker City in the 80d.
I remember buying a 500 pc carton full of those Audax TW010 for an OEM design. There wasn't a single bad tweeter in that lot. They were extremely consistent too. We just put a 3.3 uF cap + 2R2 resistor on them and run a 5" ITT bass mid through a 0.4 mH coil. This made a great little bookshelf for very little money and put some much more expensive little 2 ways to shame.
Yep, and as I said in an earlier post, if you (still today) take this tweeter seriously in our modern age of modeling & DSP and match it with a good crossover and appropriate midrange driver and all the rest, it sounds fantastic. It's one of the most elegant designs in the history of audio.
The TW010 is essentially a small cone tweeter, similar to the JBL LE25/26. The VC on the Audax was wound without using a physical former, so it was self- supporting to save weight, a rather elegant but very simple design. So much so, it was copied by everyone and often very poorly.
The problem with the first dome cones was that, as they did not have an additional suspension (the classic spider of conventional cone tweeters, like my JBL LE-20 - which by the way, measures poorly, but sounds good -, later surpassed with the LE-25) all the piston movement (which should not have lateral movements) depended exclusively on the material used in the dome and its union with the VC.
Audax was one, if not the first to overcome that, copied by Seas in the T35 (don't ask me how they
Audax was one, if not the first to overcome that, copied by Seas in the T35 (don't ask me how they
How much does THAT suck? I go to fetch a picture off of the internet and come back and lose six pages of text! Lol. Ach well...
I'm a big fan of natural substances like Silk and paper which I believe have properties that will never be superseded as they millions of years to properly synthesize in nature.
Consequently I like the classic peerless silk soft Dome tweeters. And I am especially a fan of some of the Allen Organ HiFi speakers in the 70s for making it perfectly clear what really matters in getting a perfect visualization of the sounds of the natural world, realized as closely as possible.
Say what you want they simply didn't skimp when it came to reproducing organ sounds and a number of their little offerings were quite huge!
And a lot of them had a nearly flat line of response down to 30 Hertz! And back in the '70s they weren't trying to reproduce organ sounds so much as make speakers that would reproduce any sound because their systems became a more virtualized adaptation of a pipe organ. Consequently you'll find some of these interesting speakers with jbl's in them that now are worth more than the entire organ system. And nearly all of these things had peerless mid-range and soft Dome silk tweets.
I went one further a while back and started experimenting with silk surrounds for some of the smaller studio monitors and drivers that I have that had foam surrounds originally.
One of the more startling and interesting experiments was with my little JBL 4408 studio monitors that I carefully replaced with some custom cut silk surrounds. I just used some raw silk cloth and cut it to fit with the Final Cut being made with the speaker excerpted inward to its likely furthest point.
I made sure that the coil was centered so it wouldn't be rubbing and then applied speaker dope to the surround.
You might think that the silk wouldn't provide enough support for the cone but to the contrary it did extremely well and made it so compliant that it effectively reproduced the whole bass Spectrum, down to at least 30hz... So much so, that I had some other sound techs drop by, and hearing them, literally began looking for some subs or speakers that may be hidden, because it seemed to defy physics!
I don't know if it helped the whole equation of being a flat response speaker necessarily, but I'll say emphatically they sound really amazing! Sometimes the silk surrounds don't look as tidy as the factory made foam but I swear they are 100 times better and will not wear out and if anything will become more compliant over time!
I'm a big fan of natural substances like Silk and paper which I believe have properties that will never be superseded as they millions of years to properly synthesize in nature.
Consequently I like the classic peerless silk soft Dome tweeters. And I am especially a fan of some of the Allen Organ HiFi speakers in the 70s for making it perfectly clear what really matters in getting a perfect visualization of the sounds of the natural world, realized as closely as possible.
Say what you want they simply didn't skimp when it came to reproducing organ sounds and a number of their little offerings were quite huge!
And a lot of them had a nearly flat line of response down to 30 Hertz! And back in the '70s they weren't trying to reproduce organ sounds so much as make speakers that would reproduce any sound because their systems became a more virtualized adaptation of a pipe organ. Consequently you'll find some of these interesting speakers with jbl's in them that now are worth more than the entire organ system. And nearly all of these things had peerless mid-range and soft Dome silk tweets.
I went one further a while back and started experimenting with silk surrounds for some of the smaller studio monitors and drivers that I have that had foam surrounds originally.
One of the more startling and interesting experiments was with my little JBL 4408 studio monitors that I carefully replaced with some custom cut silk surrounds. I just used some raw silk cloth and cut it to fit with the Final Cut being made with the speaker excerpted inward to its likely furthest point.
I made sure that the coil was centered so it wouldn't be rubbing and then applied speaker dope to the surround.
You might think that the silk wouldn't provide enough support for the cone but to the contrary it did extremely well and made it so compliant that it effectively reproduced the whole bass Spectrum, down to at least 30hz... So much so, that I had some other sound techs drop by, and hearing them, literally began looking for some subs or speakers that may be hidden, because it seemed to defy physics!
I don't know if it helped the whole equation of being a flat response speaker necessarily, but I'll say emphatically they sound really amazing! Sometimes the silk surrounds don't look as tidy as the factory made foam but I swear they are 100 times better and will not wear out and if anything will become more compliant over time!
Attachments
We had a Speaker City here in Vancouver as well. I was a happy attendee once I got my driver's license.
OT posts removed.
seanfir, how about get back on topic here. Tweeters that were hugely popular.
seanfir, how about get back on topic here. Tweeters that were hugely popular.
Nobody has mentioned the Celestion HF1300 from the 60s; there were still lots of them at the BBC in the 80s. Used in the Spendor BC1 (and others).
A standout from the BBC inspired speakers coming across from the UK. Sold a single pair special order ($600 CAD / 1976). He still has them. It seems there was an early “BC1” without.
These are the ones i heard — with the Coles 4001G. A few HF1300 were ued as a tweeter but lack much above 13k so most had either a Coles or a Celestion HF2000 super tweeter.
Others were the IMF TLS80, a number of Celestion Dittons … and since they were available for diy many quite a few of those, notably the Pro9TL (Mk1), the Atkiinson,
dave