http://www.madisound.com/jp-3.html
The company is farely new and not much experiences are published, but for 81 us dollar...
efficiency is really nice with 95 dB 1W/1m
Maybee I just freak out with an all new cabinet...
The company is farely new and not much experiences are published, but for 81 us dollar...
efficiency is really nice with 95 dB 1W/1m
Maybee I just freak out with an all new cabinet...
Variac said:
Not exactly. Fountek is a different manufacturer than Aurum Cantus... (i have a pr of those). Word is (which i can't confirm) that the Fountek isn't quite up to the build quality of the Aurum Cantus.
dave
Or they are made by a huge company to different specs (including cost) for different Chinese resellers. My understanding of the Chinese situation is that there are these large companys that produce lots of stuff to your spec. If you want tighter tolorences, you probably pay more. They can make cheap and looser specs or more expensive with tighter specs (or more rejects)
In shoes for instance, If you are Adidas, you don't even have a factory. You get your latest model priced at various places, and choose the one that does the quality you need at the price you want to pay. If you want a piece of shiny stuff sewn on top, you pay a bit more. You probably can choose better glue for a little bit more....
I remember that Certain HiVi planar tweeters at Parts Express looked identical but some cost quite a bit more. Word there was that the pricier ones were in fact better.
I also remember that Red Rose claimed that they didn't use the run of the mill ribbon tweeters that look identical to the AC models but that they used special versions. As we have heard, some of the changes that RR did to their amps appear to be very minimal- the differences between some of these drivers could be as small as the different faceplates.
In shoes for instance, If you are Adidas, you don't even have a factory. You get your latest model priced at various places, and choose the one that does the quality you need at the price you want to pay. If you want a piece of shiny stuff sewn on top, you pay a bit more. You probably can choose better glue for a little bit more....
I remember that Certain HiVi planar tweeters at Parts Express looked identical but some cost quite a bit more. Word there was that the pricier ones were in fact better.
I also remember that Red Rose claimed that they didn't use the run of the mill ribbon tweeters that look identical to the AC models but that they used special versions. As we have heard, some of the changes that RR did to their amps appear to be very minimal- the differences between some of these drivers could be as small as the different faceplates.
Since I am doing various projects at the same time, it may take a few months to complete. Has anyone experiences with ordering chassis from madisound?
Variac said:
My info came from a distributor who sells both, and buys them from the Chinese. Take it for what it is worth. The tweeter pictured has a passing similarity to the baby Aurum Cantus, but differs in detail (the big one being the heatsink on the top)
dave
Planet10:
Have you allready used those Aurum Cantus' ?
Do you feel that they could be better in my proposed speaker than the Fountek's?
Have you allready used those Aurum Cantus' ?
Do you feel that they could be better in my proposed speaker than the Fountek's?
hi,
for a little Monitor with the Vifa XT-19 (200) Tweeter, look here:
http://www.klingtgut-lsv.de/eigenentwicklungen.htm
the croosover: three order highpass and second order lowpass
I' am using the ringradiator (XT-300) with an Peerless CSX-176T, (second order butterworth crossover at 2000 Hz). I think for this prie (130€ for each box its) hard to find better combinations. I'am really happy
.
regards
Chris
for a little Monitor with the Vifa XT-19 (200) Tweeter, look here:
http://www.klingtgut-lsv.de/eigenentwicklungen.htm
the croosover: three order highpass and second order lowpass
I' am using the ringradiator (XT-300) with an Peerless CSX-176T, (second order butterworth crossover at 2000 Hz). I think for this prie (130€ for each box its) hard to find better combinations. I'am really happy
.regards
Chris
Merijn,
Madisound is an old and very reliable company so can be trusted.
I'm not sure if you are asking about a particular thing or a general question.
The best premade cabinets seem to be from Parts Express. They look really good in the picture at least and are completely finished.
Dave and I are in agreement that the two tweeters could be different. In the past, when I saw two devices that looked identical, I just assumed that they were made by the same company. It was assumed that it was more expensive for the company to change parts than to just make everything the same.
Now, I think that this isn't true- things that look very similar could be of different quality. The Aurum Cantus tweters have been tried by people I know and the yreally like them. The others are an unknown- for about $30/pr I would get a known model. In fact I will be ordering some of the AC tweets within a month !!
Madisound is an old and very reliable company so can be trusted.
I'm not sure if you are asking about a particular thing or a general question.
The best premade cabinets seem to be from Parts Express. They look really good in the picture at least and are completely finished.
Dave and I are in agreement that the two tweeters could be different. In the past, when I saw two devices that looked identical, I just assumed that they were made by the same company. It was assumed that it was more expensive for the company to change parts than to just make everything the same.
Now, I think that this isn't true- things that look very similar could be of different quality. The Aurum Cantus tweters have been tried by people I know and the yreally like them. The others are an unknown- for about $30/pr I would get a known model. In fact I will be ordering some of the AC tweets within a month !!
Merijn said:
No, i'm only schemimg about how to use them so far -- either with my Jordan JX150s or with 8 of my Foster FE103As (4/side).
I have no direct experience with the Founteks, and am only passing on the comments of someone who has seen/used both. I'm sure it is a good tweeter.
The best tweeters i've actually used to date were Decca London Ribbons. I think the ACs will at least give good portion of that -- i have heard them in at least a couple speakers (althou with much more complex XOs than i plan) and they are very good.
dave
thank you all for your fast responce.
At the moment I use Vifa HT-275D/2 (with two Audax HM130G14), and although I like the combo I want the sweet silky but christall like high/mids my quad's used to give me (but a little less laid-back)
I start with the ACs. Cabinet will be like indoubt's, onely with a classic meranti finish. Woofer to be selected in time...
Variac, what are you actually planning with them?
At the moment I use Vifa HT-275D/2 (with two Audax HM130G14), and although I like the combo I want the sweet silky but christall like high/mids my quad's used to give me (but a little less laid-back)
I start with the ACs. Cabinet will be like indoubt's, onely with a classic meranti finish. Woofer to be selected in time...
Variac, what are you actually planning with them?
Merijn,
I'm using them in my Basszilla as listed in my tagline.
The original Basszilla had a choice of an older Fostex 208 driver or a Lowther driver. These are called "fullrange drivers" but really need a bit of help at the frequency extremes. Both drivers had whizzer cones. They are helped out by a 15" bass driver in the Basszilla instead of using some horn scheme
I built mine using the newest Fostex 208 that doesn't have a whizzer cone. I don't like those whizzer cones for some rational and some irrational reasons. This driver rolls of around 10k so I think it needs some help with a super tweeter. I am now using the Fostex FT 17 tweeter which is quite good, crossed with a single cap. So my version is really a three way with a very widerange mid driver!
Anyway I got Dick Olsher , the Bzila designer fired up to update his design with my 208, and a tweeter, and about that time also mentioned that the AC ribbon might be even a better choice.
As you can see on his website. He has incorporated it into a "diamond edition" using the Lowther:
http://store.hifiauthority.com/olsherkits.html
He promises to do the Fostex update next...
Why do I think that the AC ribbon is a perfect choice for "full range" drivers? Well, the small AC is $100 which is a LOT less than the other models. Usually you can't use a first order crossover (one cap) with a ribbon because it tries to reproduce too low frequencies and destructs. BUT I will be crossing it over pretty high; around 10k so even a 6dB slope is pretty rolled off around the point where it might be damaged. Also with low order crossovers, the two drivers run in parallel for a long ways, so the tweeter has influence until a lot lower than it's crossover point . For this reason a quality tweeter is important. Also it's efficiency is about exactly that of the Fostex (96db) so little, if any padding will be required. These padding resisters have been claimed by some to take life from a tweeter.
Finally, the fullrange drivers tend to have a lively "fast" sound and I think a ribbon tweeter will blend well with this.
I suspect that Dave saw these same advantages when he decided to get his because he is also a widerange driver fan.
I'm using them in my Basszilla as listed in my tagline.
The original Basszilla had a choice of an older Fostex 208 driver or a Lowther driver. These are called "fullrange drivers" but really need a bit of help at the frequency extremes. Both drivers had whizzer cones. They are helped out by a 15" bass driver in the Basszilla instead of using some horn scheme
I built mine using the newest Fostex 208 that doesn't have a whizzer cone. I don't like those whizzer cones for some rational and some irrational reasons. This driver rolls of around 10k so I think it needs some help with a super tweeter. I am now using the Fostex FT 17 tweeter which is quite good, crossed with a single cap. So my version is really a three way with a very widerange mid driver!
Anyway I got Dick Olsher , the Bzila designer fired up to update his design with my 208, and a tweeter, and about that time also mentioned that the AC ribbon might be even a better choice.
As you can see on his website. He has incorporated it into a "diamond edition" using the Lowther:
http://store.hifiauthority.com/olsherkits.html
He promises to do the Fostex update next...
Why do I think that the AC ribbon is a perfect choice for "full range" drivers? Well, the small AC is $100 which is a LOT less than the other models. Usually you can't use a first order crossover (one cap) with a ribbon because it tries to reproduce too low frequencies and destructs. BUT I will be crossing it over pretty high; around 10k so even a 6dB slope is pretty rolled off around the point where it might be damaged. Also with low order crossovers, the two drivers run in parallel for a long ways, so the tweeter has influence until a lot lower than it's crossover point . For this reason a quality tweeter is important. Also it's efficiency is about exactly that of the Fostex (96db) so little, if any padding will be required. These padding resisters have been claimed by some to take life from a tweeter.
Finally, the fullrange drivers tend to have a lively "fast" sound and I think a ribbon tweeter will blend well with this.
I suspect that Dave saw these same advantages when he decided to get his because he is also a widerange driver fan.
Variac said:
What i call a mostly full-range system
Yes... i've been wanting a set of ribbons for super-tweeter duty for awhile and these were offered at a price that made resistance futile. I'll probably be using them active, with a 2nd order active XO (subtractive) and a blocking cap a couple octaves lower down. I suspect the XO will be 6-7k (i want to get it as high as i can)
1st sketches below... i'll rear mount the drivers on an aluminum baffle plate -- actually probably an assembly with the 2 FE103As on the back, and all the FRs tightly coupled,
dave
Attachments
Variac: those are looking quite serious and non-standard (doesn't look like anything I have seen in DIY-shops so far...)
But this Fostex FE208 is a great chassis...
But this Fostex FE208 is a great chassis...
Since I am getting pretty tired of doing these calculations by hand, what are easy to use simulation programmes (freeware)?
Simulations
Hi Merijn,
I didn't follow this thread, but did you mean loudspeaker simulation or crossover simulation. If you mean loudspeaker simulation try: www.linearteam.dk
Regards,
Jarno.
Hi Merijn,
I didn't follow this thread, but did you mean loudspeaker simulation or crossover simulation. If you mean loudspeaker simulation try: www.linearteam.dk
Regards,
Jarno.
planet10 said:
wow. now we are getting somewhere. as u know i have been following most full range driver posts with ernest.
my 3 reasons "to go fullrange"
1. WAF
2. get 1 driver to cover 200-5k
3. a compact speaker that can be used for all 5-7 channles of HT/AV (BTW how big will the box need to be).
this solution might solve dispersion and baffle step. only i wonder what about imaging with the 3 drivers not in a vertical line.
planet10 said:
1. the fe103 is closer to the jx92 right?
2. can you still find the decca ribbons? i ha dused them on as mods on a pair of DQ10s in 1980 (i think) and would love to hear them again esp with the fostex 103.
3. which is more expensive the fountex or the AC? I could not find a price on the AC.
Price of the Fountek will be around 80 US Dollar and the AC about a 100/ piece. You'll have to google for the cheapest reseller... 😉
thanks. any idea of teh price points for the fostex 103 and jx92. i hear te 103 sells for about $30.
navin said:
In size than the JX150
Used. And you pay collector prices. Howard Dawson still sells a ribbon (doesn't go as low) he makes using the original tooling.
navin said:
About $35 & $100
dave
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