I need the Xover design of Proac response 3.8.
The unit is Scan speak 9900 + pair of 8545.
I got one, but it's a little weird.
So I want the check it's original or tweak.
And I think a thread which contains many Xover design is needed.
Thanks..
The unit is Scan speak 9900 + pair of 8545.
I got one, but it's a little weird.
So I want the check it's original or tweak.
And I think a thread which contains many Xover design is needed.
Thanks..
dont know about 3.8 but i can give you design of my MTM using 8546 instead of 8545.
some day i will make this a MT 2.5 way 🙂
some day i will make this a MT 2.5 way 🙂
"I need the Xover design of Proac response 3.8."
Don't we all...I have the drivers too.
Make sure you drop me a gif when you find it.
Don't we all...I have the drivers too.
Make sure you drop me a gif when you find it.
The design I have..
What do you think? The 47 ohm at the tweeter might be wrong..
An externally hosted image should be here but it was not working when we last tested it.
What do you think? The 47 ohm at the tweeter might be wrong..
it looks the same as this one
looks the same as this one...
http://audioclone.free.fr/proac 3.8.html
been thinking about trying this or the 2.5 after the new year. once winter set in.
can i ask where you got your page info? looks very close to the one i am posting here, but the art work is different. would like to see what else they may have to show.
have been looking for more info on the 3.8 but there doesn't seem to be much out there.
gary
looks the same as this one...
http://audioclone.free.fr/proac 3.8.html
been thinking about trying this or the 2.5 after the new year. once winter set in.
can i ask where you got your page info? looks very close to the one i am posting here, but the art work is different. would like to see what else they may have to show.
have been looking for more info on the 3.8 but there doesn't seem to be much out there.
gary
Seems to be the design for scan-speak reference plus.
If so you could have a look at this;
For more information go to this address.
http://www.audiocomponents.nl/speakers/scanspeak/scan-speak_eng.htm
You find the reference plus and all nessesary drawings down to the right.
regards, TEK
If so you could have a look at this;
An externally hosted image should be here but it was not working when we last tested it.
For more information go to this address.
http://www.audiocomponents.nl/speakers/scanspeak/scan-speak_eng.htm
You find the reference plus and all nessesary drawings down to the right.
regards, TEK
TEK said:
One thing to mention is that audiocomponents is using Intertechnik parts in his crossover, so Tritec, Torobar, KPSn are components of Intertechnik, you can find them on http://www.intertechnik.de
Re: Resistor
If you are talking about L-pad resistor values, I think 47-ohm series with 22-ohm shunt should work.
If you mentioned that parallel resonant trap part, I have no specific reference. Usually a small ohmic value is used for very steep notch and greater value for smaller peak correction. I am not sure if you need that notch filter there at all?
BUT even if this crossover is not so weird perhaps, it’s an expensive one if you want to build this with polyprop capacitors and air-core inductors.
Argo
Richard Moon said:
If you are talking about L-pad resistor values, I think 47-ohm series with 22-ohm shunt should work.
If you mentioned that parallel resonant trap part, I have no specific reference. Usually a small ohmic value is used for very steep notch and greater value for smaller peak correction. I am not sure if you need that notch filter there at all?
BUT even if this crossover is not so weird perhaps, it’s an expensive one if you want to build this with polyprop capacitors and air-core inductors.
Argo
Damn it...
Now you got me started...
I just finished a pair of 2.5 clones and was planning to build another pair to have as rear speakers in my home cinema... Now I got that "drug addict" feeling that I should start another project...
//magnus
Now you got me started...
I just finished a pair of 2.5 clones and was planning to build another pair to have as rear speakers in my home cinema... Now I got that "drug addict" feeling that I should start another project...
//magnus
Center - ProAc Response CC2
The ProAc Response CC2 is a good candidate, but ofcource I want to build it myself.
http://www.home-entertainment.co.uk/grouptest_read.asp?GroupID=1685&ArticleID=1684
Found a review in Stereophile on the 3.8.
http://www.stereophile.com/showarchives.cgi?297:0
Drawings? Anyone?
//magnus
The ProAc Response CC2 is a good candidate, but ofcource I want to build it myself.
http://www.home-entertainment.co.uk/grouptest_read.asp?GroupID=1685&ArticleID=1684
Found a review in Stereophile on the 3.8.
http://www.stereophile.com/showarchives.cgi?297:0
Drawings? Anyone?
//magnus
By the way, the measurements are not even close to the 3.8's.
According to StereoPhile:
And, the 3.8 has two reflex ports.
Hmmm... Have to search some more for the 3.8 clone then. This might not even be close...
//magnus
According to StereoPhile:
And, the 3.8 has two reflex ports.
Hmmm... Have to search some more for the 3.8 clone then. This might not even be close...
//magnus
the cc2 clone
swede the site i posted above also has a lay out for the ccone and the cctwo. here is a link to the cctwo...
http://audioclone.free.fr/cctwo.html
they also have what they call a 2.5 center. they link is as follows...
http://audioclone.free.fr/proac2.5center.JPG
AGAIN I ASK RICHARD MOON WHERE DID YOU FIND THAT 3.8 COPY??? PLEASE. PRETTY PLEASE DO TELL US.
thanks,
gary
swede the site i posted above also has a lay out for the ccone and the cctwo. here is a link to the cctwo...
http://audioclone.free.fr/cctwo.html
they also have what they call a 2.5 center. they link is as follows...
http://audioclone.free.fr/proac2.5center.JPG
AGAIN I ASK RICHARD MOON WHERE DID YOU FIND THAT 3.8 COPY??? PLEASE. PRETTY PLEASE DO TELL US.
thanks,
gary
3.8 copy
Does it really matter where he found it? If you look at the picture previously posted in this thread, you will see that it is not even close to the "real" 3.8, which is about 200 mm taller and 10 mm wider (just 3 mm deeper, though).
I wouldn't call it a ProAc 3.8 clone.
Thanks for the links!
//magnus
Does it really matter where he found it? If you look at the picture previously posted in this thread, you will see that it is not even close to the "real" 3.8, which is about 200 mm taller and 10 mm wider (just 3 mm deeper, though).
I wouldn't call it a ProAc 3.8 clone.
Thanks for the links!
//magnus
Hi, can anyone explain why they have another diagram of the speaker on this site which uses a different crossover and drivers?
Is this an alternative clone for the same speaker?
http://audioclone.free.fr/PROAC 2.5 SERIE.gif
Luke said:
Hi Luke
As far as I can se, the filter drawing that you link to, is an alternative seriel filter, as the original Proac is parallel. The two filter technologies differs in many ways - also sonical i'm told. The drivers are the same as in the original 2.5. If you want to read more on seriel filters, thy 'googling' the web - I remember a guy named Tony Gee having a part on seriel crossovers on his website.
By the way - anybody have any news on the reverse engineering of the 3.8 ???
Cheers !
Hans Buhl Houmøller
With all due respect to the Audioclone website this is not an exact copy of the Proac 3.8, there are a number of differences:
Original uses Seas tweeter (maybe T25CF001/2?) not Scanspeak 9900.
Midrange driver is most likely the 18w/8545
However, the bass unit has to be the 18w/8535, same used in the 2.5 model. The 8545 does'nt have as good bass extension as a simple 8535 (45 designed for smaller enclosure volume). Proac seems to use the 8535 in all their new 3 way bass designs like Futures & Response 3.8, 5.
Original uses Seas tweeter (maybe T25CF001/2?) not Scanspeak 9900.
Midrange driver is most likely the 18w/8545
However, the bass unit has to be the 18w/8535, same used in the 2.5 model. The 8545 does'nt have as good bass extension as a simple 8535 (45 designed for smaller enclosure volume). Proac seems to use the 8535 in all their new 3 way bass designs like Futures & Response 3.8, 5.
Why not trying this one?
http://64.37.116.230/images/renaissance/renaissance.htm
It seems to be a fine project made by a paul Hilgeman from parts express tech talk forum. I am working on the Xover to use a 9900 instead of the 9700.
cyclo
http://64.37.116.230/images/renaissance/renaissance.htm
It seems to be a fine project made by a paul Hilgeman from parts express tech talk forum. I am working on the Xover to use a 9900 instead of the 9700.
cyclo