DIY Proac Center speaker

purist · 2002-10-13 9:40 pm

hi all,

Does anyone tried to adapt the Proac 2.5 clones design to a center speaker ?
Proac has the CC1 wich i think uses very similar drivers to 2.5

I am realy interested in doing this but i dont know what to do in the crossover area....
What do i need to do to adapt the design in order to use 2 woofers?

Cheers

Filipe

hifi · 2002-10-13 9:54 pm

I distribute scan-speak drive unit in sweden and there is screened versions of both 18w/8535 and d2010/8513 availible but at higher costs. Im not sure though if they are availible to the diy market the 8513s is quite pricey...

in essence i mean stick with the original design just use screened drivers..

/micke

gary_r · 2002-10-14 12:24 am

proac center clone

how about these? not sure if they are correct but i am hoping to build the 2.5 clones then give the cc 2 a try. any comments if it is right or not?

http://audioclone.free.fr/cctwo.html

http://audioclone.free.fr/ccone.html

the cc 2 use the scan speak drivers at least which i thought should match up better with the 2.5 clone?

hope this help.

purist · 2002-10-14 8:32 am

Oh, i am sorry. What i realy ment to say was CC2.
I am not interested in the CC1.

I just confused myself with the numbers :xeye:

This CC2 will be a very good match for my current speakers Response 2s.

Does anyone want to comment on the design just posted here for the cc2 ?
It looks it uses diferent drivers than 2.5 !
http://audioclone.free.fr/cctwo.html

Thank you

WolfgangB · 2002-12-03 10:52 am

Proac Response CC One

hi all,

i have successfully finished my proac response 2.5 clones some weeks ago. i am very happy with them.

now i am searching for information about the proac response cc one center speaker.

i have found a french site with a clone suggenstion. but they are using an other tweeter. but i want clone the original proac response cc one center as close as possible!

does anybody know:

1. which drivers are used? i think the tweeter is the same as used in the proac response 2.5 clones.

2. crossover layout?

3. size and position of port?

kind regards from Vienna, Austria

WolfgangB

Saci · 2002-12-12 5:01 pm

I am looking for CC One too!

Hi Wolfgang,

Please let me know if you found something. I am planning to build CC One too. The speaker on the Audioclone site is definitely the Seas MS Center, not CC One.

Thx,

Saci

Saci · 2002-12-12 5:20 pm

CC One again

I think you are right about the tweeter. It can be seen well on this picture. Tips for the woofer anyone?

Saci

hardox · 2002-12-16 5:31 pm

i found this. its no cc one, but could work

http://audioclone.free.fr/proac2.5center.JPG

LaMa · 2002-12-16 7:24 pm

The woofer seems to be a Vifa with polypropyleen membrame, something like this:
Vifa p13wh-00-08

An externally hosted image should be here but it was not working when we last tested it.

edit: it's too big

hifi · 2002-12-16 7:44 pm

Actually i think those are Seas Drivers ....look that way based on the basket.

/micke

Saci · 2002-12-17 8:18 am

I bet for Seas too. Here is another picture, maybe this will help.

We have the dimensions: 445mm long x 178mm wide x 192mm deep = ~15 litres

We know that the tweeter is Scan-Speak D2010/8513-00 (or looks very similar

).

We know that we have to look for a "five inch magnetically shielded carbon-filled polypropylene unit with phase plug" which has 89dB sensitivity for 1 watt at 1 metre.

Saci

WolfgangB · 2002-12-17 11:14 am

Hi all,

I think I have found den used mis/bass speaker for the Proac CC One Center:

it could be a Seas WP 140 S

I only have German information:

* 8 Ohms
* 89 dB (1W, 1 m)
* Vas = 18 litres
* diameter 14 cm
* magnetically shielded
* filled polopropylene membrane
* to be used for center speakers in bass-reflex enclosures from 6 - 10 litres

The speakers used in the CC One Orignala show a phaseplug. I think that is a special version manufactured by SEas for Proac. I think the phaseplug is not so important.

See enclosed data sheet.

Any comments or suggenstions?

Has anyone an idea for the X-over? I think we can use the tweeter part of the X-over of the Proac 2.5 clone. But with modified resistor for tweeter level adjustment.

But I do not have a lot of experience for the X-over for the bass/mid unit (the Seas WP 140 S).

Has anybody information about the size of the replex port?

Kind regards,

Wolfgang

hifi · 2002-12-17 12:00 pm

D2010/8513-00 I Think The tweeter is S2010/8513-00 This is the screened version. although i dont think it is availible to the general public.

btw, it is three times as expensive

/micke

Saci · 2002-12-17 1:55 pm

I think the plan on the Audioclone site (http://audioclone.free.fr/ccone.html) is almost OK for us. The photo shows a Seas MS Center, but the drawings are more or less a CC1.

What do you think, can we you this crossover for the Scan-Speak tweeter?

Saci

Saci · 2002-12-17 4:43 pm

I am almost sure that Seas WP 140 S = P14RC/TV, which is documented on the Seas website:

http://www.seas.no/standard_line line up.htm

This is a 8 Ohm driver, but using it with the Seas MS Center crossover the result will be a 4 Ohm speaker. How should we build a crossover to have an 8 Ohm speaker?

Saci

Saci · 2002-12-17 5:16 pm

A very good page on the MS Center:

http://www.arkada.com/kit/8220.html

mezzo · 2002-12-22 10:27 pm

Hello with all

For a perfect coherence with proac 2.5, I advise you
same filtering as the 2.5 but with a tweeter XT25 or OWI hiquphon.
The OWI would be excellent without change of filter but I do not know if there exists in armoured version. One cannot thus have the S2010 version it is necessary found another tweeter.

For the CCTWO, it is intended for the proac 3.5 and I find that CCone is not very coherent with the proac 2.5.
best would be to make a proac 2.5 in power station by putting another armoured tweeter which would approach D2010, I can make you a filter with an armoured XT25 because I have this at the house and I can measured

Mezzo

Saci · 2002-12-23 9:53 am

Hi Mezzo,

Is there a shielded version of the XT25 tweeter? On the DST site I found XT25TG30-04 only, which is not shielded.

What should I change on the original (I mean clone of course

) crossover to use with XT25?

I saw the plans of the ProAc 2.5 Center on the Audioclone site. Is that box big enough for the 18S/8535-00 woofer?

Saci

mezzo · 2002-12-23 1:37 pm

The XT25SG version armoured wind at madisound

Limps of the center proac 2.5 of my site and optimized with the vent granted for the 18w8535.
It is quite obvious that the power station will go down less
in the low registers than the column proac 2.5 but the central
enclosure will be declared in small on the digital amplifier dolby
with redirection of the low register in the subwoofer.

I tested the original filter with the XT25 and that goes less although with D2010, it is necessary to re-examine filtering.
I disadvise the filter series which I made because it is adapted more to the proac 2.5 series than I currently use, but if you have the filter of the clone proac 2.5 original, it is necessary to re-examine the filtering acute of the clone, to have a curve identical to D2010 and that it is feasible

Mezzo
Aldo

perka · 2002-12-23 5:04 pm

I have the 2.5 clones and want to build the center. I'm counting on you guys!

Mezzo, could you please be more precise as to which middle range, treble and crossover and box you would like to recommend. Do you have a drawing?

perka

DIY Proac Center speaker

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