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View Full Version : What to do with 2435 and 2202H ?



Guru
07-08-2008, 05:06 AM
Hi !


This is my first post here on Lansing H so i hope i'll do it right...

I bought a pair of 2435 and 2202H for a small amount of money and now i hope you guys can help me to decide what to do with them...

Is this a good idea ?
2435 in a smith horn >950Hz
2202 80-950
??? 20-80Hz

/G

John W
07-08-2008, 08:38 AM
Hi,
Welcome to the forum.
My main speakers use 2245 woofers below 290, 2202H from 290 to 900, 2435HPL from 900 to about 15k and 2407H above that.
The speakers are driven using a 6 channel active crossover, which is a good way to go for DIY.

I can definetly recommend the setup. The 2245 is excellent.
You can read a little more on the horn here:
http://audioheritage.org/vbulletin/showpost.php?p=140628&postcount=40

A smith horn could also work, but with the 2435 I like this better. These horns image real well.

Earl K
07-08-2008, 10:17 AM
Cool !

Very Nice setup John !

A round horn ( just like yours ) would also be my first choice ( assuming one likes some front to back imaging / as well as side to side ) .


<> :)

Guru
07-09-2008, 01:22 AM
Earl K: Do you have the spec for 2435's ?

18" is a little to big for me, what do you guys think about using a 2203 below 80Hz ?

Earl K
07-09-2008, 05:11 AM
Hi Guru


Earl K: Do you have the spec for 2435's ?

The specs are posted on this site ( look in the Transducer section at the bottom ) . (http://audioheritage.csdco.com/vbulletin/forumdisplay.php?f=59)

<> :)

ps ; the 2203 can be made to work as long as you use an electronic crossover to make up for it's lower sensitivety .

Guru
07-09-2008, 10:20 PM
Hi Guru



The specs are posted on this site ( look in the Transducer section at the bottom ) . (http://audioheritage.csdco.com/vbulletin/forumdisplay.php?f=59)

<> :)

ps ; the 2203 can be made to work as long as you use an electronic crossover to make up for it's lower sensitivety .

Thanks for the spec :)

My ideas right now are...

1pcs 2435 >950Hz
2pcs 2202H 120-950Hz ( 2 pcs to get the higher sensivity) Maybe there should be an higher xover point ?
1pcs 2203H 30-120Hz with an electronic crossover

Mr. Widget
07-09-2008, 10:52 PM
2pcs 2202H 120-950Hz ( 2 pcs to get the higher sensivity)I think you would be better off padding the 2435 down an additional 3dB rather than adding a second midbass driver.



Maybe there should be an higher xover point ?
Very likely.


Widget

Guru
07-09-2008, 11:32 PM
I think you would be better off padding the 2435 down an additional 3dB rather than adding a second midbass driver.

Very likely.


Widget

Misstake by me....2203 should be 2 :o:


1pcs 2435 >950Hz
1pcs 2202H 290-950Hz
2pcs 2203H 30-290Hz with an electronic crossover ( 2 pcs to get the higher sensivity)

Guru
07-09-2008, 11:36 PM
Looks like 2203H is hard to find here in Sweden :( Any other suggestion of driver ?

matsj
07-10-2008, 09:09 AM
There is 2 2231A for sale in Denmark on Hifi4all.

mats

Guru
07-10-2008, 10:23 AM
There is 2 2231A for sale in Denmark on Hifi4all.

mats


I was waitning for you to show up :D

Thanks for the tip !

Robh3606
07-10-2008, 05:38 PM
Make a nice 3 way out of them.

Rob:)

yggdrasil
07-10-2008, 06:30 PM
If you have enough space the 2202 looks very good as a horn driver....

That would leave you with a 2-way.

Guru
07-11-2008, 06:29 AM
John W:

How big is that cabinet for the 2245 ? ?

Guru
07-11-2008, 06:29 AM
If you have enough space the 2202 looks very good as a horn driver....

That would leave you with a 2-way.

Maybe an Edgar Horn should do it or do you have a suggestion ?

pos
07-11-2008, 08:08 AM
John W:

How big is that cabinet for the 2245 ? ?

EDIT: oups, I didn't read the question properly: it was related to John W's clone directly. Sorry.

two times that of a 2231/2235

but you can also go smaller:
- 140L will be enough for a sealed box
- 220L will be good for a sealed box, and also acceptable for a ported one (with the option to tune it lower and add some EQ or resonant high pass on the tuned frequency, as with the B460)
- 250L will be good for a ported box (4345)
- 290L will be even better according to Greg Timbers himself (I don't thnik he mentioned an exact volume, but he stated that the 250L of the 4345 were not quite big enough)

John W
07-11-2008, 08:18 AM
John W:

How big is that cabinet for the 2245 ? ?

The outside dimensions of these cabinets are:
28 1/4 x 45 1/2 x 18 inches
or 71.8 x 115.6 x 45.7 cm

The dog box needed for a 2202 is fairly large. I don't have the exact dimensions right now, but when thinking about a design you need to keep it mind if you build just one box.

yggdrasil
07-11-2008, 06:31 PM
Maybe an Edgar Horn should do it or do you have a suggestion ?

When reading about T/S parameters for cone transducers used with horns I realized that the 2202 is close to perfect for horn use.

Since I have a pair, and I have been playing with the idea of bass horn for a long time, the T/S parameters was entered into Hornresp. A quick sim is shown in the attached pictures. It is huge though.... 1.5m3.

vernb
07-11-2008, 11:55 PM
The outside dimensions of these cabinets are:
28 1/4 x 45 1/2 x 18 inches
or 71.8 x 115.6 x 45.7 cm

The dog box needed for a 2202 is fairly large. I don't have the exact dimensions right now, but when thinking about a design you need to keep it mind if you build just one box.

Hi John (and the rest of you)
I also have 2202 lying around that I would like to use for midbas/lower midrange. But I really would like to know the box size needed for it to play down to 300hz where I would have a 2225 to take over. my total box size is 210 litres.
thanks
Vern

Robh3606
07-12-2008, 07:44 AM
But I really would like to know the box size needed for it to play down to 300hz where I would have a 2225 to take over.

Here you go. Use Win Isd

Rob:)

http://www.linearteam.dk/default.aspx?pageid=winisd

Guru
09-03-2008, 02:18 AM
Hi guys :)

Im slow but i think i have an idea of how my system should look like :o:

My system will be as follow:

2435 HPL in Smith horn 1000Hz-
2202H in 35Liters closed cabinet 120-1000
2235, 2242, 2245 or 2203A from 30-120Hz

I need some input on my choice of LF driver....What driver should i choose and why ??

I will soon put up some pics on Smith horn and 2202 cabinet...

/M

4313B
09-03-2008, 06:14 AM
2235, 2242, 2245 or 2203A from 30-120Hz

I need some input on my choice of LF driver....What driver should i choose and why ??The 124/2203 is a really nice driver, very fast and powerful but limited xMech. It won't keep up with a 2202. The LE14 won't either.

The 2235H is nice if you don't have room for an eighteen.

The 2242 isn't quite as effortless on the very bottom end as the 2245 but it has a very clean sound character and it handles unholy amounts of power.

The 2245 has the most effortless bottom end of the bunch and it is very articulate. It is a true very low frequency transducer. The LE14 is a close second but it doesn't have the efficiency.

Guru
09-03-2008, 10:13 AM
The 124/2203 is a really nice driver, very fast and powerful but limited xMech. It won't keep up with a 2202. The LE14 won't either.

Is it the lack of power handlig that make the 2203 dont keep up with the 2202's ? Is that really a problem if im not planning to play 140 db ?

/

4313B
09-03-2008, 11:03 AM
Is it the lack of power handlig that make the 2203 dont keep up with the 2202's ? Is that really a problem if im not planning to play 140 db ?

/It's the efficiency difference. JBL used two 2235H's to keep up with the 2202 and that's with bi-amping. You can certainly try the 124 or 2203 if you want but I would argue against searching them out if you don't already have them. If you're sold on the small size of the 124 or 2203 then use the "better" LE14H instead. It doesn't have quite the punch but it's better balanced and sounds really nice.

Guru
09-03-2008, 01:13 PM
It's the efficiency difference. JBL used two 2235H's to keep up with the 2202 and that's with bi-amping. You can certainly try the 124 or 2203 if you want but I would argue against searching them out if you don't already have them. If you're sold on the small size of the 124 or 2203 then use the "better" LE14H instead. It doesn't have quite the punch but it's better balanced and sounds really nice.

Im getting confused...2203 has 93db and LE14H 91db...:hmm:

4313B
09-03-2008, 01:29 PM
The 124/2203 and the LE14 had roughly the same sensitivity of 91 dB, 1W, 1m.

Guru
09-05-2008, 04:25 AM
I ran into TAD TL-1601B so ill try to use them for the LF :o::o::o:

matsj
09-05-2008, 12:47 PM
Nice woofers.

mats

Guru
09-06-2008, 01:38 AM
Nice woofers.

mats

You should know :D but why didnt you use them ?

matsj
09-06-2008, 06:22 AM
I´ll go with 1603.

mats

reVintage
09-17-2008, 12:30 AM
Heja Guru,

Why not horn loading the 2202? A 120Hz mid-horn isn´t that big. Have made plans for my own 100-300Hz to be used on the floor against sidewall below my sidewall mounted 2441/Tractrix.

EDIT: Checked and I was totally out of bounds. The 2202 is totally unsuitable for a mid-horn, you would need a compression of over 10:1 to make it work. So go for closed or vented.

reVintage
09-17-2008, 01:11 AM
To let the 2202H breath easy I´d suggest trying to go vented.

When using my Onken spreadsheet(4th order Bw, n=6,34) you get a F3 of ca 120Hz with a Vb of 15dm3. Using a baffle thickness of 22mm for portlength you get ca 7*7cm

Going for Bessel n=4,5 gets you a F3 of ca 150Hz with a Vb of ca 10dm3 and 5*5cm port.

But this spoils your plans of crossing over at 120Hz.......