2225h, 2425j 2405h (077)

[Zilch]

Dropping the room / bass diskussion for a moment.....

I was thinking of a H91/2425h-Titanium and a 077 (2405h) combo.
Probably, I will try creating a crossover point at 1200 between the 2225 and the 2425 and a crossover point around 8kHz beteween the 2425 and the 077.

Do you guys know if there is an "on the market" crossover that I can use or tweak so I don't have to start from the beginning with everything?

Has anyone tried something like this?

3120 + 3105

I'm just trying to bring perspective to this project. It's 2225H + 2425J on something + 077, in 2.65 cuft. I WOULD use 2370A, probably, for the horn. An improved crossover for that was posted here recently. Combine with DIY 3106 maybe, or something even higher parsed from N3133, as I have posted earlier....

http://audioheritage.org/vbulletin/s...944#post197944

[seeker]

Thanks Zilch: Will I always be needing an equalization link or could that be avoided with a H91 and a lens? I was under the impression that a lens could make things easier...? Just something that I have heard.

What are your thoughts regarding the comparison of H91/lens and 2370?

/Patrik

[Zilch]

I don't mess with H91 except as a matter of academic interest.

I like the pattern control of the Biradials better than the lens, and the PT waveguides even better.

That said, I have tried what you are proposing for M/H, it sounds quite good, and is documented in these forums here:

http://audioheritage.org/vbulletin/s...ad.php?t=12522

See also:

http://audioheritage.org/vbulletin/showthread.php?t=166

[seeker]

I don't mess with H91 except as a matter of academic interest.

I like the pattern control of the Biradials better than the lens, and the PT waveguides even better.

That said, I have tried what you are proposing for M/H, it sounds quite good, and is documented in these forums here:

http://audioheritage.org/vbulletin/s...ad.php?t=12522

See also:

http://audioheritage.org/vbulletin/showthread.php?t=166

Ok, what do you mean by "I don't mess with H91 except as a matter of academic interest"? My English isn't that good I'm afraid...

Swapping the LE85 in the thread with the H91/2425. Do you think that it is a similar crossover and similar performance?

Can 8 Ohm attenuators be used for the mid and high?

/Patrik

[seeker]

Anyone here that has tested 2405h(077)/2425(6)j?
If yes, what was your impression?
What combination of horn etc. did you use?

Listened to horns last night.... Damn, that is something else!

/Patrik

[macaroonie]

http://www.audioheritage.org/vbullet...ad.php?t=19903
This is right up your street.

[seeker]

Very interesting thread! below! Nice speekers also! I have bought 2425j/2370 and now have the following drivers:

2405h
2425j/2370
2225h

But, Is there anyone out there who has tested the 2425j/2370 and 2405h together?

/Patrik

[SMKSoundPro]

I have the same components here.

2225/2425-2370a/2405

I am listening to a 2235 in a L200b cabinet, actively crossed over at 800hz using a JBL 5234 crossover, and into a 2445 - 2385 40x90 degree horn, then using a 3105 passive to add the 2405 slot.

I had a difficult time getting to sound like something I was used to.

The next box I am building for the small dance floor is;

2225 woofer and a 2425 - 2370a horn in a trpezoid shaped cabinet, akin to the JBL 4725. (see link: http://www.jblproservice.com/pdf/SR-Series/SR4725.pdf

I have one cabinet mocked up and ready to cut all of the parts. I was planning to biamp them, but Zilch's comments on other threads are causing me to re-think that approach.

I see this 15 and horn box in almost every brand of "pro" speaker, and of course I see the simple L200 as it's father figure.

I agree with using the 4507 cabinet and mounting the 2370 horn in it. Looks great, Bet it sounds good!

(Confusing post. Must try more coffee.) Scott.

[seeker]

Hi!

The 2425j that I have (going to pick it up today) has a Titanium diaphrame. Does anyone know where to find a graph to compare to the official in aluminum ones?

Also, if I want to try going active what are the things to think of and also, what crossover frequencies should I go for?

I dont have unlimited power on the active amlifiers (I just want to try it).

2405h (077
2425j Ti (2370)
2225h

/Patrik

[Zilch]

They never came with aluminum diaphragms, so there's no "official."

You buy them, you try them, and compare yourself....

[SMKSoundPro]

Try an active 3-way crossover like the dbx 234, Rane Ac23, or JBL m-553.

I am crossing at 1.2k from the 2225 woofer, to 2425/2370 mid, and 7k from the 2425 mid to the 2405 UHF. I plan on using this speaker box (X4) downstairs in the small dance floor with 8 - 18's for a little sub kicker.

I use older pro amps from the early 80's ie: Yamaha p2200, P2100 and P2150 here in the shop. Work great.

I also have a hafler 500, crown D150, and D60 that I have yet to try. I don't have a Crown 300.

(Anyone got one of the older silver models to match my vintage crown rig?)

Please report back with your results.

scott.

[seeker]

I am too new to this...... I thought that Alu was the "original"....

SMKSoundPro: Cool, do you have any Equalization going on? Active or passive??

/Patrik

[Zilch]

I am too new to this...... I thought that Alu was the "original"....

It's considered an "upgrade" for home use of those drivers....

[seeker]

I know that the ti version goes higher up in the freq. but is there anyone that has a plot or anything of the 2425(6)/2370 with the Ti diaphrame? Does anyone have any info on the caracteristcs?

/Patrik

[Zilch]

Go to the JBL Pro website and look up the 2370A horn data sheet in "Products" under "Components."