Beryllium diaphragms ??

[kartsmart]

Hey Hack ,


exciting stuff dude . I look forward to your impressions ...... Not wishing to piss on your fire ,but you may find the horn holds you back a bit . You may find you need a horn with more loading to make the most of the extension you will get below 900 hrtz ... Just my opinion .

The slots may be redundant too. You should be able to get the 2441 flat past you hearing . Maybe a Ribbon or the TD 703 ?


Rich

So Rich what would be your choose for a horn , and drivers ?

[maxwedge]

They sound really nice is about the best I can put it!
I have mine in 2245's w/2385 horns and a 630hz x-over. I like the lower crossover much better than 800 with my system. The mids are 2206 with 2404 on top at 8k. I tried 3way but they dropped off fast ~10k, but then I wasn't using any compensation for my CD horns when I measured them, so I think I'll try 3way again!

Close up

[Eaulive]

Cool!

[richluvsound]

So Rich what would be your choose for a horn , and drivers ?

Hi Ksmart ,

the smith horn, H9800, H4338, TDH 4001, would be my choices .... I fought against a 2-way for along time ,but hearing is believing .

I have found that since I built a Class A amp , used a quality DAC , a solid no whistles Pre-amp . I don't miss a tweeter .I just present the best possible bandwidth to the speaker and let it do its job,not feed crap and expect the speaker to resolve the sign al for me . Perhaps its subjective . There are people hear ,that I respect greatly, that prefer a tweeter.
Beryllium is not a new thing ,TAD has been using it for years.

Rich


BTW , I can still hear at 17 khtz .

[pos]

A Smith horn would not be the best choice for a two way, as it has serious directivity issues (and lobes) above 7 or 8khz. It also does not load the driver very low compared to the smaller H9800.

[richluvsound]

A Smith horn would not be the best choice for a two way, as it has serious directivity issues (and lobes) above 7 or 8khz. It also does not load the driver very low compared to the smaller H9800.

Pos,

Am I getting them mixed up ?.... I mean the one that Woody made ?

Rich

[kartsmart]

A Smith horn would not be the best choice for a two way, as it has serious directivity issues (and lobes) above 7 or 8khz. It also does not load the driver very low compared to the smaller H9800.

My original plan was to use
E-145 2397 2405 2245 subs
or 2245 2123 2307 2405
or E-145 2123 2397 2505
I can see with the 2397s it would have to be a 3way being a tweeter is needed, but aways liked the bash the top end was good for and the bottom that the 2245 and E-145 brings is there better ? .Getting newer horns seems hard to get and need a boat load of money to. I have everything but the horns , I tried to cast the TH4000 horns out of cement but did not work out as well as planed just didn't sound right. need some horns.

[JeffW]

Pos,

Am I getting them mixed up ?.... I mean the one that Woody made ?

Rich

Woody's were sort of based on the Yuichi's that were sort of based on the TAD.

[richluvsound]

Woody's were sort of based on the Yuichi's that were sort of based on the TAD.

Thanks Jeff ....

[macaroonie]

I like your horn Rich Hows the hips ?

A previous poster referred to a 630 Hz crossover bass to mid , I concur , I have gradually crept down there and all is good. B&C DE85Ti with magic dust on 2380

[richluvsound]

I like your horn Rich Hows the hips ?

A previous poster referred to a 630 Hz crossover bass to mid , I concur , I have gradually crept down there and all is good. B&C DE85Ti with magic dust on 2380

Hi Mac,
Hips are doin ok .... just gotta be patient . BTW, do you still want that mould ? it needs a bit of work , but your welcome to it . Its an out door project and now is the time !

630 Hz does work nice here

Rich

[pos]

630 Hz does work nice here

You are using your H9800+2435SL that low without issue?
What crossover slope are you using? At that low a frequency on the H9800 you need to seriously take the horn rolloff into account when calculating the final acoustical slope (even at 800Hz in fact, as in the S9800).
Good to hear your hips are ok!

[pos]

My original plan was to use
E-145 2397 2405 2245 subs
or 2245 2123 2307 2405
or E-145 2123 2397 2505
I can see with the 2397s it would have to be a 3way being a tweeter is needed, but aways liked the bash the top end was good for and the bottom that the 2245 and E-145 brings is there better ? .Getting newer horns seems hard to get and need a boat load of money to. I have everything but the horns , I tried to cast the TH4000 horns out of cement but did not work out as well as planed just didn't sound right. need some horns.

2245+2123+2397+2405 would have my vote.
To sound good the 2379 needs to be crossed at 1khz or higher, and at this frequency the E145 would not have a wide enough directivity to match the 140° of the 2397.

[richluvsound]

You are using your H9800+2435SL that low without issue?
What crossover slope are you using? At that low a frequency on the H9800 you need to seriously take the horn rolloff into account when calculating the final acoustical slope (even at 800Hz in fact, as in the S9800).
Good to hear your hips are ok!

Heir Flux may want to confirm that FQ

[Guido]

Heir Flux may want to confirm that FQ

It's more like 750 - 800 Hz.