Single sheet TH challenge

.......just curious as to why you bought a speaker without knowing the T/S first ?
What's with the harassment?
.................change your screen name to Big D
What possible harassment is there in asking what i did ...............I'm sure AndrewT can speak for himself, & won't have taken it the wrong way ..........Whatever that's supposed to mean ?
I saw a recommendation for a replacement driver for the single sheet TH.
I have been following the thread and have had time to assess the credibility of the Members posting here.
I decided to buy based on (in my view) a credible recomendation. I don't need PA levels for large audience.
Your post does seem to me harassment. But I sometimes write my post in a manner that appear show disrespect. I regret that. I hope I don't challenge.

How can you state "I'm sure ................. won't have taken it the wrong way" ?

That's supposed to mean big Dunce. I on my way to deciding on that view, but I can await your reply before reaching a conclusion.

I can justify my own decisions, but I do not read your post as looking for my logic in arriving at my decision to purchase. I read it as a criticism for buying without knowing. The tone in the question gave me that impression.

edit,
I have done a quick head count and estimate that >90% of the speakers I have had or still have were bought without knowing the T/S
If I go on to include the cone speakers in the PCs and portable radios and alrams etc, I suspect the unknown T/S proportion rises to >99%
 
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Originally Posted by AndrewT

I saw a recommendation for a replacement driver for the single sheet TH.
I have been following the thread and have had time to assess the credibility of the Members posting here.
I decided to buy based on (in my view) a credible recomendation. I don't need PA levels for large audience

That's fine, obviously i wasn't aware of that, as you didn't mention it in the post.

Your post does seem to me harassment.

I really do not see how anyone could come to that conclusion, based on my asking a straightforward question ? As i've already said, if anyone asked me the same question, i wouldn't hesitate in explaining, or think Anything untoward either.

But I sometimes write my post in a manner that appear show disrespect. I regret that. I hope I don't challenge.

I didn't notice Any disrespect, & there was NONE given or intended on my part ! And there's nothing wrong in challenging opinions etc, that's how we can learn & progress etc ;)

How can you state "I'm sure ................. won't have taken it the wrong way" ?

Because i expected you would take my post exactly as written, without interpreting it into something i didn't write or mean. Plus due to several recent friendly PM's we exchanged.

I can justify my own decisions,

I'm sure you can, and i didn't say otherwise.

but I do not read your post as looking for my logic in arriving at my decision to purchase.

That's good to hear :)

I read it as a criticism for buying without knowing.

You did buy without Actually knowing. That's not criticism, it's a fact.

The tone in the question gave me that impression.

All i said was that i was "just curious ..." I didn't imply or state Anything else. I'm sorry if you & anyone else misinterpreted Exactly what i wrote, but in Only wrote what i did & nothing else.

If someone, not me as it wouldn't even cross my mind, were to have said for eg: Hey dude wutz up with shelling out da $'s when you don't got no info on da stuff, you're a clutz. Or words to that effect. Then that would we both harassment & criticism !

I have done a quick head count and estimate that >90% of the speakers I have had or still have were bought without knowing the T/S

Different strokes (pun intended) ;) for different folks. From what you said, that means that you don't start off with a fixed box design/size etc in mind, for >90% of the time.

If I go on to include the cone speakers in the PCs and portable radios and alrams etc, I suspect the unknown T/S proportion rises to >99%

Well they aren't as critical to the outcome compared to Home/PA etc criteria IMO.

Regards,

Zero D
 
Balderdash.
I don't accept any of your justification.
I do accept that you did not intend to harass.
Let's leave it at that.

The general rule for this Forum is no personal attacks.
It took me a while to adjust to both sides of that. Some can never stop themselves from making personal and racial attacks and yet we rarely see any action being taken to restrain them. I intervene and remind folk: This is basically a technical Forum that generally discusses technicalities.
That's probably why I sometimes get criticised for adopting a policeman's hat.
 
You talking to me ?

I presume you were ;)

Originally Posted by AndrewT

Balderdash.

No, not one bit of it ! But you're welcome to your opinion, as i am.

I don't accept any of your justification.

You don't have to, as i did NOT attempt to justify, as there is Nothing to justify, only explain my being "just curious" etc.

I do accept that you did not intend to harass.

Thank you :)

Let's leave it at that.

Fine by me.

The general rule for this Forum is no personal attacks.

And so it should be :) And i didn't make any, nor would i.
 
And now for the bit we've all been waiting for...

AndrewT - when you've got it installed, please let us know if speaker is doing its job

I'm guessing it'll go to about 3 dB less than the 3015LF due it's lower xmax. I am especially interested because where I am DAP audio isn't regarded too kindly by most audio professionals, and I almost bought the thing once already :)

Regards, Ben
 
I am not referring to a Wayne Parnham, how does he spell that?

I am talking about the Horn I started about 4years ago. I estimate it has room loading between Pi and Pi/2.

It will be 8m long and 3.6sqm mouth area. Driven by 4 or 5 Tannoy low Q 15" bass units. I have not decided whether to make a straight horn or to fold the smaller Throat half to fit it into the loft. The Mouth half is built into the floor and roof structure of my bedroom and bathroom loft space.
 
ss15-2.82v-VS-28.3V_05.jpg


Remember this? In the last picture you can see how your SS15 looses it's effectiveness when driving harder. This is the result of BL dropping and complex air mass and speed changes. That's why I asked you a while ago to measure your SS15 at full load. And this is the real key for improvement.

Or does anyone design PA cabs for 1V/1m use or believe HornResp predictions at Xmax and *higher*...:rolleyes:

(*higher* = [Xmax +Xlim] : 2 :D)

With the furybox and its predecessors, I tweaked the box in horn resp at both 1v1m and operating level based on the clip points. I then tweaked back and forth to find the best balance. I added compression via the baffle to protect the woofer a bit more. The rest had to be done by physical trial and error to get the sound I was after.
IMO On reflectors, it seems sometimes only one in the right place fixes standing wave issues in the 90-100hz region enough for low budget.

The ss15 looks like a good build.
 
I have 4 SS15s 2 with the 3015LF and 2 with a JBL 15... I can't recall the model number.. I have been running the 2 with the 3015 LF for almost a year now... December of 10 was when I used the 3015 for the first time.... I have been overpowering these things like crazy, and I probably wouldn't recommend it... I have a QSC 2402 which I run bridged mono to 2 speakers and run all my levels as close to 0db as possible with the occasional clip here and there, then I back it down... the pic above was taken from the 3rd floor and the ceiling went as high as the 5th floor... This place is Huge.. I think this has been one of the biggest challenges for my speakers and for this party I felt like I needed another pair.. The EVs (Mains) they Rock! The ss15 they rock too but the people wanted them louder...

An externally hosted image should be here but it was not working when we last tested it.
 
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Gents, still making my way through this entire thread but thought I'd ask a quick question. Is consensus still the 3015LF for bang for the buck? These look to be right around $300-$325. Is there a 4ohm alternative that models similarly like one of the faital pros? With just a single, a 4ohm variant would make the most from my amp.
Thanks in advance.
 
Hi!

B&C 15CL76, plus restriction at throat (round form indicated by jbell), already tweaking but appears a candidate...

:cop: Links to photo site with porn ads removed. Please read the rules!

I like the result.

15NDL76 may be a good try.

Happy Christmas to all!

Regards,
 
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Yup it was right around when I bought my first one. Damn China and their neo prices.

I think the 3015lf was a great balance of weight, efficiency, x Max and price at the $150-200 price point. Now at $300+....ehh id look elsewhere.

If you can deal with a few extra pounds, check out some non neo drivers to keep price down. I'd rather carry 10 more pounds and have an extra hundred in my pocket. ;)