Altec 9844-8B

[Skywave-Rider]

Tim, I wrote a response to your PM, but your settings don't allow me to reply. So I'll copy it here and hope you check back:
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NIce to meet you, Tim.

You should be able to make a great 2.5 setup with your Altecs.

I'm running, if I remember correctly, a 20mH coil in series to the helper woofer.
http://www.partsexpress.com/pe/showd...229110#reviews

As for horns, my 9844s are vintage, so I am leaving the 811s, which I like. You could go with 511s, which are bigger and slightly smoother. Or you could go modern -- you might want to try these (I'm using them in another project: {JBL 1" thread-on Progressive Transition, Part# 338800-001, 90° x 50° dispersion pattern, flange dimensions 12" W x 6.5" H, 6.25" D including driver, $9.90 each. Order direct from JBL Pro Parts with credit card:}
http://www.jblproservice.com/forms/parts_order1.html

If you are interested, the 414s would be suitable for use in the "Econowave" concept; which incorporates that waveguide with a cheap Selenium driver. Look here:
http://audiokarma.org/forums/showpos...&postcount=228

If you want to use a traditional 1200Hz crossover point, like I am with my Altecs, you can't do Econowave, as it crosses higher.

In the 9844 thread you will find schematics for both the N800F stock crossover which I am currently using (with 2.5 added,) and Zilch's M-19Z, which works great but the low pass needs tuning in my 9844s.

Let me know what u intend to do.

Hi Skywave-Rider,

I found your thread 9844: http://audioheritage.org/vbulletin/s...ad.php?t=18913 . I am very interested in your method of using the 2nd 414 woofer for 200hz and below. Would you mind emailing me a schematics for this setup. I currently have 4 414 woofers but dont have horn or drivers yet, what would you recommend for me to use since you have lot of hands on experiment with this setup. Thanks much.

Tim

[MrT]

Zilch & Skywave

You guys went all the way with this project. I read it all the way. Great job! 806a indeed has its limitation. Simply put it, the high is missing.

I am very interested in buying a pair of BMS4552nd. Where can I find them and how much are they?

Thanks for all the works you've put into the thread.

mrT

[Zilch]

US Speaker is the distributor for BMS.

http://www.usspeaker.com/homepage.htm

They don't stock 4552nd, but will have them drop-shipped to you from the rep, Assistance Audio in SLC.

Tell 'em Zilch sent you....

[MrT]

Hi Zilch

Thanks for the infos. Have you tried B&C de 250 or de400? How would they work?

On my side, I tried everything to boost up the high on those 806as. I give up. I thought about going with active but in the end taking that rout will cost more. So, buying a pair of new drivers will be the best way to go. So, here I am. It really had fun going through this thread. It is so amazing to see how this thread is keep on moving.

Timp

[Zilch]

I have not tried B&C.

Note that BMS 4550 sounds about the same as 4552nd, if you prefer to spend a little less.

[Not as cute, tho.... ]

[MrT]

Hi Zilch

I am all for saving money. What is the price difference? 10, 30, 100? If the difference is small, I will get the cuter ones.

Thanks.

Tim

[Zilch]

~$50 each.

[MrT]

Zilch

I called them. And I said, Zilch directed me to come to you. The guy said, who? Anyways, to cut the long story short, the sales guy was highly recommended me to buy something else. So, I didn't. Here I am being a little confused. I was locked onto buying 4550s.

Oh well.

MrT

[Zilch]

4550s are fine....

[MrT]

are you here already? well. the guy said that they may be too fatiguing. and told me to buy something that are fuller.

anyways.

Thanks

[Zilch]

Something with a higher profit margin for him, no doubt.

Does he have them for sale or not?

This is Al at U.S. Speakers?

[MrT]

You got it. Al has a couple of 4550s left.

Tim

[Zilch]

He's told me this before, basing his opinion upon the reactions of clueless users who don't know HF compensation from a hole in the ground. He doesn't want another dissatisfied customer, is all.

I'd buy 'em....

[Skywave-Rider]

Tim,
I got the same "suggestion" when I called to order 4550s. The hard sell was for a Beyma driver.

[MrT]

Man! I can't believe it. Yes! Beymacp380nd! Yup! Oh well. Zilch and Skywave, I just put my order for 4550s. It could have been so simple. But nevertheless,....

Once I put my drivers in, I will post. It's been a long and fun journey.

Thanks Skywave and Zilch.

Tim