on Sale - $55/pr (drivers & XO)

[Erich H]

Re: on Sale - $55/pr (drivers & XO)

The ND20FA-6 is now $17.89!!! :eek:

I had four of them in my cart at $6-something each before, just didn't pull the trigger in time! Now building the four surrounds for my system is going to cost an extra $40 just because of bad timing... did the cost of the Neo magnet go up enough to justify a 2.5X increase in the price of the ENTIRE ASSEMBLED DRIVER? I don't think so.

So at full pop for the drivers now, what's this "$55/pair" budget build going to cost now?

Someone mentioned they might go up a few weeks ago. To be on the safe side I bought a bunch of them at their old price to cover a good portion of the flat packs that the CNC company is suppose to be cutting any day now. I think they originally sold for a little under $9.

[superspeeder]

Re: on Sale - $55/pr (drivers & XO)

The ND20FA-6 is now $17.89!!! :eek:

I had four of them in my cart at $6-something each before, just didn't pull the trigger in time! Now building the four surrounds for my system is going to cost an extra $40 just because of bad timing... did the cost of the Neo magnet go up enough to justify a 2.5X increase in the price of the ENTIRE ASSEMBLED DRIVER? I don't think so.

So at full pop for the drivers now, what's this "$55/pair" budget build going to cost now?

[Soundslike]

Re: on Sale - $55/pr (drivers & XO)

Regarding the supplied gaskets , they are minimal to say the least -- I personally don't think they can be relied on for flush mounting because they're not thick enough to provide a good seal unless the mating surface is just about perfect. If the driver is to be surface mounted, with the flange mating to a smooth MDF baffle, the gasket should be adequate. But, I rarely end up with a surface that good when I make the necessary rebate for flush mounting the driver frame.

[Erich H]

Re: on Sale - $55/pr (drivers & XO)

Rounding it up to an even 2mm would give room for gasket material wouldn't it?

They come with gasket material already glued to the flange. Believe it or not, it's still not quite 2mm thick.

[Soundslike]

Re: on Sale - $55/pr (drivers & XO)

I recessed mine, which are just about finished. It was one heck of a job, as I reported earlier. The CNC company would probably rather not get into it. Seems to me they would have the same problem I did -- the dimensions provided on the data sheet aren't complete enough to allow one to recreate the shape of the driver. I think it looks better, in my humble opinion, but you can be the judge when I get a few photos posted.

[Leroy R]

Re: on Sale - $55/pr (drivers & XO)

Rounding it up to an even 2mm would give room for gasket material wouldn't it?

[Erich H]

Re: on Sale - $55/pr (drivers & XO)

Well, it won't make them any prettier.

It's MUCH more important to have the back side relieved so the little buggers can breathe.

Chris

Yeh, I'm going to do that myself after I get them from the CNC company. It will keep them from charging extra to have someone do it. I don't mind doing that part for free, it can't take long.

So are you saying not to worry about the recess? If they can nail that odd shape, would it be okay to recess it 2mm? Or should I just tell them not to worry about it at all?

[Chris Roemer]

Re: on Sale - $55/pr (drivers & XO)

Chris, I got a call from the CNC company about the flat packs. Does the woofer need to be recessed? The tweeter will be of course, but he said the woofer flange is so thin, the recess would only be about 1.5mm.

Is that worth doing?

Well, it won't make them any prettier.

It's MUCH more important to have the back side relieved so the little buggers can breathe.

Chris

[michiganpat]

Re: on Sale - $55/pr (drivers & XO)

Chris, I got a call from the CNC company about the flat packs. Does the woofer need to be recessed? The tweeter will be of course, but he said the woofer flange is so thin, the recess would only be about 1.5mm.

Is that worth doing?

dunno if it would change the crossover at all, but what would be sweet would be to have a nice clean round hole with a 1/2" roundover on it, and rear mount the woofer....

[PWR RYD]

Re: on Sale - $55/pr (drivers & XO)

After measuring the in-box response of the ND105-4 it's my opinion that a 1.5 mm recess would make no audible improvement. I wouldn't worry about it.

[Erich H]

Re: on Sale - $55/pr (drivers & XO)

Chris, I got a call from the CNC company about the flat packs. Does the woofer need to be recessed? The tweeter will be of course, but he said the woofer flange is so thin, the recess would only be about 1.5mm.

Is that worth doing?

[honfatboy]

Re: on Sale - $55/pr (drivers & XO)

Yup. Macs were never really intended for doing any real science on. In fact, they're sorta geared toward anti-science, free-form, if it doesn't quite work right, "no problem, I'll try it over" types.

I was forced onto one where I work a couple years ago, and it's been going steadily down-hill ever since.

Chris

But they're SILVER...so there.

[greywarden]

Re: on Sale - $55/pr (drivers & XO)

Hahahaha!!! That's too funny. I haven't messed with one, since I was playing Oregon Trail off a 5.25" Floppy haha

[Chris Roemer]

Re: on Sale - $55/pr (drivers & XO)

Thanks for the advice.

I don't have access to a Windows machine. Speaker designing on a Mac seems to be impossible. :(

Yup. Macs were never really intended for doing any real science on. In fact, they're sorta geared toward anti-science, free-form, if it doesn't quite work right, "no problem, I'll try it over" types.

I was forced onto one where I work a couple years ago, and it's been going steadily down-hill ever since.

Chris

[honfatboy]

Re: on Sale - $55/pr (drivers & XO)

Why, according to my calculator, a 0.40" high slot, the internal width of the cab (4-3/8") that was 7" long (deep) should be equivalent to the 1.5"id x 7" cardboard tube I used. A slot that thin might chuff a lot though, even worse to put it on the front.

A better bet though, would be to model it with WinISD from www.linearteam.org

Chris

Thanks for the advice.

I don't have access to a Windows machine. Speaker designing on a Mac seems to be impossible. :(