audio 02 grand prix

[I800C0LLECT]

Funny, nobody cares about baffle design in car audio :> But they still enjoy the labels

I think this guy was talking with the speaker designer at AE for his application. He never posted his reasoning but at some point said his application required ~18 cubic feet or something rather? I wish the installs would submit more background in choice and design so it's not so hard to figure out.

 

[matt5112]

Funny, nobody cares about baffle design in car audio :> But they still enjoy the labels

I think this guy was talking with the speaker designer at AE for his application. He never posted his reasoning but at some point said his application required ~18 cubic feet or something rather? I wish the installs would submit more background in choice and design so it's not so hard to figure out.

John at AE isn't very knowledgeable. Either he is, or refuses to show it in order to get people to buy more of his product. An MTM using 15" drivers and a horn? It spells one thing, no off-axis response.

Note he didn't design the lambda motor, he just makes them currently.

Quote for AE site:

The Lambda 001 motor was designed by Nicholas McKinney from Lambda Acoustics Inc. Designed over the period from 1997~1999, tremendous effort was given to create the lowest possible distortion. The Lambda drivers now live on as the Lambda Series from AE Speakers.

As for the thing about sharing ideas... Its not difficult to figure it out, spend more time looking at the ones that do explain and you'll easily be able to figure out the other ones.

 

[I800C0LLECT]

Well actually that's what confuses me about using horns...off-axis. That's exactly what I noticed when looking at that guys install. Since I havent' studied their use yet my assumption was that it wasn't an issue.

Anyways, the more I learn about AE the less I'm impressed. I still have a lot of reading to do though

 

[matt5112]

Well actually that's what confuses me about using horns...off-axis. That's exactly what I noticed when looking at that guys install. Since I havent' studied their use yet my assumption was that it wasn't an issue.

Anyways, the more I learn about AE the less I'm impressed. I still have a lot of reading to do though

Basically AE is the only place to get the lambda (aka wavelength for physics people) woofers which are some of the best for home audio. Not so much in cars since they really are too big.

In a car... horns don't work as tweeters are supposed to be at the same level as your ear.

 

[I800C0LLECT]

I was all over AE for the lambda. Reading revealed exactly what you stated. Grabbing the DIYMA R12 was a pretty good move in the end. I'm very happy with that.

I've been thinking about horns due to their install technique. I like the idea of a factory look. Pushing them up in the dash and against the firewall would be great for that application.

 

[matt5112]

Is that the driver with the cone so thin it that the thermal power rating was actually changed to represent the mechanical power rating?

Where though? Tweeters have to be at ear level or they don't image properly.

 

[I800C0LLECT]

I'm not so sure the history of it's rating. But I thought it had always been rated up to 1000watts continuous.

They are pretty fragile cones. Made out of aluminum. If the owner doesn't know what he's doing then he can damage it fairly easily. I think one of my nieces tried pushing on the cone and left the tiniest indention. I still put it in and after I ran some power to it the cone is fine now. Matter of fact it may have pushed that blemish out?

They're designed to use low air space and they play flat up to 1khz. Ideal is about .5 cubic w/300-500watts I believe?

The horns don't act like tweeters from my understanding. Since it's based on compression you don't need to use them at ear level yet you still maintain a high sound stage. Wave guides are pretty interesting. Patrick Bateman is a big fan of those on DIYMA.

DIYMA 12" Sub CLEARANCE ... until supplies last - DIY Mobile Audio

DIYMA Ref12 vs. SI Mag v4 - DIY Mobile Audio

DIYMA 12 sub clearance recipients - Page 2 - DIY Mobile Audio

 

[matt5112]

Grab a horn and try it out at home first and see what you come up with.

(larger enclosures INCREASE powerhandling)

This is why I asked because that is an absolute failure of a driver design. It should be the exact opposite.

You also don't want to use a driver that is going to have a decent Xmax in the midrange as you'd just hear IMD.

 

[I800C0LLECT]

Well...I see your point but I think it was taken out of context...

* Acceptable enclosure size: .25 to 1.5cft sealed box (larger enclosures INCREASE powerhandling)

He was speaking within the realm of "acceptable" enclosures. The larger enclosures would be band pass or ported(my assumption). Due to the fragile cone I'm not so sure you'd want to try and attempt 1000 continuous watts w/.5 or less enclosure.

The pressure levels COULD fold the cone when used inappropriately. It's not designed to be used as an SPL sub. It was designed to be used with a Q of .707 with reasonable power so that it's function is transparent with your front speakers.