Jump to content
liljestrand

would this work.

Recommended Posts

Ok so atm I have the ia comps and have them set at 120 lpf. If I go lower they start to bottom out.

So I was thinking of going to a 3 "way" setup with some of the new sa8 v2's. I thought about trying to make them fit in the door but thats unlikely

So my next thought is to either box them under the front seats or......build boxes to place behind the front seats on the floors.

Now I'm only wanting these to fill in the 60ish-120ish area so I'm thinking sealed boxes.

Would this work or is it just a plan to fail?

Share this post


Link to post
Share on other sites

Hmmmm

Share this post


Link to post
Share on other sites

In short, no. Mid-bass frequencies are better in front of you. If you want to play lower upgrade. I have Mach 5 MLIs and they are crossed over at 60hz. I used to have those components and they played down to 80hz for me fine.

Share this post


Link to post
Share on other sites

I would recommend either the new NeoPro 6.5" that are coming out or going with the NeoPro 8" from Sundown. They were designed to be ran as a midbass in door applications.

Share this post


Link to post
Share on other sites

I bought a set of PPI PC3.65c's and have the same problem with no low end extension what so ever and if it is played anywhere near 100hz or lower it just sounds like they have a hard time trying to play the notes, i am thinking about getting 4 of these to replace those mid's. From everything i have been able to find you just want to cross them over around 2500hz and under so if you go with a 3way set-up you should be good to go.

http://www.diycable.com/main/default.php?cPath=24&Cid=f704ecd3f26cfa4c90b3a7773a1b60af

Share this post


Link to post
Share on other sites

How well is your door installation ?? meaning Sound Deadning through out ?? seal all the air openings ?? any foam to help prevent air leaks ???

Share this post


Link to post
Share on other sites

Did the full sds treatment. cld,ccf.mlv will be pulling the panls to confirm its bottoming out and not something hittin the speakers

Share this post


Link to post
Share on other sites

In short, no. Mid-bass frequencies are better in front of you. If you want to play lower upgrade. I have Mach 5 MLIs and they are crossed over at 60hz. I used to have those components and they played down to 80hz for me fine.

For true midbass frequencies, having the speakers located in front of you doesn't really matter. But you would still want them as wide as possible.....under or directly behind the seats are both generally poor options.

I don't see why you shouldn't be able to get performance under 120hz with them unless you are simply pushing them significantly past their output limitations.

Are you playing them at an excessively loud level when they appear to start bottoming out?

Share this post


Link to post
Share on other sites

I bought a set of PPI PC3.65c's and have the same problem with no low end extension what so ever and if it is played anywhere near 100hz or lower it just sounds like they have a hard time trying to play the notes, i am thinking about getting 4 of these to replace those mid's. From everything i have been able to find you just want to cross them over around 2500hz and under so if you go with a 3way set-up you should be good to go.

http://www.diycable....0b3a7773a1b60af

Though the Exodus are generally a good option, it would require going active.

Share this post


Link to post
Share on other sites

In short, no. Mid-bass frequencies are better in front of you. If you want to play lower upgrade. I have Mach 5 MLIs and they are crossed over at 60hz. I used to have those components and they played down to 80hz for me fine.

For true midbass frequencies, having the speakers located in front of you doesn't really matter. But you would still want them as wide as possible.....under or directly behind the seats are both generally poor options.

I don't see why you shouldn't be able to get performance under 120hz with them unless you are simply pushing them significantly past their output limitations.

Are you playing them at an excessively loud level when they appear to start bottoming out?

I am playing them at full tilt. I used a dd1 to set gains and I'm only pushing 60 watts at them. Believe they are rated for 90 iirc.

Like I said im going to take the door panel off tomorrow and check to make sure that the ccf/mlv hasnt shifted and thats whats making the sound. It seems to only come out of the driver side so that is possibly the problem.

About the exodus. going active wouldnt be a problem. My deck (880prs) is active capable and was actually planning on doing it sometime soon.

Share this post


Link to post
Share on other sites

In short, no. Mid-bass frequencies are better in front of you. If you want to play lower upgrade. I have Mach 5 MLIs and they are crossed over at 60hz. I used to have those components and they played down to 80hz for me fine.

For true midbass frequencies, having the speakers located in front of you doesn't really matter. But you would still want them as wide as possible.....under or directly behind the seats are both generally poor options.

I don't see why you shouldn't be able to get performance under 120hz with them unless you are simply pushing them significantly past their output limitations.

Are you playing them at an excessively loud level when they appear to start bottoming out?

I am playing them at full tilt. I used a dd1 to set gains and I'm only pushing 60 watts at them. Believe they are rated for 90 iirc.

Like I said im going to take the door panel off tomorrow and check to make sure that the ccf/mlv hasnt shifted and thats whats making the sound. It seems to only come out of the driver side so that is possibly the problem.

About the exodus. going active wouldnt be a problem. My deck (880prs) is active capable and was actually planning on doing it sometime soon.

RMS ratings for components are essentially meaningless. It'll vary depending on enclosure and frequency. Sounds like they're being pushed past their limits, I have trouble believing they can't play below 120Hz unless they're being pushed past their limits.

If the Exodus is something you decide to pursue keep in mind it's not a driver well suited to a 2 way with a tweeter as any high excursion driver like that will need to be crossed fairly low. If you wanted to do a 2 way it would be possible to run it with a full ranger on axis, but I don't think it would be "loud".

Share this post


Link to post
Share on other sites

I was looking at going 3 way as a possiblity. Possibly putting a 4in in the a pillars. will have to take out the curtain airbags for that though

Share this post


Link to post
Share on other sites

Ok so scratch the idea of putting this under/behind the seat.

After being inspired by j-roadtatts 12's in his doors I'm going to attempt to put the sa8 v2's in my doors.

Meausred the areas and feel that I can put these in no problem with some modification.

Share this post


Link to post
Share on other sites

you are crazy jes!!!

Share this post


Link to post
Share on other sites

Crazy like a fox....

I think if it's properly executed it will turn out great. Looking forward to watching them get shoehorned into them doors!

Share this post


Link to post
Share on other sites

He's gonna need another car to put those sa-8s in and tow it.

Share this post


Link to post
Share on other sites

I think you could find a lot better drivers for mid bass duty.

Share this post


Link to post
Share on other sites

Ok so atm I have the ia comps and have them set at 120 lpf. If I go lower they start to bottom out.So I was thinking of going to a 3 "way" setup with some of the new sa8 v2's. I thought about trying to make them fit in the door but thats unlikely So my next thought is to either box them under the front seats or......build boxes to place behind the front seats on the floors.Now I'm only wanting these to fill in the 60ish-120ish area so I'm thinking sealed boxes.Would this work or is it just a plan to fail?

Why do you have a component set running at 120 lpf? How do you know this? What processor do you have?

In short, no. Mid-bass frequencies are better in front of you. If you want to play lower upgrade. I have Mach 5 MLIs and they are crossed over at 60hz. I used to have those components and they played down to 80hz for me fine.
For true midbass frequencies, having the speakers located in front of you doesn't really matter. But you would still want them as wide as possible.....under or directly behind the seats are both generally poor options.I don't see why you shouldn't be able to get performance under 120hz with them unless you are simply pushing them significantly past their output limitations. Are you playing them at an excessively loud level when they appear to start bottoming out?

Completely disagree Impious. Midbass freqs should definitely be played by front stage drivers. Your comment on having midbass drivers as wide as possible is contradictory to your previous statement ;) Midbass drivers are best mounted in the doors with proper deadening.

Share this post


Link to post
Share on other sites

ok so after talking to some people and realizing how mad that sa8 idea may have been, I've been thinking about the exodus's.

Now If I was to do this, this would be the hypothetical situation.

Running the anarchy's and a set of 4 inch speakers off of a crescendo 1100.4

Run some tweets off of the kenwood 60x2 I have now.

My head unit is active capable. So would run the tweets off of the 'high" set of rca's.

Then use the set of mid rca's to go to the 1100.4.

Now this is where I have some questions.

Say I low pass the mids at 2.5k and high pass at 80. Now with that signal can I xover at the amp and have the anarchy's at 80-300, then xover the 4" speakers at 300-2.5k? I hope that makes as much sense as it does in my head.

Now for the tweets i'm looking at the vifa's because they seem to be getting great reviews over on diyma.

But I'm a little stumped on the 4" speakers (mind you 4" is not set in stone, whatever I can make work on the dash). So any ideas on those? Budget I'm looking at under a 100 bucks hopefully for both, and the 1100.4 would be putting out 175 watts per side at 4 ohms.

Share this post


Link to post
Share on other sites

ok so after talking to some people and realizing how mad that sa8 idea may have been, I've been thinking about the exodus's.

Now If I was to do this, this would be the hypothetical situation.

Running the anarchy's and a set of 4 inch speakers off of a crescendo 1100.4

Run some tweets off of the kenwood 60x2 I have now.

My head unit is active capable. So would run the tweets off of the 'high" set of rca's.

Then use the set of mid rca's to go to the 1100.4.

Now this is where I have some questions.

Say I low pass the mids at 2.5k and high pass at 80. Now with that signal can I xover at the amp and have the anarchy's at 80-300, then xover the 4" speakers at 300-2.5k? I hope that makes as much sense as it does in my head.

Now for the tweets i'm looking at the vifa's because they seem to be getting great reviews over on diyma.

But I'm a little stumped on the 4" speakers (mind you 4" is not set in stone, whatever I can make work on the dash). So any ideas on those? Budget I'm looking at under a 100 bucks hopefully for both, and the 1100.4 would be putting out 175 watts per side at 4 ohms.

My $.02

Your door install is lacking, switching speakers won't help this. A new install may remedy the problem but I wouldn't bother swapping out the speakers until you can at least determine what was holding them back. I feel like you're undertaking a very large and potentially disappointing project when a small amount of work may prove more fruitful.

About going 4-way active with the pioneer, yes I believe the way you have it listed will work but I'm not familiar with the 1100.4; the 1000c4's LPF only goes up to 250hz not the 300hz you'd need (splitting hairs but it could prove to be a problem).

If you have room in your dash for a 4" speaker I'd heavily consider putting a full range in and using that to cover the majority of your spectrum, properly installed you should be able to cover everything from <1khz to 20khz without issue.

Two full range examples that I have zero experience with:

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=264-847

http://www.madisoundspeakerstore.com/approx-2-fullrange/vifa-ne85w-2.5-fullrange-driver-4-ohm/

Share this post


Link to post
Share on other sites

ok so after talking to some people and realizing how mad that sa8 idea may have been, I've been thinking about the exodus's.

Now If I was to do this, this would be the hypothetical situation.

Running the anarchy's and a set of 4 inch speakers off of a crescendo 1100.4

Run some tweets off of the kenwood 60x2 I have now.

My head unit is active capable. So would run the tweets off of the 'high" set of rca's.

Then use the set of mid rca's to go to the 1100.4.

Now this is where I have some questions.

Say I low pass the mids at 2.5k and high pass at 80. Now with that signal can I xover at the amp and have the anarchy's at 80-300, then xover the 4" speakers at 300-2.5k? I hope that makes as much sense as it does in my head.

Now for the tweets i'm looking at the vifa's because they seem to be getting great reviews over on diyma.

But I'm a little stumped on the 4" speakers (mind you 4" is not set in stone, whatever I can make work on the dash). So any ideas on those? Budget I'm looking at under a 100 bucks hopefully for both, and the 1100.4 would be putting out 175 watts per side at 4 ohms.

How many rca outputs does your headunit have? For going active and crossing over, does it have 2 sets of rcas, or three?

Your thoughts on crossing over the mids are correct (obviously you will be fiddling with the points and slopes though), but you still need to be able to get another "processed" signal for your 4" drivers your planning on using.

Where are you planning on installing the ex-anarchies, doors, kicks? If doors, how much space do you have in terms of mounting depth and area on the door for the speaker?

Depending on the space you have, you may want to consider using a larger midbass driver, and since your planning on doing a three way +sub (which may not be easiest route for going active the first time), you don't have to worry as much about how high the midbass driver needs to play.

-------

I've read of people crossing over their ex-anarchies around 2500hz, in my situation that was too high. Currently I'm crossed around 100hz 18 db slope between subwoofer and ex-anarchies, and ~1900-2000hz 18 db slope between ex-anarchies and tweeters.

I'm not saying these numbers are going to work for you, or well in your car, but just giving an example. I have a notebook filled with over a hundred combinations of slopes and XO points, and that's for a two-way setup. +sub (no brainer) ;)

Share this post


Link to post
Share on other sites

Jes, maybe tone down to a 2-way active setup like Stef seems to be suggesting... I do like the full range idea that vladd mentioned, but you def need to find out the crossover capabilities of the C1100.4 before making that decision as far as an amplifier goes...

I do like the Precision Power amplifiers available recently, they offer bandpass options directly on the amplifier...

p9004.jpg

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×