imma noob... advise on tweeters?

[dragonrage 10+ year member]

If you're unsure about something I said, ask and it shall be explained. Explanation is not my strong point so "help me help you."

 

[Mr.meyhem 10+ year member]

i look at the type r's and it says the db sensitivity is at 87 db..

Alpine SPR-17S - 6.75" Component Speakers | Pacific Stereo

so id need a tweeter that has a low db sensitivity? and also run at or less that 50w.. would 90 db be close enough? because those horn tweeters and such are all up by 90db sensativity and up. thats what I've seen. and i don't mind the tweeter being a little louder than it was. but if the tweeter is using less power than it normally would, does that mean i could somehow make the mid louder? or is it already at the peak power it can handle?

 

[Mr.meyhem 10+ year member]

Eminence PSD:2002S-8 1" Titanium Driver 8 Ohm 1-3/8"-18 290-446 is this what ur talking about?

 

[audioholic 5,000+ posts]

Eminence PSD:2002S-8 1" Titanium Driver 8 Ohm 1-3/8"-18 290-446 is this what ur talking about?

That is the actual compression driver, minus the horn body, yes.

 

[dragonrage 10+ year member]

Right. You match that to one of these 1 INCH HORNS from Parts Express ship same day and come with 45 day money back guarantee. Free Shipping Available. Order free 10,000 product catalog.

People who do these HLCDs often use the large horns and mount them under the dash. Have you considered how you would mount these?

As for the sensitivity matching issue, ideally you would want an active crossover for this. It would be more difficult if you stick with the Alpine crossover because putting the horn in the circuit could actually modify the sound coming out of the woofer depending on how the crossover is made. It would also need what's called an L-pad which is a passive component meant to lower the volume without modifying the impedance.

Like I said before, integrating HLCDs is a lot more complex.

 

[Mr.meyhem 10+ year member]

so i put this on it??? Selenium HM17-25 1" Bi-Radial Horn 60x40 1-3/8"-18 TPI 264-308

and how do i mount it?

 

[audioholic 5,000+ posts]

Right. You match that to one of these 1 INCH HORNS from Parts Express ship same day and come with 45 day money back guarantee. Free Shipping Available. Order free 10,000 product catalog.
People who do these HLCDs often use the large horns and mount them under the dash. Have you considered how you would mount these?

As for the sensitivity matching issue, ideally you would want an active crossover for this. It would be more difficult if you stick with the Alpine crossover because putting the horn in the circuit could actually modify the sound coming out of the woofer depending on how the crossover is made. It would also need what's called an L-pad which is a passive component meant to lower the volume without modifying the impedance.

Like I said before, integrating HLCDs is a lot more complex.

You are correct. I guess I lost track of the topic somewhere along the way, I would not recommend running a hlcd in a passive comp setup (unless designed for them). To make them truly shine, they really need their own channels of amplification, xover network, and EQ'ing.

Good catch, thanks.

 

[Mr.meyhem 10+ year member]

fml lol... so what should / can i use with the current crossover and mid drivers that i have? i want loud, but sound quality is also important to me. i don't want to be cutting up my car. so I'm thinking maybe going with a pod... haven't been able to find very many tho. i might cut out a hole for them on the panel running along the side of my windshield.

 

[dragonrage 10+ year member]

FYI, that's your "A Pillar." A lot of people do put tweeters there. I personally prefer to put them on the inside of where the side mirrors are e.g. what this guy did http://www.caraudio.com/forums/enclosure-design-construction-help/178885-focus-tweeter-pods-worklog-pics-2.html -- but it is common and fine to do it in the A-pillar. I think it might actually be more common to do it in the A pillar.

Is there a part number on your tweeter that you can give us?

Edit to add: In general, for a decently priced tweeter for the car, this is what I recommend: http://www.madisoundspeakerstore.com/hard-dome-tweeter/seas-prestige-27tafnc/g-h1397-1-aluminum-dome-tweeter/ - it should integrate reasonably well with your Alpine crossover, but it's still a crossover designed for the tweeter that it came with, so it might not integrate perfectly. If it has a tweeter level adjustment then that will definitely be helpful. Note: If you do order this, know that it is NOT for a pair. You'd have to order two of them.

 

[Mr.meyhem 10+ year member]

european cars lol.. yeah i might do that. its actually a really good idea. just cut out the hole ant mount it??? lol

 

[Mr.meyhem 10+ year member]

so if i get a different cross over with a tweeter. will my mid be easier to adjust to it? or is it just how the whole system is set up?

and still nobody has answered my q on the 0 db -3 db -6db and so on setting on my crossovers question.

 

[dragonrage 10+ year member]

Well, no, most people build up something out of fiberglass. Or sometimes you can buy something. Sometimes people do cut a hole in a door panel or something to mount a tweeter. It's all up to you. It's better to angle the tweeters a bit so that they are around the side mirror or even A pillar areas and facing approximately the area in between the two front seats. (The EXACT ideal aim varies a bit depending on the tweeter you use and the car you have... but what I just said should generally work pretty well... if you're willing to put that kind of work into it.)

If you want to cut a hole near the tops of your door panels (or some other panel that has room for it and which will have reasonable aim) and just flush mount a tweeter... hey, it still beats most stock tweeter mounting locations. A pillars and side mirror inside trim probably won't have enough room to mount a tweeter without building them up somehow, be it fiberglass or something else.

 

[Mr.meyhem 10+ year member]

assuming these r poop? Pioneer TS T15 90 db sensitivity 40 w rms and they r cheap so they will prby sound cheap too...

 

[Mr.meyhem 10+ year member]

or this Dayton Audio ND28F-6 1-1/8" Neodymium Dome Tweeter 88.7 db sensitivity. thats the closest to my 87 as i can find

 

[Mr.meyhem 10+ year member]

yeah id be interested in trying to learn how to fiberglass something. i could prbly make a custom and mount it up on the dash. maybe just Velcro it on.