baba- I was wondering which hex series your talking about, the older ones made by eaton or the new ones, with the silver cone. I have recently installed the hex 5.5 with the silk dome tweeters in my car, there the eaton ones that look like they were made with carbon fiber, and I think they sound fantastic, I can hear everything clearly to the point where I can hear the lead guitarist from metalica's finger sliding across the cords. Ive heard the new Hex's suck thats why I opted to go find some old ones, Im also in the process of getting my hex 6.5" speakers put in the rear doors ( since they wont fit up front ). All this is run by a PPI PCX-440, and is currently running through the srock deck, I will be replacing the stock deck pretty soon with a premeir deh-740mp since I want MP3 compatibility. I just want your thoughts on this setup.

oh Im also going to be running 2 12" alumapro alchemy subs with a PPI PCX-1250 briged to 2 ohm, and Im cutting my rear deck 6" on each side and Im sealing off the trunk so I would have a hatchback effect

 

Just for the record. Although I am an ID fan, I'd go with Illusion Audio HLCH's. I had a chance to compare them side by side last week. Illusion Audio ones win.

 

"Although I am an ID fan, I'd go with Illusion Audio HLCH's"

They also cost twice as much and are harder to find, but that's a pretty strong statement considering how into ID you are. Kind of like seeing Dan Wiggins recommending the DD9515's over his Brahma for an SPL application, even though they've been putting up similar numbers with better SQ...

"- I was wondering which hex series your talking about, the older ones made by eaton or the new ones, with the silver cone."

Chinese ones, definitely nothing against Eton's drivers. Pre 99' Hexes aren't exactly in high demand, but you could sell those things very quickly and with a high resale value.

Percy-
The ID CD1Pro's are 103db's I believe. The site gives two numbers (106 and 101), so I usually just tross out 103, though I haven't done any tests or anything. I had some doubts about your info on the Dyns and had a convo about it with Warbleed. Watch out, he's on his way and he's pissed. But thanks for understanding my hard times, I really appreciate the fact that you remembered...

 

There is nothing similar in how ID horns and Illusion horns sound. There is no such thing as similar sound...it is either one or another.

Until I see Brahma 15 hit 170 db's DD wins in SPL.

 

OK, well War doesn't feel like posting or getting too deep into it, but here's what I got from the convo...

The first thing that came to mind was the fact that magnets don't have anything to do with a gap height. One single magnet can cover the necessary gap height, though this was just a brief part of the convo.

He also told me I was incorrect on why Dyn's are innefficient. I assumed it was because of the high Mms, but he told me that Mms has little to do with efficiency. He claims that the Dyn's are innefficient because of a weak motor. I never bothered to check/compare the BL's of Dyn's and other speakers, never even crossed my mind that this would be the reason that they're inneficient. He also brought up Qts as to being why they are inneficient (which at looking through a bunch of T/S formula's, DOES involve Mms).

 

Bababooey,

Well, if Warbleed feels like bringing out the heavy artillery, so will I. There's a person on rec.audio.car named Mike Kim...and he's one hell of a specialist. He's one of the few that will remember Qts and other specs just off the top of his head for pretty much any speaker. He's like I am with op amps and electronics...only more in depth. (Is that possible?) Mike is a very high end digital guru with the math, schooling, theory and practical experience to back him up. But, that's just in case "war" comes along!

103db 1w/1m...holy smokes that's high! Go deaf on 1 watt! Still, 88db at 1w/1m isn't too shabby. Plenty for me and I'm usually listening to music at less than 1 watt per channel.

Hope everything else is going well...

Percy

 

That doesn't prove anything, but I honestly don't even know what we're debating anymore. All I've gotten out of this is why the Dyn's are inneficient, and it turns out to be for a reason completely different than what I had thought.

Those horns should be plenty loud though, I'm looking forward to running them w/ about 45 watts a piece, but I've got to get a damn truck first. As originally planned w/ the Lex, I'll have the CD1Pro's with some DD6.5's, all powered by about 850 watts total. More than I'll be sending my sub, but that's the way I like it. Really Percy, you should give the DD's a shot. My guess is that you've got the $150 bucks to have a pair of the 6.5W's shipped to your house, and several competitors have simply said that they're best described as Dyn's with more powerhandling. Much cheaper, too. Maybe you'll be converted?

 

Bababooey,

DD's website?

As for the efficiency thing...I guess it all depends on what you're using. If you're used to the 103db 1w/1m of the HLCD's, then the Dyns would be terribly unefficient compared with them! Now if you're used to the Inifnity Epsilon or Beta home speakers...they're rated at 86db 1w/1m. Takes a bit to drive them too due to their impedance. But most of the speakers I've seen fall in the high 80's to low 90's for 1w/1m.

The Q series (mbq) aren't very good at efficiency either. Something like 86 to 87db 1w/1m. But then again, nothing can compare to the high numbers of the HLCD's.

Percy

 

www.ddaudio.com

They've pretty much been known for their SPL woofers, but the midbasses have been growing in popularity over the past six months.

Obviously no midbass will compete with horns efficiency wise unless it's coil was entirely in the gap (wow, think of that SPL output ). That's why I'm going to send the DD's about 360 watts each. May have to do some gain matching. With some half-assed math I got a 3db advantage for the horns, but it may be more as I don't know when power compression becomes a factor for the DD's. I've also gotten some mixed opinions from well knowed SQ competitors on how to set this up, one recommending the obvious bandpass of the DD's (LP'd ~1100hz) and letting the horns get above that, and another saying simply to HP the horns and let the DD's rolloff naturally (~3500hz). Gonna see how each setup sounds, but once again, I need a damn vehicle first... hopefully by the end of summer.

BTW, if you call DD up, I believe you can get those mids for cheaper than the listed price (I've read as low as $145 shipped for the pair). But even though the company doesn't exactly "lack" in customer service, they take their time in sending the product to you. Expect about three weeks, it varies. If you do a comparison, don't get biased on us . If I can find someone local with Dyn's, I may just get the DD mids anyway to compare them. $150 won't exactly set me far back on purchasing a $10-$15K vehicle...

 

ok guys. there has been alot of opinions goin around which is good. it is definitly helping me out. i got another question. how are earthquakes components sets the 6'' CS6. competetion series i think. reason why im asking is bc my friend is selling his set. and he also had mb quarts as rear fill. Anyone hear of earthquakes esp as component sets. thanks. -here are the few little stats i can find on them.

Two 6" Midranges, with patented Fiber Impregnated cones and butyl rubber surrounds.
- Two 1" Neodymium dome tweeters, equipped with polyswitches for protection.
- Two crossover networks: 18dB/Oct. high-pass @ 5kHz. -- 12dB/Oct. low-pass @ 5kHz.