PDA

View Full Version : Good bass w/o a sub?



WillyG4444
11-09-2005, 12:10 PM
I have a 2002 nissan sentra and stock it comes with a set of 6.5 components up front and 2 6.5 2 ways in the rear. There is also this 6.5 inch sub in the rear deck that is free air. (I dont even know if it does much) My question is will I get good bass response from a 6.5 component set in the front and one in the back (I know I know, only do the fronts, but I'm definetly getting a set for the rear to for the passengers hehe)

I was thinking of getting MB Quart PCE series components or possibly focal polykevlar series.

Also, is there any 6.5 inch sub that I can put in my rear deck free air and still sound decent? I was wondering if the eu700 will do this for me. Thanks a lot for your help!

Intercooler
11-09-2005, 01:52 PM
Believe it or not the factory 6x9's in my Honda pounded pretty good with the Pioneer installed. Still no substitute for a sub though! If you can tolerate not having AS MUCH BASS as a sub I am sure you can do something. Look for something that plays down on the lower end. Can you fit a 8 in there?

Alpineinstaller
11-09-2005, 02:01 PM
get a 6 1/2 bazooka tube its cheap and ok for alittle bass.

bri487
11-09-2005, 02:03 PM
get a 6 1/2 bazooka tube its cheap and ok for alittle bass.

i wouldnt even consider that plan. i have heard many cars with just two sets of components, amped of course, and they sounded **** good. but they are good comps with a good amp and good processing.

b0mbrman
11-09-2005, 02:04 PM
I have a 2002 nissan sentra and stock it comes with a set of 6.5 components up front and 2 6.5 2 ways in the rear. There is also this 6.5 inch sub in the rear deck that is free air. (I dont even know if it does much) My question is will I get good bass response from a 6.5 component set in the front and one in the back (I know I know, only do the fronts, but I'm definetly getting a set for the rear to for the passengers hehe)

I was thinking of getting MB Quart PCE series components or possibly focal polykevlar series.

Also, is there any 6.5 inch sub that I can put in my rear deck free air and still sound decent? I was wondering if the eu700 will do this for me. Thanks a lot for your help!

If you don't care about your rear passengers that much and if you've got the space, you could try a meatier 6.5", low-passed in the low 100's.

Something like this - Link (http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=264-832)

http://www.partsexpress.com/images/264-832m.jpg

BTW, are there any amps anywhere in this setup?

Alpineinstaller
11-09-2005, 02:08 PM
i wouldnt even consider that plan. i have heard many cars with just two sets of components, amped of course, and they sounded **** good. but they are good comps with a good amp and good processing.

I was just saying that because he didnt state a budget, high-end, low-end, etc... it was just a thought for some CHEAP thump.

WillyG4444
11-09-2005, 05:57 PM
Well, I'll definetly power the components with an amp. I'm confused about that though. Do I need a 4 channel for one set of components? So if I get two sets I'd need two 4 channels? Or does 1 tweeter and one midbass = 1 channel cause of the crossover? I dont get it. Are the focal polykevlars worth getting over the mb quart PCEs? Or are the utopias and the K2s the only worthy focal products that deliver clear highgs and real good midbass? And how would that 6.5 inch sub compare to an 6.5 inch eu700? Power specs are the same. Thanks again for the replies.

Prowler573
11-09-2005, 06:02 PM
You won't need a 4-channel amp for a single set of components.

If you do end up with a two component-set setup (one set front, one set rear - and don't let the haters derail you from wanting that rear fill....I have two sets of components going and think it sounds juuuuust fine! :) ) then a single 4-channel amp will serve satisfactorily.

One midrange driver + one tweeter = a single amplifier channel needed to push them.

As for your inquiries about the brand comparisons I haven't any experience with any of those models so I cannot directly comment.

Intercooler
11-09-2005, 06:34 PM
If you don't care about your rear passengers that much and if you've got the space, you could try a meatier 6.5", low-passed in the low 100's.

Something like this - Link (http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=264-832)

http://www.partsexpress.com/images/264-832m.jpg

BTW, are there any amps anywhere in this setup?
That looks neat! Now you have me thinking about those for my truck! What size sealed box would they need? Anyone know what THE HARDEST HITTING bass 6.5 on the planet is?

bri487
11-09-2005, 07:04 PM
also for the best possible sound with components, i would highle reccomend some form of time alignment. especially if you are going to run rear speakers.

WillyG4444
11-09-2005, 07:06 PM
Would that woofer work free air into my rear deck? I don't want it to sound like crap but how would I make a box for it? Or should I just put it in my trunk with a box?

audioholic
11-09-2005, 07:49 PM
Anyone know what THE HARDEST HITTING bass 6.5 on the planet is?Probably the RE xxx or Adire Extremis take that crown, as I know of no other current 6.5 with 13mm xmax or more. Im installing some xxx's in my 4x4 right now that I plan on highpassing around 50hz, with no subwoofer installed. Im quite curious to see how it works out. :)

Intercooler
11-09-2005, 08:27 PM
Probably the RE xxx or Adire Extremis take that crown, as I know of no other current 6.5 with 13mm xmax or more. Im installing some xxx's in my 4x4 right now that I plan on highpassing around 50hz, with no subwoofer installed. Im quite curious to see how it works out. :)
With the XXX they still don't have a X-over unless you come up with your own do they? I am grey on the XXX and how you would run it.

bikejunkie223
11-09-2005, 09:01 PM
sound deadening will make a huge difference too, right now I alternate my crossover point for my Dls Up6's between 63hz and 50hz depending on what I'm listeneing to, and they sound so good in well sealed/deadened doors I almost don't need a sub...but I got an Iridium 10 anyway, and it owns.

audioholic
11-09-2005, 09:13 PM
With the XXX they still don't have a X-over unless you come up with your own do they? I am grey on the XXX and how you would run it.
No crossover. They've still not released a full xxx comp set including crossover and tweetr, just the raw mid. Id suggest running it with an active xo network in most situations.

cellularjedi
11-10-2005, 11:12 AM
...as I know of no other current 6.5 with 13mm xmax or more...

elemental EU-700, 13mm also

audioholic
11-10-2005, 12:08 PM
elemental EU-700, 13mm also
Hasn't been DUMAX verified like the xxx/extremis has. And from what Im hearing, that spec is exagerated. *shrug*

squeak9798
11-10-2005, 12:44 PM
Hasn't been DUMAX verified like the xxx/extremis has. And from what Im hearing, that spec is exagerated. *shrug*

In npdang's Klippel analysis, the Extremis only managed 8mm Xmax IIRC.

squeak9798
11-10-2005, 12:45 PM
Tang Band has a 5.25" driver with a supposed 9.25mm Xmax.

Interested to so how that truly performs.

audioholic
11-10-2005, 12:55 PM
In npdang's Klippel analysis, the Extremis only managed 8mm Xmax IIRC.Oh wow news to me. I know the xxx has been verified at 13mm, I guess I assumed the Extremis had been too. My bad.

Anyone confirm the EU-700 xmax? Know if its been verified?

squeak9798
11-10-2005, 01:57 PM
Oh wow news to me. I know the xxx has been verified at 13mm, I guess I assumed the Extremis had been too. My bad.

http://www.diymobileaudio.com/forum/showthread.php?t=664

There's the test, incase you haven't seen it yet.

audioholic
11-10-2005, 02:42 PM
http://www.diymobileaudio.com/forum/showthread.php?t=664

There's the test, incase you haven't seen it yet.
Nope, I hadn't seen it, now I have. :D Thanks. I didn't realize the Extremis had an xmech of 24mm... wow. lol

bigbangtheory
11-11-2005, 02:46 AM
I heard the new 8" full range speaker from memphis the other day and was very nice indeed. You could try and fit that in the sub spot. I would recommend the mb quart pce's. I used to have a set and the midbass was very good. Good luck!

WillyG4444
11-11-2005, 09:57 AM
Thanks for all of your replies they really helped. I haven't heard an answer to this one question though. If I put a sub into the rear deck (so it's sticking out when you open the trunk) will it sound ok because its not in an enclosure? I'm trying to minimize the option of having a sub enclosure in my trunk and I have never heard a free air sub. I don't want the sound quality to ****. Thanks again.

audioholic
11-11-2005, 12:30 PM
Thanks for all of your replies they really helped. I haven't heard an answer to this one question though. If I put a sub into the rear deck (so it's sticking out when you open the trunk) will it sound ok because its not in an enclosure? I'm trying to minimize the option of having a sub enclosure in my trunk and I have never heard a free air sub. I don't want the sound quality to ****. Thanks again.Free-air (Infinite Baffle) is arguably the best 'enclosure type' to go with for a true SQ system. But only if done correctly. The front and rear waves must be completely sealed off from each other.

UndercoverPunk
11-11-2005, 12:38 PM
my extremi offer up more than enough bass for most people to be more than satisfied all around. I want more.... porting eventually. Most likely when I get my elect up to par for a 20.1 on the mags. So it'll be a few months.

But the extremis would be a very good bet for your rears free air, just becareful how many watts you throw at them so they don't bottom out....

WillyG4444
11-11-2005, 11:09 PM
Free-air (Infinite Baffle) is arguably the best 'enclosure type' to go with for a true SQ system. But only if done correctly. The front and rear waves must be completely sealed off from each other.


What do you mean by the front and rear waves must be completely sealed off from each other? Sorry, I don't much about the technical side of speakers and placement. If you could enlighten me id appreciate it thanks =).

Apparently I can't quote =/

audioholic
11-12-2005, 01:29 AM
Free-air (Infinite Baffle) is arguably the best 'enclosure type' to go with for a true SQ system. But only if done correctly. The front and rear waves must be completely sealed off from each other.

What do you mean by the front and rear waves must be completely sealed off from each other? Sorry, I don't much about the technical side of speakers and placement. If you could enlighten me id appreciate it thanks =).

Apparently I can't quote =/A speaker's cone moves in and out. As it does this, it emits sound waves from the front of the cone (generally what we see/hear) and from the rear of the cone. For xample, its those rear waves that exit the port in a ported enclosure. Now that we've defined the difference between the front and back waves, my original comment becomes more clear. A speaker in an infinite baffle situation must not allow its front and rear waves in come in contact with each other. To do so would lead to wave interfeance problems (cancellation and reinforcement). Complete seperation of the front and rear waves is one of the very characteristics that define an 'infinite baffle' setup. Compromising this means not having a true IB. Hope that clears it up for you. If not, let me know.

To quote someone you hit the quote button at the bottom of their reply, rather than hitting the post reply button at the bottom of the page. ;)

hiloracerboy84
11-15-2005, 05:55 AM
dont know but ive heard those boston acoustics comps that are like 1grand a pair amped with 150watts and **** i couldnt believe it. they played late night tip well beyond my expectations and at a volume more than decent considering their size.