any car audio experts out there??

rakapur
12-22-2008, 12:08 PM
i have a small 2 channel amp and 2- 8" subs that are both 8 ohms, i run them 1 sub per a channel, if i wire them down to 4 ohms and then run them on 1 channel can i get some 6x9 speakers and put them in an enclosure running them off the second channel??

my amp only puts out 65 watts rms and the speakers im looking at are rated for 80 watt rms

shovelhd
12-22-2008, 12:50 PM
It depends if your amp can handle a 4 ohm load. Most can. So now you have a sub running off of one channel. You will need to cross the inputs over for low pass and combine two channels into one.

For the other channel, you want to run two 6x9 speakers using one channel. If they are standard 6x9 auto speakers, they are 4 ohm. Running them in parallel shows two ohms. Make sure your amp can handle it. If not, wire them in parallel, which will show 8 ohms. That should be safe. Now you have to cross these over using a high pass, and combine two channels into one.

6x9's, man, I had them in my 1971 Camaro. Old school.

Mr Bigs
12-22-2008, 01:53 PM
i have a small 2 channel amp and 2- 8" subs that are both 8 ohms, i run them 1 sub per a channel, if i wire them down to 4 ohms and then run them on 1 channel can i get some 6x9 speakers and put them in an enclosure running them off the second channel??

my amp only puts out 65 watts rms and the speakers im looking at are rated for 80 watt rmsHonestly what you wan't to do is kinda bootleg. 2 8 ohm subs paralleled will give you 4 ohms that should be left on the amp by itself if it's 4 ohmbridgeable. You probably can run the 6x9's off of whatever headunit you have. The method you mentioned earlier will work buy you lose stereo to the 6x9's. A quality pair of 6x9's can come closely to rivaling a pair of 8 inch subs if powered correctly. The subs you have are they for automotive applications or house speakers ?

rakapur
12-22-2008, 02:17 PM
the main reason i wanna do this is the subs i have drown out the speakers so the words from the songs a really low

the speakers are 4-way so that should make the music sound better

and if i wire the speakers in parallel that would make it 2 ohms wouldnt it

hofffam
12-22-2008, 02:33 PM
the speakers are 4-way so that should make the music sound better

Almost NEVER true. A 4-way 6x9 is just an awful speaker. They really belong sitting on the back tray of a Trans Am.

If your subs drown out the words in the songs your system is tuned or adjusted badly. Fix that by turning down the subs! Or adjust the volume level of the amp feeding your door speakers.

pro_olds67
12-23-2008, 01:11 PM
i have a small 2 channel amp and 2- 8" subs that are both 8 ohms, i run them 1 sub per a channel, if i wire them down to 4 ohms and then run them on 1 channel can i get some 6x9 speakers and put them in an enclosure running them off the second channel??

my amp only puts out 65 watts rms and the speakers im looking at are rated for 80 watt rms

This would not work for the following reasons...

1) You need to run certain frequencies to each speaker, being a sub, mid range, or high range speaker. Unless your amp has the capability to run the lower frequencies to your sub on one channel and higher on the other you will shorten the life of you speakers running them wide open.

2) bridging your amp to run 4 ohms would require to run both channels in mono, you will not free up one channel. (One positive wire on one channel and one negetive wire on the other)

You would be better off running another amp separate from your subs to the additional speakers.

Mr Bigs
12-23-2008, 07:06 PM
There is the option of cap and coil but I strongly recommend against this.

rakapur
12-24-2008, 08:58 AM
if i go and bring the subs down to 4 ohms and put them on channel 1 and take the speakers and put them on channel 2, it wouldn't hurt the amp right?? so the worst that could happen is the speakers blow? if thats the case i might as well just spend the $53 on the speakers and try them out.

please tell me if anything i said was wrong


i really don't wanna run it off the headunit just cause these speakers sound 100x better hooked to an amp then the headunit

http://www.crutchfield.com/p_113KFC697E/Kenwood-KFC-6972ie.html?tp=91

these are the ones im getting but im getting them off ebay for $53

hofffam
12-24-2008, 12:43 PM
Where are you planning to put those 6 x 9s?

You can ignore my earlier post - but 4 way coaxes are just stupid. You might as well take that $53 out of your wallet and throw it in the wind. Or give it to the Salvation Army. I simply cannot imagine any scenario where those 6 x 9s will improve the sound in your truck. You will waste money to buy them, time to install them, and time to throw them away later.

2way coax > 3way coax >>>> 4way coax

Why not spend some qaulity time and simply tune your system? Properly adjust the levels of the speakers and amps you have.

I'm sorry if I sound harsh but you are not doing anything intelligent. Just because those speakers seem like a bargain doesn't mean they will help the sound.

BigAl205
12-24-2008, 01:48 PM
What kind of amp do you have? Some amps are capable of running tri-mode which would allow you to run the 6x9's in stereo and run the subs in a bridged configuration, however you will have to put a passive crossover inline with the subs. Running the setup the way you are talking will have the subs paralleled to 4ohms and the 6x9's paralleled to 2 ohms. Both your subs and 6x9's will only be running in mono and the different impedences on the different channels may tear up the amp.

rakapur
12-24-2008, 02:14 PM
Where are you planning to put those 6 x 9s?

You can ignore my earlier post - but 4 way coaxes are just stupid. You might as well take that $53 out of your wallet and throw it in the wind. Or give it to the Salvation Army. I simply cannot imagine any scenario where those 6 x 9s will improve the sound in your truck. You will waste money to buy them, time to install them, and time to throw them away later.

2way coax > 3way coax >>>> 4way coax

Why not spend some qaulity time and simply tune your system? Properly adjust the levels of the speakers and amps you have.

I'm sorry if I sound harsh but you are not doing anything intelligent. Just because those speakers seem like a bargain doesn't mean they will help the sound.

i know what your saying about tuning the amp, but i like the bass i have now and the bass is not even worth have the subs in the truck if i retune the amp
i am not buy the speakers because they are a bargain, i have heard these speakers before on an amp and they sounded really good
what do you mean "those 6x9s" are there any different kind that will help?
What kind of amp do you have? Some amps are capable of running tri-mode which would allow you to run the 6x9's in stereo and run the subs in a bridged configuration, however you will have to put a passive crossover inline with the subs. Running the setup the way you are talking will have the subs paralleled to 4ohms and the 6x9's paralleled to 2 ohms. Both your subs and 6x9's will only be running in mono and the different impedences on the different channels may tear up the amp.

so your saying that theres a chance i might **** up my amp :(

ok i know the pic is bad but if i wire it like this wouldnt the speakers stay 4 ohms?

rakapur
12-24-2008, 02:20 PM
or if i wire one with each sub would that make them 6 ohms each??

BigAl205
12-24-2008, 06:55 PM
or if i wire one with each sub would that make them 6 ohms each??
LOL...nice Etch-a-sketch pic. If those speakers are 4ohms, then wiring them in parallel (+ to +, - to -) will make the amp see 2ohms. But you are correct, wiring a 4ohm speaker in parallel with an 8ohm speaker will produce approximately 6ohms. You will, however, either be running the subs full-range or running the 6x9's low-pass if you turn on the amp's crossover. The only way to run the speakers full-range and the sub low-pass is to use a passive crossover before the subs.

rakapur
12-28-2008, 06:15 PM
ok if i get a 4 channel amp can i bridge the first 2 channels and hook up the sub in parallel, then hook the speakers to channel 3 and 4

BigAl205
12-28-2008, 06:38 PM
ok if i get a 4 channel amp can i bridge the first 2 channels and hook up the sub in parallel, then hook the speakers to channel 3 and 4
On most amps, yes you can. This is the best idea. ;)

rakapur
01-02-2009, 06:27 PM
i got all my stuff i decided to go with a different brand speaker "blaupunkt" i also went with a blaupunkt amp, i hope i can install it tomorrow
these are the speakers in there enclosure
http://i335.photobucket.com/albums/m462/rakapur/Ridgeline/100_0325.jpg
this is the amp, i had to get some RCA Y adapters from radio shack $4,49 each
http://i335.photobucket.com/albums/m462/rakapur/Ridgeline/100_0326.jpg

shovelhd
01-02-2009, 08:30 PM
lemme guess, ebay

rakapur
01-02-2009, 08:42 PM
speakers: amazon.com
amp: ebay (new)
speaker box: ebay

i heard the speakers and they sounded good, dont they use these speakers in Mercedes and Bentley??

sprite
01-02-2009, 10:42 PM
Rakapur
Reading over your posts I must admit that I am very confused and a little concerned about how you are setting up your system. From what I can tell, you have:
(2) 8" kenwood subs in tube enclosures
AP400 Profile amp
(2) 6x9 4way blaupunkt speakers in their own enclosures
(4) 3-way kenwood speakers mounted in the doors
all powered by a 4x60watt blaupunkt

is this correct?

Where do you have the 6x9 speakers mounted? Why did you add those (instead of relying on the door speakers)?
I assume the two 8" kenwood subs are under the rear seat?
where are your amps located?

Regarding your comment about blaupunkt being used in Mercedes vehicles, yes they have used that brand of speakers, but there is much more to it than just the brand name. brands (like blaupunkt) can have several different lines of speaker, from cheap to expensive, with quality to match. But that's not the full story; speaker placement matters (a lot). power matters (all the speakers need to have a proportional amount of power) and having your system properly tuned REALLY matters. When I first added my sub (a single 10") I hated the way it sounded, but after adjustments I went from hate to love.

Chuck
01-02-2009, 10:54 PM
lemme guess, ebay

Hehehe

I can smell the overheated PCB's from here! :)

rakapur
01-03-2009, 06:31 AM
Rakapur
Reading over your posts I must admit that I am very confused and a little concerned about how you are setting up your system. From what I can tell, you have:
(2) 8" kenwood subs in tube enclosures
AP400 Profile amp
(2) 6x9 4way blaupunkt speakers in their own enclosures
(4) 3-way kenwood speakers mounted in the doors
all powered by a 4x60watt blaupunkt

is this correct?

Where do you have the 6x9 speakers mounted? Why did you add those (instead of relying on the door speakers)?
I assume the two 8" kenwood subs are under the rear seat?
where are your amps located?


i have
(2) 8" kicker subs in tube enclosures (8 ohms)
(2) 3-way blaupunkt speakers in there own enclosure
(4) 3-way kenwoods in the doors

yes i do have a Profile AP400 but im replacing that with the Blaupunkt 4 channel amp

everythings going to be under the rear seat just loke it is set up now, i already have the subs and amp, im just replacing the amp and adding more speakers


im adding more speakers cause the subs drown out the speakers, and adding 2 6X9's powered by an amp will help (plus give me more bass), the new amp i have has "Flat" (full range), "low-pass", and "high pass" so i put the subs on low-pass & the speakers on full range

shovelhd
01-03-2009, 07:07 AM
Well, it should be loud.

hofffam
01-03-2009, 08:07 AM
im adding more speakers cause the subs drown out the speakers, and adding 2 6X9's powered by an amp will help (plus give me more bass),

Rakapur - I will say your plan is at least interesting. But it is a poor plan.

I can't help but be critical. You complain about too much bass from your subs. So you add /b]more[/b] speakers to fix it. And you also say the 6x9s will give you more bass - which you have too much of already.

Those 8 inch tubes probably don't have a lot of true deep bass - but they have a lot of mid-bass.

Instead of wasting all this money and interior space on 6x9s you should sell the tubes, buy a dual 10 underseat sub box, and simply tune your system properly. But instead you think more is the answer.

I fully expect you to come back here soon and tell us how good it sounds. I hope it sounds good to you. :confused:

Chefelvis
01-03-2009, 10:12 AM
I would have to agree with Hofffam here. Additionally, adding as many of the cheapest speakers you can find is not the way to audio paradise.
Rakapur, I would do some studying of what others have done with their systems. Then after lots of research, find a good local shop to work with. There is a good book called the stereo cookbook that you might like. PEACE... chefelvis:D

hofffam
01-03-2009, 12:57 PM
This thing of just adding speakers reminds me of the old console stereo days when they used to advertise "12 speakers" - the cabinet was full of odd sizes of paper cone speakers with alnico magnets. The cabinets also had an open back, basket weave grill cloth, etc.

And they sounded like crap....