sound system help

[Adidas]

Alright so recently i got a 12" amp, 4 channel amp & splits in the front,
Since my pioneer head unit didn't have an AUX In i went to autobarn to buy another HU & the fella there told me that the head unit i was buying is only a 2-channel but it'd be fine because i can just chuck in 2 rca splits..
so on i end up doing this -
My question & help needed is that before when i had the pioneer 4ch HU in the bass was really loud and thumping louder than the front speakers.
Now that I've got this 2ch HU with split rca's in, my front speakers go loud and sub works but the sub doesn't seem to be going as loud as it use too. >.
Why is this? have i just blown $140 on something that isn't what i want?

Thanks

[db_notso]

if you have a a battery going to one bulb its brighter than going to two bulbs
because the bulbs share the power

similar thing would be applying here
but first try playing with your settings on the new HU like look for low pass filter or a hz setting....
maybe its just not set up yet
if the headunit you bought is the same amount of power output as your old one but now its goin to split rca's
(2 into four i gather) there will be a small decrease in output sound....

if you want try unplugging rear speakers or whatever so the sub amp has only one connection to the HU like your old one and see if it is just a splitting of power issue.

[Adidas]

if you have a a battery going to one bulb its brighter than going to two bulbs
because the bulbs share the power

similar thing would be applying here
but first try playing with your settings on the new HU like look for low pass filter or a hz setting....
maybe its just not set up yet
if the headunit you bought is the same amount of power output as your old one but now its goin to split rca's
(2 into four i gather) there will be a small decrease in output sound....

Thanks for the reply, the weird thing when i bought it was when i went through the settings there was NO hz settings only stuff like dbb, bass -7 to +7 , fade, & the other thing.. , i've got it on +7 bass, thinking of going back to the pioneer unit and try and sell my new one for $50. With the less power coming out, shouldn't that be fine with the subwoofer since the amp is powering it? - I don't know much about this stuff yet so correct me thanks.

[db_notso]

amps sont like sharing rca outs from the back of the HU i've found recently
it sounds like there isnt a sub out rca set on your stereo, only front back rca out(normal speakers)

i just changed my stereo as the flip out dvd didnt impress the blue fellas,
got a sony HU 230 bucks and its louder than the clarion i had.... as it has sub out (rca left right) and front and rear rca out(4 plugs) so for a bit more i had full control of range and volume on each channel/speaker...

[Adidas]

amps sont like sharing rca outs from the back of the HU i've found recently
it sounds like there isnt a sub out rca set on your stereo, only front back rca out(normal speakers)

The set isnt actually ON the unit it's through the wiring - there's a white cable and a red cable where you plug in the rca's, I've put two rca splits (one on each cable) & have connected the black with the black and the red with the red on both of them, is this right? thanks.

[db_notso]

but the wiring its on is attached to the back of your HU yeah?
if you still have the box and that from your new one go and look for the wiring diagram
it will show you the best way for that stereo...

anyway if you had a 4-channel out stereo before and now you have a 2-channel out stereo (im just talking your rca connections coming from the stereo) and you have all your speakers plugged in, then you would have rca splitters on one

so 2 come out of the stereo going into 6 ? (channels/speakers e.g. lf, rf, lr, rr, subL, subR)

2 for sub AND 2 into 4 by a splitter to your normal speakers

is this correct?

[Adidas]

but the wiring its on is attached to the back of your HU yeah?
if you still have the box and that from your new one go and look for the wiring diagram
it will show you the best way for that stereo...

anyway if you had a 4-channel out stereo before and now you have a 2-channel out stereo (im just talking your rca connections coming from the stereo) and you have all your speakers plugged in, then you would have rca splitters on one

so 2 come out of the stereo going into 6 ? (channels/speakers e.g. lf, rf, lr, rr, subL, subR)

2 for sub AND 2 into 4 by a splitter to your normal speakers

is this correct?

Not quite sure on what your saying (I'm new to this ), but the amp is powering the sub and the 2 speakers in the front, on the new head unit i've plugged in one rca split for each cable, as it's only got two cables - two splits. There's 2 dark blue kinda transparent rca cables & two light blue rca cables right,
So i have plugged the black dark blue with the black on the split & red light blue with the red, so one of the light blue & dark blue is going into the split & same with the other split.
I'm a bit confused with what i'm saying atm haha so sorry about that mate.

[db_notso]

right soz so you used to have 2 sets of rcas going from your stereo to your amp
now you only have two? and two of those two rca leads arent plugged into anything

[db_notso]

and bump!~~!

[Adidas]

right soz so you used to have 2 sets of rcas going from your stereo to your amp
now you only have two? and two of those two rca leads arent plugged into anything

no no sorry, I've got two rca cables, there's 2 outs coming off each (1 black, 1 red on each) i've got 1 red 1 black going into the first split so the black off the first rca and the red off the second rca is going into the first split, and the other way around with the 2nd split.

[db_notso]

so did you use splitters (one plug into two) with your old stereo?

[Adidas]

so did you use splitters (one plug into two) with your old stereo?

I'm not quite sure as when i got my system put in i paid autobarn to do it, my old stereo was 4 channel though so it wouldn't need the splitters as both rca cables (4 ends) went straight into the 4 ports that they go in- by the looks of the back of the pioneer head unit.

[db_notso]

yep so your old one had a place to plug in each rca plug
and now you have to ADD plugs to the back of your stereo cause there isnt enough right?

[Adidas]

yep so your old one had a place to plug in each rca plug
and now you have to ADD plugs to the back of your stereo cause there isnt enough right?

correct , thats where the splitters come in

[db_notso]

okay so thats why you have lost volume...

"if you have a a battery going to one bulb its brighter than going to two bulbs
because the bulbs share the power"

so you have half the power supplying the same bulbs get it?
and due to less power supply you have less control over the ones that went to the sub
so you have a speaker (normal) signal going to the sub instead of a sub signal designed for better bass.....

[Adidas]

okay so thats why you have lost volume...

"if you have a a battery going to one bulb its brighter than going to two bulbs
because the bulbs share the power"

so you have half the power supplying the same bulbs get it?
and due to less power supply you have less control over the ones that went to the sub
so you have a speaker (normal) signal going to the sub instead of a sub signal designed for better bass.....

Ah i get it all now, i should have got help before i wasted money on it, i'll be chucking in my old stereo tomorrow :/ ,
Massive thanks for all your help mate, appreciate it heaps. Cheers

[db_notso]

okay man good luck and no dramas the whole point of this colaboration of holden guys is so you can learn off eachother~!

[AmmoJammo]

clearly db_notso has no clue whatsoever, and its really quite sad that this thread has gone on for so long without anyone providing correct information!

what amplifier are you running?

you should simply be able to increase the gain on the channels that are running the sub so the setup will sound pretty much how it did with the old headunit.

[db_notso]

hes already got it turned up on each amp channel and adjusted stereo settings but not the same as his old stereo....
(he said up there and set for the sub at hz he wanted(from amp) as was proffesionally installed)


because his old stereo had a seperate subout plug wich gives a dedicated sub signal set by hertz from the stereo to cut out other noise and reduce signal loss of the lower frequencies giving a cleaner louder output from the amp

[wraith]

AmmoJammo is correct. RCA's are not as important as you make them out to be. Now granted having the RCA split now means no separate sub control (in regards to specific frequencies etc.) HOWEVER this can easily be accommodated by adjusting the amplifier and setting the sub to low frequency and the speakers to high frequency. Don't forget there are different equalizer modes between different head units which could also be a contributing factor. Now in saying all this you perhaps should of done some research first and spent a little more and gotten a better head unit with the for 2 RCA out's. Out of pure curiosity what brand is the head unit? db_notso I wish I could give you a serving but I don't feel like getting an infraction again...

[db_notso]

i want out and that guys sorted so a little and

but ohwell i guess if peeps read the whole thread theyd know that stuff was already covered so and just relax huh?

[wraith]

Try it again in English?

[db_notso]

ich bin shiezen houzen!~ i had to do it!~

[wraith]

Grow up mate and stay out of this thread you have got no idea obviously. Peace.

[AmmoJammo]

whats the headunit you've just bought, and what is the amp?