sub wiring need help

[KenzBenz]

ok the amp is 500x1 @ 4 ohms
the sub i think is a 4 ohm DVC
so...how can i wire the sub to get a 4 ohm load?
parallel = 2 ohm
series = 8 ohm
? = 4 ohm?
thanks

[nokia8860]

Originally posted by KenzBenz
ok the amp is 500x1 @ 4 ohms
the sub i think is a 4 ohm DVC
so...how can i wire the sub to get a 4 ohm load?
parallel = 2 ohm
series = 8 ohm
? = 4 ohm?
thanks

Your amp is 1 channel

Your 1 driver is 4ohms

With the information you posted you already have a 4ohm load with 1 driver.

OR

If you mean your amp can be bridge to run mono then follow the manufacture wiring of a bridge/mono configuration. Usally by flipping a switch on the amp and using the positive post of one channel and the negative of the other. But the manual will usally tell you the correct way to do this.

[KenzBenz]

the amp is actually 2 ch. does that make a difference?

[audiophile]

is your sub a single voice coil, or dual voice coil? also if you bridge the amp, the amp will see half the resistance, only when it's bridged. for ex. if you connect a 8 ohm sub and the amp is bridged it will see a 4 ohm load. so if you have dvc sub, connect in series.:)

[KenzBenz]

the sub is DVC it is wired...parallel right now.
so this incorrect wiring is causing it not to hit hard like it can?

[audiophile]

what kind of sub is it? what kind of enclousre?

[KenzBenz]

thanks for helping audiophile.. the sub is an eclipse aluminum in sealed box. the amp is a soundstream rub II 500.2
how should everything be wired ?

[audiophile]

by any chance do you know how big the enc. is in internal vol.?

[KenzBenz]

hm the measurements ...that i have no idea. but im pretty sure its not the box

[audiophile]

you can also run the amp in stereo mode since you have a dvc. run one coil on to each channel. make sure that you have the same voltage coming out of both channels( you are going to need a multi meter). this is accomplished by disconnecting one of the terminals of each channel ( for example the positive) and get a bass cd with tones. now what you do is connect the meter to the amp ( where the speaker connects, remember the speaker is not connected) make sure the meter is in AC voltage.
put the cd to play ( put on repeat) on a certain tone (45 hz is fine) put the volume up 3/4 . and turn the gain up until you show a reading of about 30-40 volts AC. do this for the other channel as well. if this is to high turn the gain down until, again it reads equally in both channels.
if this doesn't work, play around with the positioning of the sub.:D

[KenzBenz]

hm i dont know mightbe the amp now i think...

the sub is 4.0ohm/coil
will this work with this planet audio amp?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18797&item=5703077297&rd=1
thanks everyone.

[KenzBenz]

another question:

amp:
RMS @ 2 Ohm 250x1
RMS Bridged @ 4 Ohms 500x1

since the sub is wired parallel to get a 2ohm load...does that mean im only getting 250 watts to the sub according to the specs of the amp?

by the way its connected like this to the amp like this:
R L
(+)(-) (+)(-)
|_________|
bridge

[pnsji]

make sure your amp could to 2 ohm bridged. I would guess if your amp -> 1x500 watts at 4 ohm, and if your amp could do 2 ohm, then it might be more than 1x500 watts

[pnsji]

actually, look at this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18796&item=5702990794&rd=1

Looks like 250x1 only.....

[audiophile]

Originally posted by KenzBenz
another question:

amp:
RMS @ 2 Ohm 250x1
RMS Bridged @ 4 Ohms 500x1

since the sub is wired parallel to get a 2ohm load...does that mean im only getting 250 watts to the sub according to the specs of the amp?

by the way its connected like this to the amp like this:
R L
(+)(-) (+)(-)
|_________|
bridge since the power is at 4 ohms wire the sub in series and bridge the amp, then the amp should see a 4 ohm load.;)

[Denlasoul]

Here's a good link explaining Series vs. Parallel (http://www.termpro.com/articles/spkrz.html)