PDA

View Full Version : how much power to germs biamping with jbl px 300/4?



gsr22
07-14-2007, 11:04 PM
hey i was wondering how much power you would recommend sending to my rainbow germaniums that i picked up from 3.56speedmax(great seller buy the way)
my amp puts put 123.5x4 @4ohms
thanks for your

DejaWiz
07-15-2007, 03:53 AM
As much as it'll give them cleanly. Germs can take quite a bit of power (200w rms pc).

alphakenny1
07-15-2007, 03:18 PM
you want to bi-amp? it'll work with the hu you have. if you bi-amp, each speaker will get 123.5 watts.

krisfnbz
07-15-2007, 03:30 PM
buy a better amp for those speakers dude, come on! dont be el cheapo when you have rainbows mang

gsr22
07-15-2007, 03:33 PM
buy a better amp for those speakers dude, come on! dont be el cheapo when you have rainbows mang

im pretty sure my amp is more than capable for the germs 123.5x4 made by crown and for only 200 shipped i dont think anything could compare with it. sure i could have spent 400 for an arc4500 or dls but....

gsr22
07-15-2007, 03:35 PM
you want to bi-amp? it'll work with the hu you have. if you bi-amp, each speaker will get 123.5 watts.


i think your trying to say i can go active with my headunit yes i know that but i want to use the germs passive xover with built in bi amping ports along with 4 different tweeter announcations(sp/word?)

WhoSayWho?
07-15-2007, 10:16 PM
buy a better amp for those speakers dude, come on! dont be el cheapo when you have rainbows mang

You could not be more wrong about that amp.

alphakenny1
07-16-2007, 12:02 AM
i think your trying to say i can go active with my headunit yes i know that but i want to use the germs passive xover with built in bi amping ports along with 4 different tweeter announcations(sp/word?)

no not saying that at all. just saying you can bi-amp them and you'll be able to individually control each speaker through your hu as well.

gsr22
07-16-2007, 10:48 AM
no not saying that at all. just saying you can bi-amp them and you'll be able to individually control each speaker through your hu as well.

so i can put my deck in netwok mode and be able to have fulll tuning access
sorry im a little confused.

gsr22
07-16-2007, 10:49 AM
also how much power should i give the tweets and mids i dont wont to over or underpower them.
thanks again for all the help

gsr22
07-16-2007, 10:50 AM
As much as it'll give them cleanly. Germs can take quite a bit of power (200w rms pc).

thats 2 channel trhough what about tweets and mids sepreratly

DejaWiz
07-16-2007, 10:55 AM
thats 2 channel trhough what about tweets and mids sepreratly

2x200w rms through a passive xovers non biamped = 200wrms to the mids, 200w rms to the tweets.

Same as 4x200w rms through the passive xovers biamped.

When biamping, just adjust the power incrementally on the mids and tweets separately to see what blends best with your specific application and subjective preference.

gsr22
07-16-2007, 04:11 PM
2x200w rms through a passive xovers non biamped = 200wrms to the mids, 200w rms to the tweets.

Same as 4x200w rms through the passive xovers biamped.

When biamping, just adjust the power incrementally on the mids and tweets separately to see what blends best with your specific application and subjective preference.

but wouldnt the 200x2=100 to the tweets and 100 to the mids

if it waws 200 to both wouldnt that be 400x2

DejaWiz
07-16-2007, 04:23 PM
but wouldnt the 200x2=100 to the tweets and 100 to the mids

if it waws 200 to both wouldnt that be 400x2

Nope. An amplifier supplies rms power to a specific frequency or range thereof simultaneously.

Through a passive crossover, it might be similar to this: Mid = 80-2500Hz getting 200w rms, High = 2500+ Hz getting 200w rms from the same amp channel.

CrazedCat
07-16-2007, 04:36 PM
Start off by bi-amping them. If the tweeters are in closer proximity or directly on axis to listening level then you can attenuate them (say -3db to give them half power) to match the mids.

gsr22
07-16-2007, 11:30 PM
so can i put my deck in network mode the one used for active or keep it in standard

DejaWiz
07-16-2007, 11:36 PM
so can i put my deck in network mode the one used for active or keep it in standard

For front 2 way comps:
Network mode = no passive crossovers required. Need 4 channels.
Standard mode, biamped = use passives. Need 4 channels.
Standard mode, basic wired or biwired = use passives. Need 2 channels.