QuestionHi,
I'm using 85hz "bass blockers" on the four, 4ohm, speakers I'm running off of the factory head unit on my '93 Honda Civic EX.
1st part:
I want to add a passive crossover and tweeters to this system. Will 4ohm tweeters present a 2ohm load to the amps individual channels?
I realize, that with an active crossover and seperate amp this would not be an issue. However, this would be a much less expensive and easier project as I would not have to run a power line for the amp and active crossover. Speaking of that;
2nd part
If I decided to go the active route, could I tap into an existing power line already going to the trunk? Or is running a line, straight from the battery to each, my only choice?
If it is...Where can I get info on how to, properly, do this?
Thank you for your time!
Jose
AnswerAnswer 1
The speakers themselves will load the channel at about 2 ohms, but the crossovers will be a factor too and will likely effect the overall load. Without an actual impedance meter this can get very tricky to predict.
A better choice would be to use a set of new Two-Way 12db crossovers that would let you add the mids and highs with predictable loading effects on the amplifiers in question.
*As a note, adding component amps and active crossovers will let you reduce each amplifiers' output bandwidth allowing for much more dynamics and dependable sound (due to the amps only doing part of the frequencies).
Answer 2
In most cases, probably not.
You will need a good 8 gauge wire per amp. So, if running two amps, you may want to use 4 gauge from the battery leading to the back where it will split off through a power distribution block to (up to) four 8 guage ones.
Be sure to use rubber grommets when going through the firewall or other metal wall and proper fusing at the battery to protect the entire amperage load the 4 guage will be subjected to.
If you can give me some specifics, I can help you with about any issue.
I hope this helps.
Sincerely,
Jerry Mael
