Rear speakers necessary?

[ftjandra]

I am just about done installing Adire's Koda component set for the front of my 1st gen. I was wondering what I should put in the rear, if anything? Maybe just the Koda 6.5" midbass driver? I don't think that I need tweeters in the back to mess up the soundstage (but am not sure). Here is what my setup will be:

Koda 6.5" components in the front
??? in the rear
12" Brahma in trunk
Phoenix Gold Xenon X200.4 (200watts x 4)

With regards to the amp: If I get rear speakers, then I will get another amp for the Brahma (probably a X600.1 or X1200.1). If I don't get rear speakers then I will use two channels (400watts) from the X200.4 for the Brahma. Or, I might use my head unit to power the rears (Alpine CDA-9825), but I was thinking of shutting off its internal amps.

Note: There is almost never more than two people in the car...it's been over 5 years since anybody has sat in the back...

--Ferdi

[Vash00es]

Just use rear speakers for rear fill, not really needed

[blue LEDz]

i wouldn't bother with them. but i would still get a bigger amp for that brahma and then bridge the 4 channel to the fronts. you'll have to high pass the kodas a little higher, so protect them from the increased power, but once you've got them properly adjusted, blend the sub to them for best sound.

[ftjandra]

i wouldn't bother with them. but i would still get a bigger amp for that brahma and then bridge the 4 channel to the fronts. you'll have to high pass the kodas a little higher, so protect them from the increased power, but once you've got them properly adjusted, blend the sub to them for best sound.

So, I should give the front 400watts/ch...and I thought 200watts would be too much! Maybe I should have just bypassed the Koda XO and use the one built in the amp if I am going to use all 4 channels for the front?

--Ferdi

[Kevin]

i wouldn't bother with them. but i would still get a bigger amp for that brahma and then bridge the 4 channel to the fronts. you'll have to high pass the kodas a little higher, so protect them from the increased power, but once you've got them properly adjusted, blend the sub to them for best sound.

eh.. i still don't get that about you dude. your setup.. weren't you running 200 watts to 5 1/4 inch type-r components in your old protege? granted you had them fully equalized like a bastard (30 band eq), when you're setting your cross over point at 200 hz, doesn't that effectively drop out anything between say 80/90 hz.. all the way to 200hz? i mean.. there is ALOT of low to midrange sound information and detail within that small range.. not enough to miss a beat or miss a vocal.. but definately enough to make a difference? this was effectively my problem with my cdt-62 components, when i was looking at running them at 275 watts at 4 ohms.. the sound was crisp and somehow cleaner, i did lose the right to left tonal differentiation (sp), i didn't have to turn them up loud at all to get them to a comfortable listening volume, and the sub went well with such a setup. but i was only able to stand this configuration for a short while.. no matter how i equalized the sound, no matter where i could safely change the crossover points, no matter what volume music was played.. i was not able to make everything blend together as nicely as when i had my components crossed over at 125 hz. the sound was of course a little more distorted at a higher volume when i ran my components at 70 watts.. but for every day concert hall quality listening, i will never complain. different strokes for different folks though, right? i thought i'd never be happy with just listening to a pair of front speakers before.. but i tried something new and i can't understand as to why if you have a subwoofer.. why rear fill is essential. even my rear seat passengers didn't complain much.. if anything, it was more complaints about getting a constant back massage by a 15 inch subwoofer than not being able to hear the music clearly enough. experiment and adjust as needed is the best policy
kevin

[blue LEDz]

So, I should give the front 400watts/ch...and I thought 200watts would be too much! Maybe I should have just bypassed the Koda XO and use the one built in the amp if I am going to use all 4 channels for the front?

--Ferdi

DO NOT USE THE X-OVER BUILT INTO THE AMP AS AN ACTIVE X-OVER.

you'd be better off getting a cheap basic active x-over, if you are looking into that. as for the power, you don't have to, or need to feed the speakers 400 watts. it's all about proper adjustment.

[blue LEDz]

eh.. i still don't get that about you dude. your setup.. weren't you running 200 watts to 5 1/4 inch type-r components in your old protege? granted you had them fully equalized like a bastard (30 band eq), when you're setting your cross over point at 200 hz, doesn't that effectively drop out anything between say 80/90 hz.. all the way to 200hz? i mean.. there is ALOT of low to midrange sound information and detail within that small range.. not enough to miss a beat or miss a vocal.. but definately enough to make a difference?

100 watts going to each 5.25" driver, and 100 watts going to each tweeter. i never finished putting the 8's in the doors, which was going to cover the mid-bass freqs. suprisingly, the 5.25's did quite well for mid-bass when i had them high passed at 150 hz with all that power. course i did have a 30 band eq. they where also fully enclosed. but i'd have them damn near at full excursion quite a bit. i wanted the 8's so i didn't have to push them so hard.