is bi wiring a 2 way front with a 4 ch amp

Hi there,

I´m looking for your comments and advice on this.

I have a boston gt-42 (4x75w 4ohm or +- 220w 2 chan. bridged 4ohm i think?) and ready to fit the 2 way compo hertz mlk-165. They would go to the passive crossover (bi-wire capable) supplied in the kit.

Which would be the preferable scenario (objective SQ):

[B]1[/B] - bi-wire all channels to each mid and tweeter outputs from crossovers, as per

in which i would probably still have 75w per channel, or;

[B]2[/B] - bridge the amp at its outs, so just 1 pair of wires gos into the crossovers, but with higher power

Also in bi-wiring, and because the scheme puts the attenuation at 0db stating to control from amp, isnt this like going half-active or something? alpine 9887R has its own low/band/high active crossovers.

So which scenario i would get a better SQ, with bi-wiring/lower power, or regular single wiring but higher watts?

greets

ok,

thks man.. you´re right, bi-amping.. sorry for the nooby questions.

maybe you care to comment on

http://www.caraudio.com/forum/showthread.php?p=4671437&posted=1#post4671437

and

http://www.talkaudio.co.uk/vbb/showthread.php?p=3063161&posted=1#post3063161

because i am having mixed answers for the very same issue...

The folks who think more power is the answer to every question are usually simply wrong.  Your system may get louder by bridging the amp (by +3 to +6db, probably) but it will have LOWER SQ than simply wiring normally to one channel as a bridged amplifier almost always operates with higher distortion than one channel alone.  And bi-amping will give you the best overall sound since the amplifiers will work a lot less to produce the same SPL levels, especially the amp connected to the tweeter.  If you want the best SQ, go for the bi-amp setup.

i get that..!

not to do lobbying, but your forum here and the posts in it are the most unbiased and understandable i found so far.

I could bi-amp and run active mode from the head unit.. high rca´s to tweerter, mid rca´s to mid range/mid woofer drivers and low to sub, which has it´s own amp (alpine mrp-m500) so this one would be neglegible, and each one with a cut off freq. accordingly.

the tweeter high pass advised is anywhere from 1800Hz to 5000Hz, and the resp.frequency is lowered from 1300Hz to 950Hz (i´d prefer the smoothness with lower Queue)

what do you think of that?

i also found this

http://sound.westhost.com/bi-amp.htm

which seemed quite good and consistent learning reading.

thks

totally right!

also someone answered

"You can also get yourself a smaller good quality two channel 75 watt and eliminate the passive. This will give you the best of both worlds letting you run active from the 9887 and have more power from not having the passives in the way. Not much money to invest for a lot of gain. "

How can someone say this?? most of my SQ sound relies or will rely on the quality specs of both the alpine 9887R and the boston GT-42 amp!!

so again bing.. agree with you lolol

sorry for one more question guys,

adding to that, on an active setup should the control be given full to the alpine head unit, thus disconecting all the filters from the external amp, or is it that a full active setup has no external amp/amp crossovers, coming all just from the head unit.?

greets

Hello people,