Wanting to run active but confused...

[its_bacon12 10+ year member]

again, all subjective to preferences //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[nismos14 5,000+ posts]

Ya definately I don't argue that. Hell 100% of car audio is really subjective //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

its a pain in the *** to me. you might like it but i dont.
and ok about the 9887 and 880. but you might like the sound better of the 9887 and someone else the 880. again, subjective to listening preferences.

 

[Echo42987 10+ year member]

What about if I started to run a three way active setup? How do I setup the midbass? Do I need a seperate 2 channel and split the sub output?
-Nick-

answer anyone?

 

[nismos14 5,000+ posts]

You would still need to high pass it some how. Your head unit is not capable of truelly running a 3 way active front stage + sub.

 

[mikey7182 10+ year member]

You'll typically need 6 channels of amplification for your 3 way, and then your sub amp is separate. Midbass isn't going to be the same frequency range as your sub, so no, you don't want to use your sub RCAs. It would look something like this:

Sub: LPF@63Hz, 12db/oct

Midbass: HPF@63Hz, 12db/oct, LPF@300Hz, 12db/oct

Midrange: HPF@300Hz, 12db/oct, LPF@2.5kHz, 12db/oct

Tweeter: HPF@3.0kHz, 12db/oct

You will need either a HU that runs 8 channel, like one of the Eclipses, or have a 3 way Active HU then do the rest with a versatile amp. Or, you could just use the passive xovers that came with your components to cross over the midrange/tweeter, and use the 'high' xover on your 3 way Active HU to bandpass the mids/midrange. Then you would only need a 4 channel, and run the midbass off the front two channels, and the midrange/tweeter combo off the rears with the midrange actively x'd over@300Hz from the deck. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[nismos14 5,000+ posts]

Which eclipse runs 8 channels?

 

[mikey7182 10+ year member]

I thought I remembered seeing one that did... I guess not. Maybe it was the Clarion 9255...

 

[nismos14 5,000+ posts]

I thought I remembered seeing one that did... I guess not. Maybe it was the Clarion 9255...

Bingo.

There were rumors of it prior to the release of the CD7000... no dice though.

 

[amedeuce 10+ year member]

So what do you think nismos?

4 channel amp -

tweeters to front or rear channels

Mids to front or rear channels.

I always put the tweets to the front channels and mids to rear.

Setting gain test tones for comp sets 1khz

Setting gain test tones for active

Tweets 1khz or 5khz

Mids 1khz

?

 

[nismos14 5,000+ posts]

Um why 1k or 5k on the tweet?

What tweet are you using? Most won't play down to 1k without damage

 

[its_bacon12 10+ year member]

Ya definately I don't argue that. Hell 100% of car audio is really subjective //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

SQ yes, SPL pure numbers.

 

[its_bacon12 10+ year member]

Um why 1k or 5k on the tweet?
What tweet are you using? Most won't play down to 1k without damage

x2.

usually 2500-5000 is best crossover area

 

[its_bacon12 10+ year member]

You'll typically need 6 channels of amplification for your 3 way, and then your sub amp is separate. Midbass isn't going to be the same frequency range as your sub, so no, you don't want to use your sub RCAs. It would look something like this:
Sub: LPF@63Hz, 12db/oct

Midbass: HPF@63Hz, 12db/oct, LPF@300Hz, 12db/oct

Midrange: HPF@300Hz, 12db/oct, LPF@2.5kHz, 12db/oct

Tweeter: HPF@3.0kHz, 12db/oct

You will need either a HU that runs 8 channel, like one of the Eclipses, or have a 3 way Active HU then do the rest with a versatile amp. Or, you could just use the passive xovers that came with your components to cross over the midrange/tweeter, and use the 'high' xover on your 3 way Active HU to bandpass the mids/midrange. Then you would only need a 4 channel, and run the midbass off the front two channels, and the midrange/tweeter combo off the rears with the midrange actively x'd over@300Hz from the deck. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

i would use sharper slopes on the high pass. and you dont need 8 channels from the head unit. i am running 3 way off 1 set of rca's out of the head unit. sub, mid, tweet

 

[Flipx99 5,000+ posts]

i would use sharper slopes on the high pass. and you dont need 8 channels from the head unit. i am running 3 way off 1 set of rca's out of the head unit. sub, mid, tweet

3 way active is tweet, mid, sub

When many people say 3 way, they mean a 3way active front stage (really 4way active)

 

[Flipx99 5,000+ posts]

Which brings up this question //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Let's say you wanna run active. If you have an amp that will do 150x4, which would be a nice amount of power for the mids, but it seems like it would be total over kill on the tweeters. For example, if you are setting the gains on the amp with the headunit at 75% then even with the gain to the tweeters at zero you are still sending a shit ton of power to them.

I really want to get a 4 channel amp and run active, but I am worried that if I get something that has enough power for my mids that it might be overpowering to the tweeters. Any thoughts?

My tweeters like 100w.