Going active with the 9887

[nismos14 5,000+ posts]

Okay I see.... now that I realize it going active in the front is really mainly only for front stage, because I cant even power my rear speakers through HU power now that my HU is in 'active" mode. Does this make sense?....I would have to amp the rears?

No, you can turn power IC on, and power the rears off the rear speaker outputs of the HU.

 

[krisfnbz 10+ year member]

No, you can turn power IC on, and power the rears off the rear speaker outputs of the HU.

Okay so thats why my rears were not turning on. Which menu is Power IC in?....What does it stand for?... Power Internal..?....somethin.

 

[nismos14 5,000+ posts]

Something like that, go into setup and audio then power ic

 

[krisfnbz 10+ year member]

Something like that, go into setup and audio then power ic

cool man.. thanks!

 

[nismos14 5,000+ posts]

No problem.

 

[krisfnbz 10+ year member]

Im acctually about to sell my MRP-F550 for $175. What amp can you think of to replace this in my setup? I was thinkin about the ZX650.4?....I know their will be alot of headroom for the tweeters... but I figure if someone is going to take this amp off my hands for $175, I can get a much better amp to power these rainbows!

 

[mannyahles 10+ year member]

I constantly change my settings I have mids that play down to 40 hz effectively so I've got these set as my 6 xover points:
1:

50hz low lp

50hz mid hp

1600hz mid lp

2000hz tweet hp

2:

80hz low lp

80hz mid hp

1600hz mid lp

2000hz tweet hp

3:

80hz low lp

80hz mid hp

2000hz mid lp

2500hz tweet hp

4:

125hz low lp

80hz mid hp

2500hz mid lp

2500hz tweet hp(-3)

5:

80hz low lp

80hz mid hp

2500hz mid lp

3200hz tweet hp (-3)

6:

80hz low lp

80hz mid hp

3200hz mid lp

3200hz tweet hp

Do you change these depending on the genre of music you are listening too or perhaps the quality of the recording?

 

[nismos14 5,000+ posts]

Probably more typical of my speakers and how they play vs the recordings or genre. Also I have recently changed ALL of those because of new speakers, and having found the peak that I had.

 

[tcguy85 10+ year member]

No, you can turn power IC on, and power the rears off the rear speaker outputs of the HU.

if the rear rca's are now for the tweeters, then if you turn the internal amp back on the rears will now get the same frequencies as the tweeters.

the internal amp and the rcas will work together, meaning the internal amp will also bandpass the mids and high pass the tweeters.

at least thats how pioneer does it. pretty sure its the same on the alpines.

 

[nismos14 5,000+ posts]

I don't know if it is, but you are right that if it does that rear is not the one he should use, Krisfnbs you should use the front speaker outputs to gaurantee at least a midbass signal.

 

[tcguy85 10+ year member]

I don't know if it is, but you are right that if it does that rear is not the one he should use, Krisfnbs you should use the front speaker outputs to gaurantee at least a midbass signal.

also, if you run the front active then run say 80-3k through the rears they will be set to the same T/A number as the front mids.

i just don't think it's worth it to run rears at all. seems like a mess trying to run an active front stage AND rear fill. if you have enough of a front stage you'll be fine with just fronts and a sub(s).

 

[nismos14 5,000+ posts]

I agree, but its for rear peeps, who cares, LOL. I'm gonna run a set, rainbow 3.5".

 

[krisfnbz 10+ year member]

Yeah I wont be running rears with this head unit. If I do end up running rears I will just end up using the pre-out on my main amp and get a signal, and use that amps crossover to set the rears. I probably wont be doing this anytime soon.

If I was to just go ahead and use the passive crossovers for my rainbows...pretty much that would just mean that I no longer have control of the crossover points from the front of the car, but only from the back of the car. Which would free up 2 channels..

But I think I will keep it active.

 

[nismos14 5,000+ posts]

No, you can use hpf from the HU, and lp from the HU for the sub.

 

[aeon 10+ year member]

i've been messing with my rear speaker for the past week or so. i have them hooked up to the front output wires from the hu. they seem to pull the stage to far back and the music just doesn't sound right with them on. i've tried turning the gain up for the front speakers and that helped pull the stage up front more, but i still don't like it. i even tried putting a couple layers of ensolite in the inside of the door speaker grill so i can get less output from the rear speakers, but it still sounds a little off.

i do like the fullness and more mid-bass that the rear speakers give though. the sub blends in perfectly, like there isn't even a sub back there.

after about a week, i'm back to just running my front stage only. i like the clarity and imaging better.