Going active with the 9887

[mannyahles 10+ year member]

I have a front set of comps and a rear set of comps. I am using the passive crossovers that came with them but the truth is.... the sound sux! //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

I am using the JBL HU (stock) so I am interested in buying the 9887. But how do i go active with two sets of comps and 2 12 inch subs. 2 way or 3 way... any help would be appreciated. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

My equipment is in my sig! //content.invisioncic.com/y282845/emoticons/thankyou.gif.5451126d09e870f796f50c3a4dd5acd7.gif

 

[nismos14 5,000+ posts]

First of all no point going active if you have a system setup so poorly //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Go with ONE set of comps up front, and use only hte midbass in the back, run the rear midbass off the front speaker output from the 9887.

THEN, run the fronts active of your 4 channel.

Good to go.

 

[mannyahles 10+ year member]

First of all no point going active if you have a system setup so poorly //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Go with ONE set of comps up front, and use only hte midbass in the back, run the rear midbass off the front speaker output from the 9887.

THEN, run the fronts active of your 4 channel.

Good to go.

OUCH, That left a mark! //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

So I would actively run my front set of comps of the 9887 HU and the rear comps would be powered by the 9887 HU. Then I could use 2 channels for the front tweets and 2 channels for the mids.... did I get your info correct? //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[nismos14 5,000+ posts]

Very good sir //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[mannyahles 10+ year member]

I understand that the rear comps are just a fill and that getting as much midbass out of them is a good thing. I guess I bought way too big of a 4 channel amp for one set of comps! lol

 

[krisfnbz 10+ year member]

Yeah going active is really only for one big powerful frontstage...I have come to realize that.

P.S I have finally set the gains on all of my equipment, and I have had time to mess around with it. I set the mids with a 1khz test tone, the tweets with a 4khz test tone, and the subs with a 40hz test tone.

I gave the Mids 90w on the Dmm(I think it was like 19v) @ 4 ohms

I gave the tweets 20w on the DMM(I think it was like 9v) @ 4 ohms(I found my tweeters are 4 ohm from rainbow)

I gave the subs 600w on the DMM(35v) @ 2ohms.

I had the volume at 25/35 while doing this.

I have come to realize that 20/25 is loud as fuvk, and 25/35 is pretty much unbearable to listen to for most songs.

My question is: If I have set my gains this way above, am I getting 90w at 20/25 volume on my HU?....I was always under the assumption that if I set 90w(19v) on the DMM at 25(3/4ths the head unit volume) that I would be getting 90w at 25.

 

[Worlddre 5,000+ posts]

the level on the radio at which your gains are set is the level at which you will recieve the power you set your gains for

 

[krisfnbz 10+ year member]

I fully have deadened my front doors/truck It took me forever to do.

I have dynaliner in between each hole in my front door. I would say about 20sqft of dynamat extreme on each door... maybe more. Freakin doors are SOLID.

Probably 40sqft in my trunk.

Here are some pics of my doors:

Also here is a pic of my Big 3 completed:

 

[krisfnbz 10+ year member]

the level on the radio at which your gains are set is the level at which you will recieve the power you set your gains for

Thats what I thought, in which case...when these speakers get 90w, they dont like it because its really fuvking loud and sounds distorted. maybe like 22 is okay for some songs like rap...it just all depends.

 

[Worlddre 5,000+ posts]

music and test tones are two very different animals

 

[Worlddre 5,000+ posts]

btw what store number do you work at?

 

[krisfnbz 10+ year member]

music and test tones are two very different animals

Yeah I guess so.... so when people say shit like "Im giving mine 300 a door'... seriously 300 is alot of ****ing power. They must be joking.

I see all the time people saying the SLC Rainbow line takes 150-200 daily... WTF?

btw what store number do you work at?

Why do you work at tweeter as well?

 

[Worlddre 5,000+ posts]

sure do

 

[krisfnbz 10+ year member]

sure do

Store 228... rockville... what store do you work at?... and what position are you?... WHats ur name

 

[Worlddre 5,000+ posts]

im an installer at 327 in charlotte

name is dre