Lethal Injections-What's wrong?

[gldnbuddy 0]

I installed 2-12" IA Lethal Injections (600W ea.) in a custom box, 4.25 cu.ft. @ 33Hz (plans from Fisher Customs). They're powered w/a Hifonics 1608D (1100W @ 2 Ohms). The coils are wired in parallel then the subs in series giving a load impedence of 1.7 Ohms. I set the gain w/a 45Hz tone to a 43v output. It sounds terrible! And not very loud. The Alpine PL5 (250W powered Lat sub) it replaced sounded better and louder. I am getting some significant dimming so there's a lot of current flow. Are the amp ratings possibly in peak pwr. giving only about 200W ea.? I thought they were rms, the manual doesn't specify. At lower volume (20/35 and below) the subs are almost non-existent.

All of the components are new. I also installed a 4ch. for the doors and it sounds great. What did I do wrong?

I installed 2-12" IA Lethal Injections (600W ea.) in a custom box, 4.25 cu.ft. @ 33Hz (plans from Fisher Customs). They're powered w/a Hifonics 1608D (1100W @ 2 Ohms). They are wired for a 2 Ohm load. I set the gain w/a 45Hz tone to a 43v output. It sounds terrible! When it hits it sounds like a rattle and the lows aren't there. And not very loud. The Alpine PL5 (250W powered Lat sub) it replaced sounded better and louder. I am getting some significant dimming so there's a lot of current flow. Are the amp ratings possibly in peak pwr. giving only about 200W ea.? I thought they were rms, the manual doesn't specify. At lower volume (20/35 and below) the subs are almost non-existent.

All of the components are new. I also installed a 4ch. for the doors and it sounds great. What's wrong?

I installed 2-12" IA Lethal Injections (600W ea.) in a custom box, 4.25 cu.ft. @ 33Hz (plans from Fisher Customs). They're powered w/a Hifonics 1608D (1100W @ 2 Ohms). They are wired for a 2 Ohm load. I set the gain w/a 45Hz tone to a 43v output. It sounds terrible! When it hits it sounds like a rattle and the lows aren't there. And not very loud. The Alpine PL5 (250W powered Lat sub) it replaced sounded better and louder. I am getting some significant dimming so there's a lot of current flow. Are the amp ratings possibly in peak pwr. giving only about 200W ea.? I thought they were rms, the manual doesn't specify. At lower volume (20/35 and below) the subs are almost non-existent.

All of the components are new. I also installed a 4ch. for the doors and it sounds great. What's wrong?

[Kanaworm$ 292]

Double check your wiring. Almost sounds like something is wired out of phase! Those should slam.

[bassahaulic 155]

And you tried to question me?

You now have me mad as hell. :madsign: :madsign:

Edited March 8, 2009 by bassahaulic

[RobClay 20]

Whats your amp settings on?

[Kanaworm$ 292]

http://www.soundsolutionsaudio.com/forum/i...showtopic=26094

Only 1 post is necessary!

[bassahaulic 155]

You are a fail fool.

[Bobaflob 0]

http://www.soundsolutionsaudio.com/forum/i...showtopic=26094

Only 1 post is necessary!

There's actually three.

[Kanaworm$ 292]

http://www.soundsolutionsaudio.com/forum/i...showtopic=26094

Only 1 post is necessary!

There's actually three.

I see!

[bassahaulic 155]

[Kanaworm$ 292]

Triple post!

[fritosaregood 0]

maybe subs are wired out of phase. check the your wiring configuration on the subs.

[gldnbuddy 0]

http://www.soundsolutionsaudio.com/forum/i...showtopic=26094

Only 1 post is necessary!

There's actually three.

I see!

Sorry- my computer was freaking out.

[Kanaworm$ 292]

No worries!

But double check to make sure you don't have something wired out of phase.

[gldnbuddy 0]

Whats your amp settings on?

Adjusting the crossovers does not dramatically change the situation

[slim2fattycake 85]

check everything again. most problems are due to user error.

[diablo_331 23]

adjusting the phase knob will...

Edited March 8, 2009 by diablo

[Tyan 1]

....it sure isnt the subs its your installation ...and as the Subs r rated @ 600Wrms ...and on the Crapxonics they see ... each around 400Wrms <---but they should still slam ... just double---triple check everythin or your electrical just cant keep up .. ;)

[RobClay 20]

Whats your amp settings on?

Adjusting the crossovers does not dramatically change the situation

Wrong.

Id still check

[gldnbuddy 0]

check everything again. most problems are due to user error.

All wiring checks out. I have 43v out with a 45hz tone. It acts like it's not getting much power. Also- when I plug in the bass knob the power light on the amp dims, what's up with that?

[gldnbuddy 0]

....it sure isnt the subs its your installation ...and as the Subs r rated @ 600Wrms ...and on the Crapxonics they see ... each around 400Wrms <---but they should still slam ... just double---triple check everythin or your electrical just cant keep up .. ;)

I'm thinking it's the electrical system. The battery is new and the big three is done but the alt is probably only 105a. I disconnected the 4ch and only had the subs runnin' and they're almost non existent the lows aren't there and when it hits it just rattles. I know I probably need a 200a alt but should it be that bad without it?

[ADK 0]

....it sure isnt the subs its your installation ...and as the Subs r rated @ 600Wrms ...and on the Crapxonics they see ... each around 400Wrms <---but they should still slam ... just double---triple check everythin or your electrical just cant keep up .. ;)

I'm thinking it's the electrical system. The battery is new and the big three is done but the alt is probably only 105a. I disconnected the 4ch and only had the subs runnin' and they're almost non existent the lows aren't there and when it hits it just rattles. I know I probably need a 200a alt but should it be that bad without it?

there is no reason why you would need a new alt on 1200 watts. I have a like 1-2 year old battery, an alternator thats been in the car since 95' I believe its only a 95 amp, and the big three done and i dont drop below 14 volts, no dimming at all. this happened to me when i had a pioneer premier rated at 1000rms. I had the setup running pretty good for a while until i took the sub out of the enclosure to fix something with it and I eneded up replacing the speaker wire, I most have wired it wrong and ended up burning a coil, causing extreme dimming.

[gldnbuddy 0]

adjusting the phase knob will...

No effect! I did not ground the engine block to the chassis (So the big 2 are done). Will that make that much of a difference or is that just for noise reduction?

[juiced 0]

i say a wire was pinched somewhere.

[gldnbuddy 0]

i say a wire was pinched somewhere.

why would I get High voltage out if that was the case?

[ia2 21]

What coils do you have? D2? If so, you need to SERIES each sub individually, THEN Parallel to the amp to get your 2 ohm load.

Try this, and if it doesn't help, let me know so I can try to help further.

Thanks,

Josh