Posted March 8, 200916 yr 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?
March 8, 200916 yr Double check your wiring. Almost sounds like something is wired out of phase! Those should slam.
March 8, 200916 yr And you tried to question me?You now have me mad as hell. :madsign: :madsign: Edited March 8, 200916 yr by bassahaulic
March 8, 200916 yr http://www.soundsolutionsaudio.com/forum/i...showtopic=26094Only 1 post is necessary!
March 8, 200916 yr http://www.soundsolutionsaudio.com/forum/i...showtopic=26094Only 1 post is necessary!There's actually three.
March 8, 200916 yr http://www.soundsolutionsaudio.com/forum/i...showtopic=26094Only 1 post is necessary!There's actually three. I see!
March 8, 200916 yr maybe subs are wired out of phase. check the your wiring configuration on the subs.
March 8, 200916 yr Author http://www.soundsolutionsaudio.com/forum/i...showtopic=26094Only 1 post is necessary!There's actually three. I see!Sorry- my computer was freaking out.
March 8, 200916 yr No worries! But double check to make sure you don't have something wired out of phase.
March 8, 200916 yr Author Whats your amp settings on?Adjusting the crossovers does not dramatically change the situation
March 8, 200916 yr ....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 .. ;)
March 8, 200916 yr Whats your amp settings on?Adjusting the crossovers does not dramatically change the situationWrong.Id still check
March 8, 200916 yr Author 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?
March 8, 200916 yr Author ....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?
March 8, 200916 yr ....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.
March 8, 200916 yr Author 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?
March 8, 200916 yr Author i say a wire was pinched somewhere.why would I get High voltage out if that was the case?
March 8, 200916 yr 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
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