Need help setting the gain

carshateme · 27th October 2011, 06:13 PM

Well I had two audiobahn ALUM10N...drivers blew because the gain was set to high I guess. So I contacted VMInnovations and amazingly enough my warranty was still active... So They're sending me 2 brand new ones and My Amp is a Hifonics HFI 2000D . AMP Specs

RMS Power at 4 ohms: 650 watts x 1 chan.
RMS Power at 2 ohms: 1300 watts x 1 chan.
RMS Power at 1 ohms: 2000 watts x 1 chan.
Maximum Power Output: 2000 watts

The specs for the subs are Sensitivity: 95.6 dB 1600 watt peak 800 Watt RMS Frequency response: 20 Hz - 500 Hz Impedance: 6 ohms Dual Voice Coil

The subs are ran at 1.5 Ohms but I'm thinking of wiring them 3ohms so I don't blow the drivers again this time. (Meaning I'd have to wire them separately...but if that means saving my subs for an extra few months til I get my sundown, I'm good for it.) or I can wire them both at 6 ohms

My audiobahns are leaving my sealed box and into a ported box..for I've blown so many subs in a sealed box...plus the sound in my cab isn't all that great.

sreten · 07:12 PM

Hi,

Anyone who thinks a 10" sub is 95.6dB senstivity is utterly deluded.
Or that it can take 800watts RMS, yeah right, do the real maths.

rgds, sreten.

m R g S r · 27th October 2011, 07:23 PM

I was gunna say the exact same thing. First I was gunna say dont trust audiobahn's specs, then I was gunna say that sensitivity figure is deff wrong! (well maybe it's correct with cabin gain factored in, or if xmax was very low) And I am not personally a fan of audiobahn's but hey if you're getting new ones for free give Em a shot!!

And with the hifonics amp I'd trust the more conservative 4 ohm rating for low (er) frequencies. Just keep the gain way down on the amp, to avoid clipping / DC voltage from being applied to your subs.

firechief · 27th October 2011, 07:33 PM

I suppose you could get more speakers, say twice a many. Or turn it down.

carshateme · 28th October 2011, 01:12 AM

well I believe I blew the drivers by having them at 1v gain and I have 8 gauge power wire on it. SO It was receiving the max voltage from the amp.

firechief · 28th October 2011, 02:37 AM

Sounds like that amp can cook just about any speaker, especally on the bass. The modern switching amps can put out a god awful amount of currnet/power. There are two choices, either install speakers that will take it, or turn it down. Those are the choices.

carshateme · 04:15 AM

Yeah I'm just holding.on to the new ones that the company sends me...go to dukes...have em tune my amp to the subs then buy my sundown z12...in which the amp I got will underpower the subs

27th October 2011, 06:13 PM	#1
carshateme diyAudio Member Join Date: Sep 2011	Need help setting the gain Well I had two audiobahn ALUM10N...drivers blew because the gain was set to high I guess. So I contacted VMInnovations and amazingly enough my warranty was still active... So They're sending me 2 brand new ones and My Amp is a Hifonics HFI 2000D . AMP Specs RMS Power at 4 ohms: 650 watts x 1 chan. RMS Power at 2 ohms: 1300 watts x 1 chan. RMS Power at 1 ohms: 2000 watts x 1 chan. Maximum Power Output: 2000 watts The specs for the subs are Sensitivity: 95.6 dB 1600 watt peak 800 Watt RMS Frequency response: 20 Hz - 500 Hz Impedance: 6 ohms Dual Voice Coil The subs are ran at 1.5 Ohms but I'm thinking of wiring them 3ohms so I don't blow the drivers again this time. (Meaning I'd have to wire them separately...but if that means saving my subs for an extra few months til I get my sundown, I'm good for it.) or I can wire them both at 6 ohms My audiobahns are leaving my sealed box and into a ported box..for I've blown so many subs in a sealed box...plus the sound in my cab isn't all that great. __________________ 1995 Buick Skylark Custom: Hifonics HIF2000D amp Big 3 Upgrade 1/0 gauge wire 3 10" ALUM10N Audiobahns XS Power XP2000 battery Sony CDX-GT43IPW head unit 12k Kensun headlights L.E.D back Kensun lights Street Glow blue neon light interior

27th October 2011, 07:06 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Anyone who thinks a 10" sub is 95.6dB senstivity is utterly deluded. Or that it can take 800watts RMS, yeah right, do the real maths. rgds, sreten. __________________ There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow Last edited by sreten; 27th October 2011 at 07:12 PM.

27th October 2011, 07:33 PM	#4
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	I suppose you could get more speakers, say twice a many. Or turn it down. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty

28th October 2011, 01:12 AM	#5
carshateme diyAudio Member Join Date: Sep 2011	well I believe I blew the drivers by having them at 1v gain and I have 8 gauge power wire on it. SO It was receiving the max voltage from the amp. __________________ 1995 Buick Skylark Custom: Hifonics HIF2000D amp Big 3 Upgrade 1/0 gauge wire 3 10" ALUM10N Audiobahns XS Power XP2000 battery Sony CDX-GT43IPW head unit 12k Kensun headlights L.E.D back Kensun lights Street Glow blue neon light interior

28th October 2011, 02:37 AM	#6
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Sounds like that amp can cook just about any speaker, especally on the bass. The modern switching amps can put out a god awful amount of currnet/power. There are two choices, either install speakers that will take it, or turn it down. Those are the choices. __________________ "You can keep your insurance baby nothing is guaranteed" -Tom Petty


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27th October 2011, 07:23 PM	#3
m R g S r diyAudio Member Join Date: Jan 2011	I was gunna say the exact same thing. First I was gunna say dont trust audiobahn's specs, then I was gunna say that sensitivity figure is deff wrong! (well maybe it's correct with cabin gain factored in, or if xmax was very low) And I am not personally a fan of audiobahn's but hey if you're getting new ones for free give Em a shot!! And with the hifonics amp I'd trust the more conservative 4 ohm rating for low (er) frequencies. Just keep the gain way down on the amp, to avoid clipping / DC voltage from being applied to your subs.

28th October 2011, 04:12 AM	#7
carshateme diyAudio Member Join Date: Sep 2011	Yeah I'm just holding.on to the new ones that the company sends me...go to dukes...have em tune my amp to the subs then buy my sundown z12...in which the amp I got will underpower the subs __________________ 1995 Buick Skylark Custom: Hifonics HIF2000D amp Big 3 Upgrade 1/0 gauge wire 3 10" ALUM10N Audiobahns XS Power XP2000 battery Sony CDX-GT43IPW head unit 12k Kensun headlights L.E.D back Kensun lights Street Glow blue neon light interior Last edited by carshateme; 28th October 2011 at 04:15 AM.

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