1000watt amp and 1000 watt sub..dont work

itschristorres8 · August 29th, 2006, 08:09 PM

ive had a 1000 watt amp and a 1000 watt sub in my car for a little while and now it doesnt work. first it started at where it would work for 20-30 min then stop. for a while. now it doenst work at all.
does anyone know which it might be? the Sub or the Amp?
thnks

ChrisJ · August 29th, 2006, 08:31 PM

The amp is getting too hot and prolly tripping a sensor on the amp...Check all your wires...
What gauge wire are you running?

Is the amp bridged?

What brand amp?

What brand sub?

itschristorres8 · August 29th, 2006, 08:32 PM

i have no clue...so ur sayin it the wires?
what about the sub? is that fine?

ChrisJ · August 29th, 2006, 08:33 PM

I need to know the details so I can properly diagnose the situation...

itschristorres8 · August 29th, 2006, 08:35 PM

well i really dont have to much of an idea bbout the wiring.
its a phoniex digital sub, and the amp idk wat it is.
there both 1000watts. isnt one of them supose to be higher or lower?
=/ thats really all i know bout it. the wiring im guessin is good because it used to work just fine, i know the amp would get hot. but i turn the car on now and the power light on the amp turns on green.....

itschristorres8 · August 29th, 2006, 08:39 PM

what if i get like a 500 watt amp...will it work maybe?

ChrisJ · August 29th, 2006, 08:39 PM

Its the heat of the amp...

It prolly gets to hot and shuts off...Can you snap me a pic of the amp?

It would be great if you could do that...Maybe I could tell you what kind of amp it is...

Also if your power wire is too small then you are starving the amp...For 1000 watts you need to run at least 4 gauge IMHO...

There are alot of things that can cause this and without the info its going to be hard to give you an exact answer to your problem...

itschristorres8 · August 29th, 2006, 08:55 PM

kk thnks, i'll try to get a pic of it soon, but it'll probably be early tomoro

itschristorres8 · August 29th, 2006, 08:56 PM

its not a well known amp i know that, i got it at likea flee market for a good price tho

97TunedMustang · August 29th, 2006, 09:33 PM

I would have to imagine the amp is crap. its probably just overheating now quickly and getting progressively worse. I would say its likely that your sub is perfectly fine however. As far as the wiring even 8ga is more then enough up to 1000rms and 4ga would be a good idea once you get to the 1500rms or more mark. although the amp you said is 1000 watts i guarantee thats the peak rating, more then likely its only 300rms at best output so your wiring is more then sufficient. Check it over and make sure its not shortin out anywhere but i doubt it. if you cant find any faults id look into getting a new amp and sub(s).

itschristorres8 · August 29th, 2006, 09:46 PM

get both new?!
well wat if i just get lik a 500 watt amp, cuz i can get a 500 or 600 or 700 watt amp for freee from a store (wink) but anything else lik a new sub an all i'd rather just throw out.
im more intrestest in speed now. unless i can fix this up cheep then ya

ChrisJ · August 29th, 2006, 10:17 PM

IMHO just go with a new amp...Since it is an el'cheapo amp it is prolly junk...IMHO when you buy stereo compnents you get what you pay for...

Me personally I prefer bigger wires...So Anything over about 600-700 watts I go with 4 gauge...But I am old school like that...

Your sub should be fine...

itschristorres8 · August 30th, 2006, 12:12 AM

k wat size amp shuld iget for the sub?

97TunedMustang · August 30th, 2006, 06:24 AM

really to know for sure you should figure out what rms continuous wattage the sub can handle. id be willing to bet its probably less then half the peak so i wouldnt go over an amplifier rated any higher then 400rms wattage. and since its just the one sub connect it up to an amp that makes that wattage bridged.

itschristorres8 · August 30th, 2006, 12:46 PM

k, thnks you guys for the help, but i honestly have no idea about this whole sub and amp thing and the wiring, im better in the engine. and i dont wana take it to a place for them to look at then pay them for there advice. plus its all just added weight on my car anyway. so im ditching the sub and amp.

thank you though for your help

ChrisJ · August 30th, 2006, 03:23 PM

No prblem...And I agree with ditching the sub and amp...Sell it and buy performance parts...

itschristorres8 · August 30th, 2006, 04:42 PM

yea thats wat im gunna do. thnks though

320hpPony? · September 11th, 2006, 11:55 PM

If it worked before (for a few montha at least),I would say it could be 1 of like 3 things.The amp turns on in protect mode right away right? Could be a bad ground connection(simplest thing it could be).No ground will pit the amp into protect.

You could have possible burnt out the amp from extended use(cheapies tend to do that)

OR you fried the voice coil in the sub.Yeah I hear it now,"you can't blow a 1000 watt sub with only like 300 watts!" Thats BS though!You can blow a sub with 100watts or even 15watts.Distortion will blow any speaker with ANY amount of power. Under driving a sub will blow it too(speaker say 200 watts RMS and you only give it 100watts).

Question

id the sub's sound get progressivly worse?Did you get a burnt smell(even a little)?Is it a "dual voice coil"(DVC) sub? Did you check the amp's fuse(the one on the amp not the one on the power wire)?

My bet is the sub is blown(one or both voice coils if it's a DVC).Since most ppl don't know distortion from the trunk rattling they don't know that it's happening(distortion).The fuse ON the amp is actually to protect the sub from distortion because it's on the pre-amp loop so when the input distorts or clips,it pops.It won't pop if the sub is distorting though from over/under driving.

Good Luck Bro!
MECP certified personell
14 years audio/visual experience

320hpPony? · September 11th, 2006, 11:57 PM

By the way!!The gain knob IS NOT a VOLUME knob!!!!! Having this turned up too high will distroy a sub!!! I never turn it over 1/3 of the way up.You really need an oscilloscope to set it properly!

daviddunn · December 3rd, 2006, 10:19 PM

This is a simple answer assuming that all of your wiring is ok. This might throw you off a little bit but matching impedance is what makes ALL subs work. Most people dont understand how impedance works, they just think a 1,000 watt amp works with a 1,000 watt speaker.
NOT TRUE! Check the impedance on the speaker 1st, make sure that the impedance on the speaker isnt lower than what the amp is rated for. Example...you have an amp that is 2 ohm stable and pushes 600 watts at 2 ohms, and you connect this to a sub wired at 1 ohm. This is going to cause your amp to push between 750-800 watts now, which is going to cause it to shut down after a few minutes (in your case 20-30 mins) because its getting too hot too fast. Youre causing the amp to push out more power than its supposed to. Thats why its shutting off. Check the impedance, make sure that its not wired lower than whats recommended.

August 29th, 2006, 08:09 PM	#1
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	1000watt amp and 1000 watt sub..dont work ive had a 1000 watt amp and a 1000 watt sub in my car for a little while and now it doesnt work. first it started at where it would work for 20-30 min then stop. for a while. now it doenst work at all. does anyone know which it might be? the Sub or the Amp? thnks __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 08:31 PM	#2
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 38,220 Blog Entries: 4 iTrader: 10 reviews	The amp is getting too hot and prolly tripping a sensor on the amp...Check all your wires... What gauge wire are you running? Is the amp bridged? What brand amp? What brand sub? __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

August 29th, 2006, 08:32 PM	#3
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	i have no clue...so ur sayin it the wires? what about the sub? is that fine? __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 08:33 PM	#4
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 38,220 Blog Entries: 4 iTrader: 10 reviews	I need to know the details so I can properly diagnose the situation... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

August 29th, 2006, 08:35 PM	#5
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	well i really dont have to much of an idea bbout the wiring. its a phoniex digital sub, and the amp idk wat it is. there both 1000watts. isnt one of them supose to be higher or lower? =/ thats really all i know bout it. the wiring im guessin is good because it used to work just fine, i know the amp would get hot. but i turn the car on now and the power light on the amp turns on green..... __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 08:39 PM	#6
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	what if i get like a 500 watt amp...will it work maybe? __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 08:55 PM	#8
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	kk thnks, i'll try to get a pic of it soon, but it'll probably be early tomoro __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 08:56 PM	#9
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	its not a well known amp i know that, i got it at likea flee market for a good price tho __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 09:33 PM	#10
97TunedMustang Enthusiast Join Date: Jan 2006 Posts: 965 iTrader: 0 reviews	I would have to imagine the amp is crap. its probably just overheating now quickly and getting progressively worse. I would say its likely that your sub is perfectly fine however. As far as the wiring even 8ga is more then enough up to 1000rms and 4ga would be a good idea once you get to the 1500rms or more mark. although the amp you said is 1000 watts i guarantee thats the peak rating, more then likely its only 300rms at best output so your wiring is more then sufficient. Check it over and make sure its not shortin out anywhere but i doubt it. if you cant find any faults id look into getting a new amp and sub(s). __________________ 95 Civic Ex, FnF1's, Morimoto Mini h1 retrofit, GSR, bbk intake, BDL tb, 57trim t3/t4 8psi, 297whp 96 Civic Ex 2dr, G3 HID retrofit, FnF type 1's, Si cluster, Obd1 Z6 swap

August 29th, 2006, 09:46 PM	#11
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	get both new?! well wat if i just get lik a 500 watt amp, cuz i can get a 500 or 600 or 700 watt amp for freee from a store (wink) but anything else lik a new sub an all i'd rather just throw out. im more intrestest in speed now. unless i can fix this up cheep then ya __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 29th, 2006, 10:17 PM	#12
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 38,220 Blog Entries: 4 iTrader: 10 reviews	IMHO just go with a new amp...Since it is an el'cheapo amp it is prolly junk...IMHO when you buy stereo compnents you get what you pay for... Me personally I prefer bigger wires...So Anything over about 600-700 watts I go with 4 gauge...But I am old school like that... Your sub should be fine... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

August 30th, 2006, 12:12 AM	#13
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	k wat size amp shuld iget for the sub? __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 30th, 2006, 06:24 AM	#14
97TunedMustang Enthusiast Join Date: Jan 2006 Posts: 965 iTrader: 0 reviews	really to know for sure you should figure out what rms continuous wattage the sub can handle. id be willing to bet its probably less then half the peak so i wouldnt go over an amplifier rated any higher then 400rms wattage. and since its just the one sub connect it up to an amp that makes that wattage bridged. __________________ 95 Civic Ex, FnF1's, Morimoto Mini h1 retrofit, GSR, bbk intake, BDL tb, 57trim t3/t4 8psi, 297whp 96 Civic Ex 2dr, G3 HID retrofit, FnF type 1's, Si cluster, Obd1 Z6 swap

August 30th, 2006, 12:46 PM	#15
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	k, thnks you guys for the help, but i honestly have no idea about this whole sub and amp thing and the wiring, im better in the engine. and i dont wana take it to a place for them to look at then pay them for there advice. plus its all just added weight on my car anyway. so im ditching the sub and amp. thank you though for your help __________________ [SIGPIC][/SIGPIC] Acmillr loves me

August 30th, 2006, 03:23 PM	#16
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 38,220 Blog Entries: 4 iTrader: 10 reviews	No prblem...And I agree with ditching the sub and amp...Sell it and buy performance parts... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

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August 30th, 2006, 04:42 PM	#17
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	yea thats wat im gunna do. thnks though __________________ [SIGPIC][/SIGPIC] Acmillr loves me

September 11th, 2006, 11:55 PM	#18
320hpPony? Regular Join Date: May 2006 Location: jacksonville,FL Posts: 188 iTrader: 0 reviews	If it worked before (for a few montha at least),I would say it could be 1 of like 3 things.The amp turns on in protect mode right away right? Could be a bad ground connection(simplest thing it could be).No ground will pit the amp into protect. You could have possible burnt out the amp from extended use(cheapies tend to do that) OR you fried the voice coil in the sub.Yeah I hear it now,"you can't blow a 1000 watt sub with only like 300 watts!" Thats BS though!You can blow a sub with 100watts or even 15watts.Distortion will blow any speaker with ANY amount of power. Under driving a sub will blow it too(speaker say 200 watts RMS and you only give it 100watts). Questionid the sub's sound get progressivly worse?Did you get a burnt smell(even a little)?Is it a "dual voice coil"(DVC) sub? Did you check the amp's fuse(the one on the amp not the one on the power wire)? My bet is the sub is blown(one or both voice coils if it's a DVC).Since most ppl don't know distortion from the trunk rattling they don't know that it's happening(distortion).The fuse ON the amp is actually to protect the sub from distortion because it's on the pre-amp loop so when the input distorts or clips,it pops.It won't pop if the sub is distorting though from over/under driving. Good Luck Bro! MECP certified personell 14 years audio/visual experience __________________ Yeah, its ugly, but hot damn its fast! Got 2 camaro SS's and 1 LT1 vette under mah belt in it!

September 11th, 2006, 11:57 PM	#19
320hpPony? Regular Join Date: May 2006 Location: jacksonville,FL Posts: 188 iTrader: 0 reviews	By the way!!The gain knob IS NOT a VOLUME knob!!!!! Having this turned up too high will distroy a sub!!! I never turn it over 1/3 of the way up.You really need an oscilloscope to set it properly! __________________ Yeah, its ugly, but hot damn its fast! Got 2 camaro SS's and 1 LT1 vette under mah belt in it!

December 3rd, 2006, 10:19 PM	#20
daviddunn Newbie Join Date: Dec 2006 Posts: 2 iTrader: 0 reviews	This is a simple answer assuming that all of your wiring is ok. This might throw you off a little bit but matching impedance is what makes ALL subs work. Most people dont understand how impedance works, they just think a 1,000 watt amp works with a 1,000 watt speaker. NOT TRUE! Check the impedance on the speaker 1st, make sure that the impedance on the speaker isnt lower than what the amp is rated for. Example...you have an amp that is 2 ohm stable and pushes 600 watts at 2 ohms, and you connect this to a sub wired at 1 ohm. This is going to cause your amp to push between 750-800 watts now, which is going to cause it to shut down after a few minutes (in your case 20-30 mins) because its getting too hot too fast. Youre causing the amp to push out more power than its supposed to. Thats why its shutting off. Check the impedance, make sure that its not wired lower than whats recommended.

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