i want to run a 10" dual voice sub off of one channel (4ch amp)... is this possible?
Replies (10)
Victor on 09/4/2007 01:54:27
say more... specs on sub and amp....
Ryan on 09/4/2007 02:05:49
i just want to know how to wire (from amp to sub) 2 pioneer 10's 300W RMS, dual 4 ohm voice coils running on an mtx 4 ch (600 W x 2 @ 4 ohm) amp but i wanna run the 2 of them off only 2 of my 4 channels
and i'm also already running an 1200W explod amp and im worried when i put in another 1200 W amp, that ill fry my alternator... any opinions?
swez on 09/4/2007 10:37:05
It depends on the amp(s) you have now. (Model number?)
If this amp has a Low Pass Filter, (LPF) network on the rear channels, (3 & 4) you can use them to feed the subs as mentioned. If there is no LPF on these channels, you can add them manually or if the HU used has this feature, you can do it that way too. (HU brand and model #?)
This Sony amp mentioned, what is the model # for it and how is it being used right now?
Tech Tip: If we want to determine the max electrical load of a given amp, we add up the fuses and figure out how much current draw is possible at full power.
FYI: Sony is notorious for over-stating power output. They commonly use Peak or Peak to Peak wattage ratings which are totally bogus. Knowing the fuse ratings and the type of amplifier design, (Class D or Class A/B) we can often determine the likely power draw and approximate output to a given speaker load.
Say more about your plans, after you have reviewed the following post:
http://www.clubknowledge.com/Car_Audio_FAQ/?g99_92
Thank you for reading that link... we can help folks when they give complete details up front. If not, we have to pull teeth to drag it out of those who neglect the obvious answers. SMILE
Swez
Ryan on 09/4/2007 20:00:53
Alright, here's my story... Am i a teach my self and learn from my mistakes kinda guy and right now i am running an MTX T4500 15" sub powered by my Xplode model # XM-2002GTR (class a/b). the amp is only running the one mtx sub right now and the power and quality is ok but not great. So i went and bought 2 Pioneer 10's model # TS-W257D4 and an MTX 4 ch amp, model # TC4004 class a/b.
what i plan on doing now is dedicating the xplod to running the pioneers while the MTX rear channels would power power the 15" (dual voice
coil) set to low pass while the front channels would power 2 JVC 6x9's (model # unknown) on either high pass or full range....
so thats my gear and heres my question how would i wire (from amp to sub) each pioneer dual voice sub off only one channel? do i run 2 wires from the same channel to each side of the sub or do i maybe bridge the channel at the sub?
and as for power usage, the explod has 2 40 amp fuses and the mtx has 2 @ 30 amps. and by the way i dont know if u can read this from my profile or even if it matters but the vehicle is a 1992 Ford explorer.... would adding a capacitor help offset over stressing the battery/alt by running 2 amplifiers?
i also own a phoenix gold 4 channel amp model Octane R.0:4 500 W (class a/b). i bought it a year and a half ago but shelved it when i discovered it didnt have enough power to run my 15" but now im wondering if i should get it into my config now and lose the explod
but now that you know what i have and what i have planned any advise on configuring my system would be much appreciated.
i dont know if thats all you need to know but sorry for not being as detailed earlier.
Ryan
swez on 09/5/2007 10:09:49
That Sony amp is rated just right for your Pioneer 10's. Set your LPF between 80 -120 Hz and adjust as needed. Wire each sub for 2 ohms each and run 1 sub per channel. (Both coils in parallel = 2 ohms)
As for the MTX 15", this is a 4 ohm SVC sub, (T4515-04) and rated at 250 Wrms. Here, you bridge channels 3 & 4 on your MTX TC4004 amp and set the LPF to between 60-80 Hz. Using a ported enclosure tuned at 32 Hz., would give you the best deep bass possible for this sub. (2.5 cf)
http://www.mtx.com/caraudio/products/subwoofers/thunder4500.cfm
Got all that?
Swez
Ryan on 09/8/2007 14:45:07
swez on 09/8/2007 21:41:10
Well? I see a post notation, but no details of the post. How'd you make out so far?
Swez
Ryan on 09/11/2007 01:13:24
i cant install the 10's and the new amp yet, i still need enclosures and wiring and im too broke to get that til i get payed. but thanks a lot you cleared that up for me nicely.
but back to power demand of the 2 amplifiers... in your opinion should i worry about having electrical problems like fryin the alternator/battery? you mentioned something in one of your earlier posts about using the fuse ratings to get a rough idea of power usage... the sony amp has 2 40 amp fuses and the mtx has 2 30 amp fuses. and if i am going to run into trouble there is there anyway to offset it beforehand? by using a capacitor for example?
swez on 09/11/2007 06:56:11
Ryan,
Most guys that come here for assistance have tight budgets and we have learned to help peeps stretch their $$'s well. You're in good hands.
OK, let's discuss power consumption issues a bit more. The Sony amp will draw the most power because of the way it will be used... for powering subs. Bass amps work harder and tend to draw more power, (Watts) because of the frequencies they work at. This is the amp that will need a little "monitoring" initially.
This amp can be set up to limit power draw on the electrical system if required. We can show you how to do this when you get to that stage. The worst case here, adding a 2nd battery to support the sub amp power demands would be a good option. (Forget the Surge Cap... they are not a good investment for the "daily driver" system noted here)
BTW, what is the vehicle we are working with here? (Make & model) Knowing that and the stock electrical package it has will help determine how to best use your gear safely w/o fear of burning up an expensive ALT.
Another way to save on power consumption, would be to delete the 15" sub when the 10's are ready to install. If you have never used 10's before, you'll be pleased to hear how well a pair of 10's can deliver solid bass when they are powered adequately and used in a well designed box. (Yes, you can use all 3 subs if you wish, but a well designed 2 x 10 system will deliver solid bass too)
Also, consider selling or trading that Phoenix Gold Octane amp. It's a good amp for mids/highs, but the MTX 4 channel amp mentioned is a good fit here. Convert the cash you get from the PG amp to finish the rest of your system. Depending on how clean it is, it can fetch about $75.00 to the right person.
Finally, are you able to build a box for your 10's? (Proper tools and know how?) If yes, that would cost about $40.00 in materials to build. Home Depot will cut your panels to size if you buy a full sheet of 3/4" MDF. Some charge a small fee for cutting, but if you catch them on a slow night, they may do it for free. (I've had them do this a few times and they only charged like $2.00 more for cutting)
Swez
Ryan on 09/16/2007 15:54:03
well ive got some cash now, still sort of putting that off. but now i'm thinking of taking the 10's back to best buy (still have 2 weeks left on the 30 day return period) i would rather keep them but i think getting rid of the 15" would be very difficult... how many ppl are going to want to buy that massive thing.... anyways i'll keep ya posted.
thanks man
Replies (10)
Victor on 09/4/2007 01:54:27
say more... specs on sub and amp....
Ryan on 09/4/2007 02:05:49
i just want to know how to wire (from amp to sub) 2 pioneer 10's 300W RMS, dual 4 ohm voice coils running on an mtx 4 ch (600 W x 2 @ 4 ohm) amp but i wanna run the 2 of them off only 2 of my 4 channels
and i'm also already running an 1200W explod amp and im worried when i put in another 1200 W amp, that ill fry my alternator... any opinions?
swez on 09/4/2007 10:37:05
It depends on the amp(s) you have now. (Model number?)
If this amp has a Low Pass Filter, (LPF) network on the rear channels, (3 & 4) you can use them to feed the subs as mentioned. If there is no LPF on these channels, you can add them manually or if the HU used has this feature, you can do it that way too. (HU brand and model #?)
This Sony amp mentioned, what is the model # for it and how is it being used right now?
Tech Tip: If we want to determine the max electrical load of a given amp, we add up the fuses and figure out how much current draw is possible at full power.
FYI: Sony is notorious for over-stating power output. They commonly use Peak or Peak to Peak wattage ratings which are totally bogus. Knowing the fuse ratings and the type of amplifier design, (Class D or Class A/B) we can often determine the likely power draw and approximate output to a given speaker load.
Say more about your plans, after you have reviewed the following post:
http://www.clubknowledge.com/Car_Audio_FAQ/?g99_92
Thank you for reading that link... we can help folks when they give complete details up front. If not, we have to pull teeth to drag it out of those who neglect the obvious answers. SMILE
Swez
Ryan on 09/4/2007 20:00:53
Alright, here's my story... Am i a teach my self and learn from my mistakes kinda guy and right now i am running an MTX T4500 15" sub powered by my Xplode model # XM-2002GTR (class a/b). the amp is only running the one mtx sub right now and the power and quality is ok but not great. So i went and bought 2 Pioneer 10's model # TS-W257D4 and an MTX 4 ch amp, model # TC4004 class a/b.
what i plan on doing now is dedicating the xplod to running the pioneers while the MTX rear channels would power power the 15" (dual voice
coil) set to low pass while the front channels would power 2 JVC 6x9's (model # unknown) on either high pass or full range....
so thats my gear and heres my question how would i wire (from amp to sub) each pioneer dual voice sub off only one channel? do i run 2 wires from the same channel to each side of the sub or do i maybe bridge the channel at the sub?
and as for power usage, the explod has 2 40 amp fuses and the mtx has 2 @ 30 amps. and by the way i dont know if u can read this from my profile or even if it matters but the vehicle is a 1992 Ford explorer.... would adding a capacitor help offset over stressing the battery/alt by running 2 amplifiers?
i also own a phoenix gold 4 channel amp model Octane R.0:4 500 W (class a/b). i bought it a year and a half ago but shelved it when i discovered it didnt have enough power to run my 15" but now im wondering if i should get it into my config now and lose the explod
but now that you know what i have and what i have planned any advise on configuring my system would be much appreciated.
i dont know if thats all you need to know but sorry for not being as detailed earlier.
Ryan
swez on 09/5/2007 10:09:49
That Sony amp is rated just right for your Pioneer 10's. Set your LPF between 80 -120 Hz and adjust as needed. Wire each sub for 2 ohms each and run 1 sub per channel. (Both coils in parallel = 2 ohms)
As for the MTX 15", this is a 4 ohm SVC sub, (T4515-04) and rated at 250 Wrms. Here, you bridge channels 3 & 4 on your MTX TC4004 amp and set the LPF to between 60-80 Hz. Using a ported enclosure tuned at 32 Hz., would give you the best deep bass possible for this sub. (2.5 cf)
http://www.mtx.com/caraudio/products/subwoofers/thunder4500.cfm
Got all that?
Swez
Ryan on 09/8/2007 14:45:07
swez on 09/8/2007 21:41:10
Well? I see a post notation, but no details of the post. How'd you make out so far?
Swez
Ryan on 09/11/2007 01:13:24
i cant install the 10's and the new amp yet, i still need enclosures and wiring and im too broke to get that til i get payed. but thanks a lot you cleared that up for me nicely.
but back to power demand of the 2 amplifiers... in your opinion should i worry about having electrical problems like fryin the alternator/battery? you mentioned something in one of your earlier posts about using the fuse ratings to get a rough idea of power usage... the sony amp has 2 40 amp fuses and the mtx has 2 30 amp fuses. and if i am going to run into trouble there is there anyway to offset it beforehand? by using a capacitor for example?
swez on 09/11/2007 06:56:11
Ryan,
Most guys that come here for assistance have tight budgets and we have learned to help peeps stretch their $$'s well. You're in good hands.
OK, let's discuss power consumption issues a bit more. The Sony amp will draw the most power because of the way it will be used... for powering subs. Bass amps work harder and tend to draw more power, (Watts) because of the frequencies they work at. This is the amp that will need a little "monitoring" initially.
This amp can be set up to limit power draw on the electrical system if required. We can show you how to do this when you get to that stage. The worst case here, adding a 2nd battery to support the sub amp power demands would be a good option. (Forget the Surge Cap... they are not a good investment for the "daily driver" system noted here)
BTW, what is the vehicle we are working with here? (Make & model) Knowing that and the stock electrical package it has will help determine how to best use your gear safely w/o fear of burning up an expensive ALT.
Another way to save on power consumption, would be to delete the 15" sub when the 10's are ready to install. If you have never used 10's before, you'll be pleased to hear how well a pair of 10's can deliver solid bass when they are powered adequately and used in a well designed box. (Yes, you can use all 3 subs if you wish, but a well designed 2 x 10 system will deliver solid bass too)
Also, consider selling or trading that Phoenix Gold Octane amp. It's a good amp for mids/highs, but the MTX 4 channel amp mentioned is a good fit here. Convert the cash you get from the PG amp to finish the rest of your system. Depending on how clean it is, it can fetch about $75.00 to the right person.
Finally, are you able to build a box for your 10's? (Proper tools and know how?) If yes, that would cost about $40.00 in materials to build. Home Depot will cut your panels to size if you buy a full sheet of 3/4" MDF. Some charge a small fee for cutting, but if you catch them on a slow night, they may do it for free. (I've had them do this a few times and they only charged like $2.00 more for cutting)
Swez
Ryan on 09/16/2007 15:54:03
well ive got some cash now, still sort of putting that off. but now i'm thinking of taking the 10's back to best buy (still have 2 weeks left on the 30 day return period) i would rather keep them but i think getting rid of the 15" would be very difficult... how many ppl are going to want to buy that massive thing.... anyways i'll keep ya posted.
thanks man
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