MTTX 1501D: Not getting the power it i hoped

[psych0ticnemes1 5,000+ posts]

I apologize for the heading:

This could be for a number of reasons, Mainly, the fact that I am running 4 guage schoche wire right now, which is practically 5 guage wire. This is on a tock elec as well. I'm only using a 60amp fuse as well.

- I am running a JBL 180.2 to my fronts and the MTX 1501d to my Type R 12" at 2ohms.

- My head unit is a Pioneer DEH-6800MP. So my output voltage is only 2v or so.

- I just got the MTX amp back from mtx and it is benched at 1071 @ 2ohms at 12.5 volts.

- My car voltage bounces around 13.8-13.4 while on, whether my stereo is on or not.

- With my system on it never drops below 13.4

With the gain cranked above half - 3/4 with my sub-out at 0, It starts to move the R a bit but it seems like at that level, it should be able to move Two R's nicely...

Any ideas on what to do? When using my DMM, the voltage fluctuates and i can't get a good reading... i need a new one.

Thanks for the help

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[Ford302Redneck 10+ year member]

Amps do funny things are times....

Good luck with it tho

 

[Twistid 5,000+ posts]

mod it!

my 81000D pushes my L7's like no tommorow

 

[snoopdan 5,000+ posts]

I apologize for the heading: This could be for a number of reasons, Mainly, the fact that I am running 4 guage schoche wire right now, which is practically 5 guage wire. This is on a tock elec as well. I'm only using a 60amp fuse as well.

- I am running a JBL 180.2 to my fronts and the MTX 1501d to my Type R 12" at 2ohms.

- My head unit is a Pioneer DEH-6800MP. So my output voltage is only 2v or so.

- I just got the MTX amp back from mtx and it is benched at 1071 @ 2ohms at 12.5 volts.

- My car voltage bounces around 13.8-13.4 while on, whether my stereo is on or not.

- With my system on it never drops below 13.4

With the gain cranked above half - 3/4 with my sub-out at 0, It starts to move the R a bit but it seems like at that level, it should be able to move Two R's nicely...

Any ideas on what to do? When using my DMM, the voltage fluctuates and i can't get a good reading... i need a new one.

Thanks for the help

well lets figure this out.....if each type r is dual 4, wired to two ohms, and then both subs in parrallel for 1 ohm, your getting the 1k wattage divided by 4 into each coil....so 250 a coil maybe at maximum? not alot bro.

 

[cleanblaze01 10+ year member]

i had two of them pushing four subs, one for every pair i had them both running at 2 ohms but i was very dissapointed with them..i then bought a cadence dca 2500 and my sh** wangs now.

 

[psych0ticnemes1 5,000+ posts]

well lets figure this out.....if each type r is dual 4, wired to two ohms, and then both subs in parrallel for 1 ohm, your getting the 1k wattage divided by 4 into each coil....so 250 a coil maybe at maximum? not alot bro.

i only have it running to one 12" R //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

any other ideas man? i know you can help me out

 

[snoopdan 5,000+ posts]

i only have it running to one 12" R //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif
any other ideas man? i know you can help me out

ohh it sounded like ya had two...my bad bro.

dunno man, swap out with another amp next?

 

[psych0ticnemes1 5,000+ posts]

ohh it sounded like ya had two...my bad bro.
dunno man, swap out with another amp next?

i just got it back from mtx so i know it is good... i only have 2v preouts so it is possible that i need to crank the gain to get the power i need... i'm just afraid of setting it with a working dmm and finding out that i'm clipping the piss out of it. I can get the sub to wang now, doesn't show signs if distress (i baby my stuff for the most part) so i guess as long as the amp doesn't get past luke warm and i go easy on the sub, it'll be alright.

On a side note... This r 12" friggn wangs... to my ear it isn't much difference than the 15" R i had off of a concept cc-d1200. Must be my hatch... or the box?

Thanks though guys... next step is 0 guage wire and a bigger fuse!

 

[dru 10+ year member]

did you decrease the amp's input sensitivity? (i think that's the term, I'm not really sure)

my cheap hifonics was at 8v then i turned it down to around 1ish and it was louder. lol

 

[psych0ticnemes1 5,000+ posts]

did you decrease the amp's input sensitivity? (i think that's the term, I'm not really sure)
my cheap hifonics was at 8v then i turned it down to around 1ish and it was louder. lol

not exactly sure how, besides the gain //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[60ndown 10+ year member]

line driver helped me when i had that problem

 

[psych0ticnemes1 5,000+ posts]

line driver helped me when i had that problem

any ideas where i can get one of good quality for a good price? cardomain has one but i don't know how good it is

 

[60ndown 10+ year member]

any ideas where i can get one of good quality for a good price? cardomain has one but i don't know how good it is

as it happens i have a pg one i dont need, turns 2 v into 6 or 8 volts (dont remeber exactly) ill trade it for something or $60 shipped.people will tellyou its not the right way to go but it worked for me.

 

[psych0ticnemes1 5,000+ posts]

as it happens i have a pg one i dont need, turns 2 v into 6 or 8 volts (dont remeber exactly) ill trade it for something or $60 shipped.people will tellyou its not the right way to go but it worked for me.

i wouldn't know how to wire it... not in a big hurry. all i have to trade in an infinity referance 12

 

[60ndown 10+ year member]

i wouldn't know how to wire it... not in a big hurry. all i have to trade in an infinity referance 12

rca from hu to back of line driver, rca from line driver to amp. positive and negative to line driver-done. easy hook up. ill take the infinity for it