subs cut out

[grooverider 10+ year member]

hey Im running 2 pioneer t301r's and a pioneer 800w mono [gm7100m]

If i set the gain to "normal" which is like 1/4 turn. I cant turn the volume up all the way without it cutting out. I can beat @ like 28vol but 29 itll bump 2x then cut out. anything above it just cuts out

wtf? bad ground?

btw 4ga wire im using

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[cobra65427289 10+ year member]

Is the protect light on the amplifier turning on when this happens?

 

[grooverider 10+ year member]

No I dont believe so. They are both SVC subs. If I hook one up, I can wang the **** out of it. no prob so bad that I could smell something. I was thinking that was too much and ill hurt the coil, so i rehooked both up

here are the specs of sub and amp...

subs specs

Product Type Car subwoofer

Weight 1.5 lbs

Dimensions - Diameter 9.8 in

Speaker System

Speaker Type Passive

Speaker Diameter 12"

Nominal (RMS) Output Power 150 Watt

Max (RMS) Output Power 800 Watt

Response Bandwidth 20 - 4000 Hz

Input Impedance 4 Ohm

Sensitivity 91 dB

Magnet Type Strontium

Connectivity Technology Wired

Speaker System Details

Speakers Included Car subwoofer driver - 12" - 120 Watt - 20 - 4000 Hz - 4 Ohm - wired

Driver Details Car subwoofer driver : 1 x subwoofer driver - 12" - Injection-Molded Polypropylene (IMPP)

Cutout & Mounting Dimensions

Diameter 10.9 in

Depth 5.7 in

Universal Product Identifiers

Part Number TS-W301R

AMP specs

Pioneer Model GM-7100 800 WATTS

Mono Power Amplifier with 800 Watts Max. Power

Looking for an amplifier to drive your subwoofers? You need to get your hands on the new GM-7100M Mono Amp. It powers out 360 watts when driven at 2 ohms - drive it hard, and you can even get up to 800 watts maximum. Plus, it delivers some important features for fine-tuning your system, namely selectable 50Hz bass boost and a built-in crossover. It also comes with oversized power terminals, speaker level inputs, and a wide input level of 200mV to 6.5V.

2-Ohm Mono Stable

The GM-7100M is built to efficiently handle low-impedance loads, down to 2 ohms. That's perfect for a pair of 4-Ohm Woofers like the new Pioneer TS-W306C's, or running a Dual Voice Sub like the TS-W306DVC. And it doesn’t just “handle” them: it continually monitors and adjusts the power supply voltage rails, for continuous, clean output. Among other things, this means that you can connect it to two subwoofers.

Variable Crossover (40 ~ 240Hz)

For added flexibility, the variable crossover lets you set the levels at which higher-frequency signals will be filtered out, so that the remaining lower-frequency signals get sent to your sub(s). Where they belong. This optimizes your system’s efficiency and delivers the best possible sound quality. This step-up feature is a really useful tool for fine-tuning your system.

Selectable Bass Boost

Bass boost gives you more control over how your music sounds. It's set at 50Hz, ideal for tuning in some more thump from your subwoofers. And because this is selectable bass boost, you can set the level at 0dB, 6dB, or 12dB, whichever sounds best to you.

PIONEER GM-7100

 

[grooverider 10+ year member]

im running both sets of ground, and power from each sub to the corresponding spots. so wtf? thats 2ohm

 

[grooverider 10+ year member]

bump

 

[grooverider 10+ year member]

no one?

 

[grooverider 10+ year member]

I just made a better ground, It plays a little harder, but it still cuts off at high volume!! why!?

 

[grooverider 10+ year member]

..I still have this problem. wtf could it be?

 

[grooverider 10+ year member]

bump

 

[grooverider 10+ year member]

do you think my battery is weak or somethin?

 

[grooverider 10+ year member]

and i dont have a protect light on the amp. sucks eh?

I can unhook one subs and wANG the shit out of one sub to where it starts to smell...

so why cant i do that with both

 

[funkyab 10+ year member]

check your ground. Test your voltage when you are playing at the volume that it cuts out at and see what kind of drop you are getting. Set your gains properly.

 

[MTX520 10+ year member]

not enough voltage from HU's pre outs i believe...

 

[grooverider 10+ year member]

how do I test the volts? I have either 4 or 5v preouts.... kenwood excelon x493

 

[funkyab 10+ year member]

you might be clipping the amp as well and it is protecting itself. I would lean towards this as you are running so little power.