Help on car amp and sub

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Flame

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Hi

I have a Starsound Rogue 6600w connected to a Targa TG -1202D2 12" DVC 650x2 sub at 1 ohm.

The amp popped a "hex output ic" as technician told me and fixed it...and popped same ic in 30mins after re-fitment.

Can the sub cause this what may be faulty? And is their no protection on the amp for something like that?

And is it fine to connect the sub on 1 ohm for everyday use?

thx
 
In general running lower ohms e.g. at 1 ohm makes the amp work harder. The amp will draw more current at the lower impedance and generate more power provided that the amp is capable of running at that 1 ohm impedance.

Normally the sub is the first to go if there is not enough current or the amp was not meant to run at the 1 ohm impedance. It could be amp is taking strain at 1 ohm.

As to why it's getting damaged extra heat?
 
Last edited:
well...its 1 ohm stable via their specs (the amp)
 
And the amp supports DVC subs?

I blew a few ic's and power transistors from trying to push the amp too far (also at 1 ohm stable). I repaired it myself and it was definitely more than one component that needed to be replaced - may the problem was fixed entirely?
 
Run the sub at 4 ohm i.e. wire the coils in series. The amp should run a lot cooler and test its reliability from there.

Running at 1 ohm also requires bigger power supply which is not really suitable for everyday.
 
I cannot see how you can run a DVC SUB at 1 Ohm, unless they are 2 Ohm rated coils connected in parallel.
Take a multemeter to the sub & measure the resistance on each, if they are 4 Ohm coils, measuring lower, you sub could be faulty

If the same IC popped again, there must be something else causing it in the amp.
 
Nisho said:
I cannot see how you can run a DVC SUB at 1 Ohm, unless they are 2 Ohm rated coils connected in parallel.
Take a multemeter to the sub & measure the resistance on each, if they are 4 Ohm coils, measuring lower, you sub could be faulty

If the same IC popped again, there must be something else causing it in the amp.
Click to expand...

You can't measure impedance with a multimeter. And resistance has as much to do with this as the colour of the amp.

If the same setup is consistently popping amps then change the setup. And at a 1 Ohm load that amp is working very very hard.
 
Last edited:
Flame said:
Hi

I have a Starsound Rogue 6600w connected to a Targa TG -1202D2 12" DVC 650x2 sub at 1 ohm.

The amp popped a "hex output ic" as technician told me and fixed it...and popped same ic in 30mins after re-fitment.

Can the sub cause this what may be faulty? And is their no protection on the amp for something like that?

And is it fine to connect the sub on 1 ohm for everyday use?

thx
Click to expand...
The amp output is 1200w rms @1ohms and that targa sub 650x2 = 1300 w rms
You need a big amp
 
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