What is the lowest impedance i can wire a tc-3000?

[innsanes 10+ year member]

From looking at tc spec wiring diagram, the lowest on a quad coil is 1.4 ohms.

My amp is a sundown 1500d. I want to get as close as to 1ohm or .5 ohm to get maximum power. Of course i will watch my gains. At 2 ohm the amp is rated 800 rms which might not make the tc3k run at full potential. any help is appreciated.

Click to read more...

 

[innsanes 10+ year member]

bump, some help please

 

[RAM_Designs 5,000+ posts]

with quad 1.4 coils you can run the sub at .35, 1.4, or 5.6 ohms...I'd suggest going with 1.4, for your car's sake.

 

[Seattle206 10+ year member]

i got same sub runnin it at 1.3ohms (amp rated 2k at 1.3) and gains set to 1700 watts. It hits clear and hard. Im happy with it. I agree with ryan and say do 1ohm. The 2ohm at 800watts def isn't its full potential.

 

[innsanes 10+ year member]

the tc site dint show anything about .35 ohm wiring. But im probably going to do 1.4 ohm to be safe.

 

[innsanes 10+ year member]

just curious how many watts will i get at 1.4 and .35 ohms on my sundown?

 

[Seattle206 10+ year member]

The amps 1500 at 1 ohm. Ballparking it but I'd say 1200-1300 at 1.4. and I wouldn't do .35 on that amp just to be safe. No clue what the watts are at that impedance.

 

[dragnix 5,000+ posts]

don't do .35 unless you have the electrical to back it up. I don't think you do

 

[S_B 10+ year member]

on a STRONG electrical at .35 you are looking at 1748W. But it will also start going into protect.

 

[Kold_Killa 10+ year member]

on a STRONG electrical at .35 you are looking at 1748W. But it will also start going into protect.

yes... exactly 1748 //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

 

[icpurplepplalot 5,000+ posts]

on a STRONG electrical at .35 you are looking at 1748W. But it will also start going into protect.

You'd get more power than that out of a sundown at .35, that was a test Jacob did with a completely stock electrical

 

[icpurplepplalot 5,000+ posts]

results from the sundowns...

Test Vehicle.. mine.. 05 aveo..

RMS clamp and dmm, as seen in the 12" test session..

This testing includes recent results, and not so recent..

woofers used.. 2 Mags (1.9 dcr per coil), 2 FI Q 12's (1.4 dcr per coil)

either used 1 sub or both of the pair for loads..

pure 60hz sine was used to tested.. just under audible clipping

1 amp, single 1000ca everstart maxx, factory alt

4 ohm nominal = 518 watts @ 88% efficiency (voltage fell from 14.3v, to 14.0v)

2 ohm nominal = 948 watts @ 85% efficiency (voltage fell from 14.3v, to 13.6v)

1 ohm nominal = 1510 watts @ 78% efficiency (voltage fell from 14.3v, to 12.4 volts

.5 ohm nominal = 1615 watts @ 72% efficiency (voltage fell from 14.3v, to 11.8v)

.35 ohm nominal = 1748 watts @ 67% efficiency (voltage fell from 14.3v, to 11.4v)

amplifier was protection happy @ .35 with tones, and some music.

IMO.. one 1500d should be limited to 1 ohm nominal use in factory electrical systems.. for the sake of the car.. not the amp

now... to have fun with some juice..

1 amp, single 1000ca everstart maxx, 1 Eagle Picher 12a5000, factory alt

4 ohm nominal = 520 watts @ 88% efficiency (voltage fell from 14.3v, to 14.1v)

2 ohm nominal = 960 watts @ 84% efficiency (voltage fell from 14.3v, to 13.7v)

1 ohm nominal = 1635 watts @ 75% efficiency (voltage fell from 14.3v, to 12.8 volts

.5 ohm nominal = 1890 watts @ 71% efficiency (voltage fell from 14.3v, to 12.8v)

.35 ohm nominal = 2245 watts @ 65% efficiency (voltage fell from 14.3v, to 12.8v)

amplifier did fine @ .35 with tones and music with the added battery

2 amps strapped, with both batteries (for the sake of not typing it over and over... voltage drops from 14.3v, to 12.8 the entire test... lol

4 ohm strapped = 1900 watts @ 82% efficiency

2 ohm strapped = 3150 watts @ 72% efficiency

1 ohm strapped = 3740 watts @ 68% efficiency

.5 ohm strapped = 4425 watts @ 65% efficiency

.35 ohm strapped = 5415 watts @ 62% efficiency

amps would only tolerate a VERY short burp @ .35..

Those are Jacob's tests

 

[innsanes 10+ year member]

nice, i do got the electrical to back it up //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif but i dont think the tc3k can hang with that much power

 

[S_B 10+ year member]

You'd get more power than that out of a sundown at .35, that was a test Jacob did with a completely stock electrical

I posted those results do to not knowing his electrical setup. I Figure it would be better to lowball it.

 

[icpurplepplalot 5,000+ posts]

I posted those results do to not knowing his electrical setup. I Figure it would be better to lowball it.

I gotcha //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif