SounDigital SD1800.1D clamp testing, SPL testing, review.

[Lakota 5,000+ posts]

Well, I'm done talking now. I just feel that's highly unsafe to pull that much current through a single 1/0 wire. Hopefully nobody's car catches on fire.

 

[murilo 10+ year member]

Well, I'm done talking now. I just feel that's highly unsafe to pull that much current through a single 1/0 wire. Hopefully nobody's car catches on fire.

Not a smart comment for a EE student... I hope your fuse-less install don't catch fire either.

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(I dont use fuses also on my competition cars, and I hope mine don't catch on fire also)

 

[bose301s 5,000+ posts]

This thread makes me laugh. Lakota is a so called EE student who doesn't understand the concept of fault currents. Once the amp is drawing more current than the charger can provide the voltage on the charger will drop to the voltage of the batteries, the batteries will then also drop and the charger voltage will drop with it. Study a power system. If on a 12kv electrical line you get a direct fault the line will not sit at 120v RMS, it will drop down while delivering 10KA of fault current, this is the exact same situation as the battery charger experiences.

Basically the charger will act as a constant voltage source until the current draw exceeds what it can put out, then it will become a constant current source with the voltage dropping according to ohm's law.

 

[Annnarbor84 5,000+ posts]

Well, I'm done talking now. I just feel that's highly unsafe to pull that much current through a single 1/0 wire. Hopefully nobody's car catches on fire.

Just because you don't get it does not mean you should bash it. Their R&D is way more important than your thoughtless comments:fyi:

Start building small footprint amps than give us your findings

 

[basebalz13 10+ year member]

This thread makes me laugh. Lakota is a so called EE student who doesn't understand the concept of fault currents. Once the amp is drawing more current than the charger can provide the voltage on the charger will drop to the voltage of the batteries, the batteries will then also drop and the charger voltage will drop with it. Study a power system. If on a 12kv electrical line you get a direct fault the line will not sit at 120v RMS, it will drop down while delivering 10KA of fault current, this is the exact same situation as the battery charger experiences.
Basically the charger will act as a constant voltage source until the current draw exceeds what it can put out, then it will become a constant current source with the voltage dropping according to ohm's law.

im sorry but im going to have to go against you on this one, lakota knows alot abot this, hence why he can get a full burp off a sundown 3000 on a single 35 amp fuse. to me thats a good accomplishment. me and him have had numerous inteligent conversations about this sort of stuff. and he definatly knows what he i talking about.

 

[dtbrown 10+ year member]

What was your nominal load? I assume .5ohms because I see your impedance rise was only to 1.19ohms. Reason I ask is because this is more of a spl power test correct? What is the power that you can get from music on with a 2ohms nominal speaker load that the amp is rated for? 1800.1 is a 2ohms amp correct?

I like SD and think people including myself would like to see music power also. Besides that good test.

 

[bose301s 5,000+ posts]

im sorry but im going to have to go against you on this one, lakota knows alot abot this, hence why he can get a full burp off a sundown 3000 on a single 35 amp fuse. to me thats a good accomplishment. me and him have had numerous inteligent conversations about this sort of stuff. and he definatly knows what he i talking about.

You can go against me all you want but that doesn't change that what I said was right. It is basic principles of EE and Physics, no matter how much you go against it it doesn't make it untrue.

 

[Annnarbor84 5,000+ posts]

im sorry but im going to have to go against you on this one, lakota knows alot abot this, hence why he can get a full burp off a sundown 3000 on a single 35 amp fuse. to me thats a good accomplishment. me and him have had numerous inteligent conversations about this sort of stuff. and he definatly knows what he i talking about.

Your opinion! Myself or someone else could have the same conversation with him and disagree with what you say. Also when you know nothing and have a conversation with a self proclaimed know it all, you tend to eat every word said. Not saying this is the case, but just a thought.......

 

[basebalz13 10+ year member]

Just because you don't get it does not mean you should bash it. Their R&D is way more important than your thoughtless comments:fyi:
Start building small footprint amps than give us your findings

i dont think he was "bashing" just saying he doesnt agree with the single 1/0 inputs

 

[dtbrown 10+ year member]

Single 1/0 of wire is perfectly fine for 2000w.

 

[Annnarbor84 5,000+ posts]

i dont think he was "bashing" just saying he doesnt agree with the single 1/0 inputs

Did not say he was "bashing'. But he did not build this amp, and did not employ people to do hours of R&D either..... Unlike some cheap shit on the market, I highly doubt SD is putting out $1000 crap amps:laugh: I cannot wait to get my 8k, and get some numbers

 

[dtbrown 10+ year member]

I've pulled 300 amps through kicker 1/0 at 24" and wire was cold.

 

[tommyk90 5,000+ posts]

Single 1/0 of wire is perfectly fine for 2000w.

What about the 7k2d?

Or the bigger soundigital amps?

Pulling 400-500 amps through a single piece of 1/0 seems dangerous.

 

[Annnarbor84 5,000+ posts]

What about the 7k2d?
Or the bigger soundigital amps?

Pulling 400-500 amps through a single piece of 1/0 seems dangerous.

Again, I do not see any of these companies chancing a few cars catching on fire due to current flow issues. If I am wrong, hopefully it will be the car I wish I could get rid of that burns down

 

[dtbrown 10+ year member]

What about the 7k2d?
Or the bigger soundigital amps?

Pulling 400-500 amps through a single piece of 1/0 seems dangerous.

We've done it and wire was not even warm but we up to two runs of 1/0 and gained .2db and efficiency. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif