SAZ-1500D POWER TESTING

[sundownz 197]

That will be okay for music.

Two 1500s can draw up to 320 amps but you will seldom be calling for that much power on music.

[mazzasec 0]

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..

So those test were with single 1000ca everstart maxx, 1 Eagle Picher 12a5000, batteries and a stock 80 amp alt?

Edited June 20, 2008 by SEC

[3stagevtec 2]

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

at 1ohm, the efficiency is 68%.. would the efficiency of the amp remain at 68% throughout its POWER range? e.g. supposed i strap a pair of 1500Ds, but only use around 2500-3000Wrms from them..

would using less power yield a greater efficiency?

thanks

[sundownz 197]

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

at 1ohm, the efficiency is 68%.. would the efficiency of the amp remain at 68% throughout its POWER range? e.g. supposed i strap a pair of 1500Ds, but only use around 2500-3000Wrms from them..

would using less power yield a greater efficiency?

thanks

That is 1 ohm strapped - or 1/2 ohm per amp.

Efficiency will be roughly the same at lower power levels - although, likely marginally higher in the low 70s.

[3stagevtec 2]

^thanks..

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

that Eagle Picher 12a5000 is one helluva battery!

[twink 0]

what fuse rating will I used if I'm running strapped 1500s for music? 275a per amp is a lot

[sundownz 197]

The internal fusing is 160-amps per amp, so you can match that for 2 ohm strapped (1 ohm per amp).

[jracer 0]

at 12 volts.. what voltage are you getting on the output with the speakers disconnected ?? with a 45 hz tone .....

[sundownz 197]

Should see ~38 volts or so if the crossovers aren't in the way.

[sundownz 197]

Consolidated high and regular voltage testing threads today.

[turn it up 1]

in the strapped amp test, was that .35 per amp for a nominal load of .70 or .35 nominal, if so that is crazy. .175 ohms per amp, ouch.

It was 0.35 nominal, or 0.175 per amp. I don't recommend doing that

Was this .175 per amp after rise say or started at .175

[bobc04 1]

so wait... idk where my last thing went but can we do .5 ohm no problem?

[Soapbox 7]

After all of my reading. I knew I had read most of the pile. But then Jacob pointed me this direction. Thanks. The Aveo and the Fit are in the same sub compact class.

No worries.

Soapbox