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SAZ-3000D POWER TESTING

Started by sundownz, Apr 01 2007 04:55 PM

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82 replies to this topic

#61
platnum accord
Posted 28 June 2007 - 01:00 PM

platnum accord

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bump for updates?
2000 4dr Gold Honda Accord.-----223000Km's, and still running strong
Wiring: 2/0 Guage Welding Wire, + and - , 1 run.-----------HU: Sony Xplod .
Rca's: Scosche Industries.-------------------------------------Subbage: 2x Clarion PXW1552 .
Box: 7 Cubes total tuned to 29hz.----------------------------Amp: Sundown Aduio SAZ1500D.
Speakers: PG QX165 Components----------------------------Lighting: Neons tuckked under the dash.
Battery: Optima Red Top Group 35.---------------------------Alt: Dom Iraggi 200 amp ~70 at idle.

#62
sundownz
Posted 28 June 2007 - 01:46 PM

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Chad Hicks measured his at 2500 watts @ 2.5 ohms with 16 volts.

If I can modify my test box to hold the DD 9512s that I have I can get "somewhat" 12 volt ratings. My voltage will drop, if I'm lucky, to 11 volts or so... quite possibly less. If I get some time this weekend I'll try to round up a few more batteries to hook up to the trusty Pyramid power supply :)
- Jacob Fuller
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#63
lilmaniac2
Posted 28 June 2007 - 03:11 PM

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#64
lilmaniac2
Posted 28 June 2007 - 03:12 PM

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another note, the sub ran out of voicecoil before the amp ran out of juice, theres much more in there :)
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#65
sundownz
Posted 30 June 2007 - 03:36 PM

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Alrighty... so I abused the infamous Pyramid power supply a bit more today. Same setup I've been using for other clamp tests:

Pyramid 50 Amp Power Supply
8 AWG from supply to batteries
Kinetik 2400 Battery
Duralast 1000 CA Battery
2 AWG between batteries
4 AWG from batteries to amp
Fluke AC current / voltage meter
Sears DMM

Measurements:

65.8 volts
49.2 Amps
1.33 ohm calculated rise from 0.6 ohm DCR **
3237 Watts
14.4 volts rest dropping to 10.75 volts

** - Rise was higher than when I tested the 1500D, it was 1.08 ohms for that test. Presumably since my single run of 12 AWG speaker wire is heating up some much due to the extra power. I also did a few test runs at lower volume so the coils were warmer as well.

I really need a much more powerful power supply for this test. Pretty well simulates a stock Honda alternator or something, though!
- Jacob Fuller
- Owner, Sundown Audio
- Sundown Audio on FACEBOOK
- Associate, Stereo Integrity

#66
EmperorJJ1
Posted 10 April 2008 - 08:35 AM

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nice read...
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#67
twink
Posted 17 July 2008 - 09:54 PM

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is it okay to use a 350a anl fuse for a 3000d? or 250a fuse?

#68
sundownz
Posted 18 July 2008 - 07:56 AM

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is it okay to use a 350a anl fuse for a 3000d? or 250a fuse?


At 1 ohm you probably would not blow a 250-amp fuse on music. I wouldn't use a 350 as that wouldn't adequately protect the power wire.
- Jacob Fuller
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- Associate, Stereo Integrity

#69
SKEEMASK
Posted 19 July 2008 - 01:46 AM

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Thanks to Sean we did some power testing on the SAZ-3000D yesterday. Power testing was done on two RE MT 15" woofers, dual 1 ohm coils (0.7 ohm DCR) with a rise to around 0.87 ohms at our test frequency.

Power Output at Maximum Volume before Protection:

67.4 volts
77.1 amps
5196 watts

Power supply voltage was 16.5 volts at rest dropping to around 14.5 volts.

Our clamp meter ran out of steam at 400 amps so we measured efficiency at lower levels:

3294 watts @ 84% efficiency (252 amps draw)
3938 watts @ 81% efficiency (316 amps draw)
4424 watts @ 74% efficiency (392 amps draw)

We didn't have an electrical setup to run 12.8 volt testing available at this time.

So say I wanted to run 2 of these really bad but I had 2 dual 1ohm subs meaning I wanted to strap them @ 1ohm daily (music). Could it be done with a 250amp alt, a Deka Intimidator 9A78DT up front, 3-Deka Intimidator 9A31s near the amps and 2 runs of 2/0? Plus with that much current draw...would the 300amp anl support that 392 amp draw ur showing?

Edited by SKEEMASK, 19 July 2008 - 01:48 AM.

97' Thunderbird
4* 0.75" Kenwoold silk dome tweets
4* 4" Dayton midranges
4* Mach5 MLI-65 (6.5" midbass)
2* Loaded Fi BTL 12s 3mag versions (dual 1ohm)
a Pete Kulicki blowthrough (4th Order Compressed Chambered Reflex) design and build
1* Atomic AT-5000.1D
1* AudioControl DQXS (Active 3way front staging)
1* Phoenix Gold Ryval V754 (4ch amp)
1* Rockford Power T3002 (2ch amp)
1* MechMan 250amp alt ..........TEAM MechMan
1* Deka Intimidator 9A78DT (starter battery)
3* Deka Intimidator 9A31s (rear batteries)
2* 1/0 Knukonceptz runs
Kenwood eXcelon KVT-817DVD (active usb)

#70
Derrick824
Posted 19 July 2008 - 07:45 AM

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So say I wanted to run 2 of these really bad but I had 2 dual 1ohm subs meaning I wanted to strap them @ 1ohm daily (music). Could it be done with a 250amp alt, a Deka Intimidator 9A78DT up front, 3-Deka Intimidator 9A31s near the amps and 2 runs of 2/0? Plus with that much current draw...would the 300amp anl support that 392 amp draw ur showing?


That current draw is per amplifier. That setup can easily pull 800a+ of current. Four 1500s @ 1ohm each will be much easier on your electrical setup.
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#71
loudcav
Posted 19 July 2008 - 08:52 AM

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Thanks to Sean we did some power testing on the SAZ-3000D yesterday. Power testing was done on two RE MT 15" woofers, dual 1 ohm coils (0.7 ohm DCR) with a rise to around 0.87 ohms at our test frequency.

Power Output at Maximum Volume before Protection:

67.4 volts
77.1 amps
5196 watts

Power supply voltage was 16.5 volts at rest dropping to around 14.5 volts.

Our clamp meter ran out of steam at 400 amps so we measured efficiency at lower levels:

3294 watts @ 84% efficiency (252 amps draw)
3938 watts @ 81% efficiency (316 amps draw)
4424 watts @ 74% efficiency (392 amps draw)

We didn't have an electrical setup to run 12.8 volt testing available at this time.

So say I wanted to run 2 of these really bad but I had 2 dual 1ohm subs meaning I wanted to strap them @ 1ohm daily (music). Could it be done with a 250amp alt, a Deka Intimidator 9A78DT up front, 3-Deka Intimidator 9A31s near the amps and 2 runs of 2/0? Plus with that much current draw...would the 300amp anl support that 392 amp draw ur showing?

ya a fuse can allow mo0re than what its rated for then theres the option thats not supported by warrenty of not running a fuse
Team Sundown
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Im outa here like a heard of turtles

#72
EmperorJJ1
Posted 19 July 2008 - 11:48 AM

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what fuse rating does the amp ask for? I have fosgate 2/0 and about a foot inbetween the amp and battery SO im def fusing for the amp not the wire
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#73
loudcav
Posted 19 July 2008 - 12:03 PM

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the amp requires a 300 amp fuse
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Im outa here like a heard of turtles

#74
peter augustijnen
Posted 19 July 2008 - 04:17 PM

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i am looking for some amps for next year

i have read somewhere in these pages that the amps cant go above 16.5v , can they be modified to run at 18v?
i already have my batterybank



edit; i cant seem to find it anymore where i have read it
but the question stays the same , can they play at 18v

Edited by peter augustijnen, 19 July 2008 - 04:27 PM.

#75
ford302redneck
Posted 19 July 2008 - 04:59 PM

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Yes, They can play 18volts out the box.
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