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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Is this too much Electrical Load??



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      06-07-2019, 09:36 PM   #1
D-e93
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Is this too much Electrical Load??

Hi guys, planning on buying this amp for the mids and highs and im not sure if my alternator and/or battery will have problems from the new load:

This is the amp i want to get and im wondering why this amp at this price point havent seen more installs on this forum.
https://www.zapco.com/st-6x-dsp


My current setup is on a 2009 E93 328i:

Speakers
Highs: SEAS Prestige 27TFFNC | 80Watts RMS
Mids: Morel MSW 114 Shallow Classic | 150Watts RMS
MidBass: Morel MSW 265 Shallow Classic | 180Watts RMS
Sub: FIQ 12" | 1000Watts RMS

Amps
Crescendo 1500RMS | gains on 50%
JL Audio 600/6 | gains on 35% Highs/Mids and 50%Midbass

Im no experts but would say im pulling around 1000 watts. Sofar I havent had any issues with electrical.

You guys think the new amp being class AB and less efficient will have problems with the alternator?

Any info is appreciated.. Thanks!
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      06-07-2019, 10:20 PM   #2
Ethan Skinner
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Dunno but impressive audio setup
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      06-08-2019, 12:10 AM   #3
ctuna
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The pro's with shops that use to hang out here say you could
go up to 2000 watts without problems.

Zapco's used to be one VP Electricity favorite choices.
I thought they varried the Supply voltages to make them
more efficient. which is actually class G.

http://www.e90post.com/forums/showthread.php?t=324214

They take a lot of space though.

Why not a Helix DSP 6 or V8.

I was skeptical of Class D amps as you know if you have a xd 600/6
they are fine.

Last edited by ctuna; 06-08-2019 at 12:19 AM..
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      06-08-2019, 02:06 PM   #4
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ctuna always comes through!

Thanks for the info ctuna. Great link provided, multiple zapcos installed!. Seems like VP Electricity likes the zapco brand which is very reassuring. Interesting info on the Class-G amps update so i think this will be efficient enough. Ill prob be hitting just under the 2k watt threshold. The Helix does looks amazing but its like twice the price. The DSP seems on another level but I think the zapco dsp will suffice. I have the space ready for this amp. The zapco amp build looks very solid, class G amps ftw, lol.

The JL 600/6 xd is a good amp and has served its purpose but it is starting to "crackle" when adjust its levels and sometimes while just plain driving. I think its the dust getting into the components. Not sure but it will be up for sale at a good price soon.
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      06-08-2019, 03:48 PM   #5
ctuna
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You could always take the case off and blow it off.
I had an old Kenwood Home stereo receiver that was
30 years old . My first stereo it had totally died took it
apart blew out the dust and it came right back to life.

The Helix dsp/amps I thought run in a similar price range as
the Zapco which which has long been considered a upper level
boutique brand.

Might be the 2k max level but your normal running wattage
will be less unless you like to slam it.
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