Jump to content
Sundown Audio

Why you need big electrical to run at less than rated impedance


Recommended Posts

So this is just a little explanation of why when we run at .5ohm it takes a big alternator or 2 and a few batts.

If anyone has ever had a 2ohm stable amp and tried to run at 1ohm without sufficient electrical they have probably experienced amp shutdown at volume, but most people don't understand what's going on electrically. The problem is called voltage dip, and it occurs when impedance is very low. As the impedance decreeces the curent increeces, and consistently voltage drops, the problem is literally that the impeeadece is so low the electrons are moving around the circuit so quickly that it's a near short circuit. And as most of us know the way to avoid this is to get a bigger alternator. The biger alternator can provide the curent the amp is asking for to combat voltage dip. The moral of the story is either beef up the electrical or raise your impeadance!

Link to comment
Share on other sites

just wondering what made u want to write about this subject?

2002 ford focus hatch

pioneer DEH-P8400bh

infinity kappa 6.5 components front and rear

XS Power D1200

Shuriken BT-100

audioque 120.4

2 15 inch audioque HDC3 D2

2 audioque 2200d

big 3

mechman 220a alt with external regulator

479-418-3056

Link to comment
Share on other sites

Bashing lol.....what about amperage sir? Its not voltage the amp craves its the amperage correct?

TEAM DC AUDIO

VEHICLE:98 chevy tahoe 2wd 3-4 drop

HEADUNIT:alpine 9886

PREAMP:arcaudio

FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door

KICKPANELS:jl audio 5 1/4

REAR DOORS: dd components 6 1/2s

HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors

SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV

SUB AMP: 2-dc7.5s

ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket

WIRE:10-runs 0g front to back

BATTERIES:6-d1400s

TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   1 Member, 0 Anonymous, 888 Guests (See full list)

×
×
  • Create New...