Are HUs 2 ohm stable or 4 generally?

[i like guns 10+ year member]

Are almost all components or stocks 4 ohm VC? And what does the HU put out typically? 2 ohm or 4?

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[JimJ 5,000+ posts]

Don't bother with it...you may be getting 10-15W RMS out of a head unit, and almost all @ 4 ohms. Going to external amplification really is a night and day difference in dynamic range and quality //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif