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Author Topic: Concert Lead ohmage  (Read 2977 times)

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Offline shibbz

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Concert Lead ohmage
« on: January 02, 2011, 08:53:12 am »
I remember thinking the redfaced concert leads could handle 2 ohms, but I read on this forum and others that it was unlikely that concert leads could safely handle it. Was I reading about the silverfave one? This catalog page says the redface can handle 2, I was just curious if the minimum load was different between the 2 models.
http://sunn.ampage.org/site/catalogs/1979/1979catp8.jpg
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Offline Isaac

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Re: Concert Lead ohmage
« Reply #1 on: January 02, 2011, 10:04:53 am »
No, the silver face Concert series definitely cannot handle anything below 4 ohms.
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Isaac

Offline george

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Re: Concert Lead ohmage
« Reply #2 on: January 02, 2011, 11:29:08 am »
It's called marketing - the red face concerts may have come with a larger power transformer  :? but the power amplifier design didn't change much compared to the black face models.

Check out the damage on this red face model - damage from driving a 2 ohm load?

http://cgi.ebay.com/SUNN-Concert-Bass-Amp-Amplifier-1976-Needs-Repair-Parts-/270680463808?pt=LH_DefaultDomain_0&hash=item3f05d019c0
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Offline shibbz

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Re: Concert Lead ohmage
« Reply #3 on: January 02, 2011, 12:41:42 pm »
Ew, yeah I was browsing that ad when it was still available. What section of the amp is that? pre-amp? power section? I'm no good with schematics?
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Offline george

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Re: Concert Lead ohmage
« Reply #4 on: January 02, 2011, 10:22:41 pm »
it's the power amp board.
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