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Old 5th September 2013, 06:09 PM   #1
msj965 is offline msj965  United States
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Default Shed a little light pls:)

What is the best way to set my amps speaker output impedance. I have a 6 ohms tower speakers but I don't know if 8 or 4 ohms will be the setting. I dont wanna fry my amps. thanks

ann
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Old 5th September 2013, 06:21 PM   #2
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Setting the amp to 4 ohms would be the safest, if that is your main concern. Assuming it's not a valve amp.
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Old 6th September 2013, 10:17 AM   #3
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I'd say set it to 4ohm, sounds like it is a valve amp - we probably wouldn't be having this discussion if it were solid-state.

6ohm nominal will likely drop to 4ohm in places, so I'd consider the 4ohm tap more appropriate.
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Old 6th September 2013, 03:22 PM   #4
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Id set to 4 ohm

The onset of THD is more gradual (so they say) and its safer for your tubes
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Old 6th September 2013, 05:11 PM   #5
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I once used a Yamaha receiver that had a 4ohm setting. That was about 7 years ago. I guess it couldn't handle 4ohms well or something. Anyways, it was terrible on that setting. Really cut the power output.

But I don't really know amps at all. Tube amps confuse me even more.
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Old 6th September 2013, 07:23 PM   #6
balerit is offline balerit  South Africa
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Try the 8 ohm first as 4 ohms will double the load on the power supply and transformer.
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Old 6th September 2013, 07:32 PM   #7
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Quote:
Originally Posted by balerit View Post
Try the 8 ohm first as 4 ohms will double the load on the power supply and transformer.
It's his amp not speaker that can be set.
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Old 7th September 2013, 05:31 AM   #8
balerit is offline balerit  South Africa
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Shot.
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Old 7th September 2013, 10:18 AM   #9
AllenB is offline AllenB  Australia
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Valve amps tend to be sensitive to over-voltage (from a lighter load) the way a solid state amp may not like over-current (from a heavy load), so while a higher apparent load impedance may be a sonic choice I'd stop short of declaring it a 'safer' option with a valve amp.
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