I need a quick piece of advice...

ptwining · 13th July 2006, 06:59 PM

I am building various prototype loudspeakers, not in pairs, one example of a given configuration at a time - and testing them on my UCD's.

Their impedences don't necessarily match - they're all in the stable range (4 ohms or above) - but not exactly the same.

For example I'm now running a 5 driver floorstander @ 4 ohms on one channel and a 3 driver D'Ap design at 5.33 ohms on the other.

Is this unhealthy for the UCD?

I know it isn't optimal for testing the loudspeakers (no match and all) but that's of small concern.

I'm curious what this impedence mismatch on the UCD channels is doing to the amp.

Any opinions?

Thanks and regards,
Tom

poobah · 13th July 2006, 09:05 PM

Not doing any harm at all. Differing speakers and impedances implies different output volume etc... But, as long as each channel is within spec's, all is well.

ptwining · 14th July 2006, 12:10 AM

Just a moment of insecurity

Regards,
Tom

poobah · 14th July 2006, 12:22 AM

Doesn't hurt to be on the safe side... the only stupid questions are the ones that go unasked...

13th July 2006, 06:59 PM	#1
ptwining diyAudio Member Join Date: Feb 2006 Location: east coast	I need a quick piece of advice... I am building various prototype loudspeakers, not in pairs, one example of a given configuration at a time - and testing them on my UCD's. Their impedences don't necessarily match - they're all in the stable range (4 ohms or above) - but not exactly the same. For example I'm now running a 5 driver floorstander @ 4 ohms on one channel and a 3 driver D'Ap design at 5.33 ohms on the other. Is this unhealthy for the UCD? I know it isn't optimal for testing the loudspeakers (no match and all) but that's of small concern. I'm curious what this impedence mismatch on the UCD channels is doing to the amp. Any opinions? Thanks and regards, Tom

14th July 2006, 12:10 AM	#3
ptwining diyAudio Member Join Date: Feb 2006 Location: east coast	Thanks... Just a moment of insecurity Regards, Tom

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13th July 2006, 09:05 PM	#2
poobah diyAudio Member Join Date: Nov 2005	Not doing any harm at all. Differing speakers and impedances implies different output volume etc... But, as long as each channel is within spec's, all is well.

14th July 2006, 12:22 AM	#4
poobah diyAudio Member Join Date: Nov 2005	Doesn't hurt to be on the safe side... the only stupid questions are the ones that go unasked...