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Ron C[_2_] Ron C[_2_] is offline
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Default Advice To Others Wanting to Build A Stereo System

On 8/3/2018 6:57 PM, Mike Rivers wrote:
On 8/3/2018 6:04 PM, wrote:
I was told that hooking up a speaker of lower
impedance than the minimum specified by a given
receiver or amp could cause that amp to "overheat
quickly" and that there was "insufficient load on the
amp".


An amplifier can "overheat quickly" with the correct impedance speaker
connected if you operate the system stupidly. The part about
"insufficient load" is horse****. If anything, it's too great a load.
But the, still, only if you allow it to overload.

There's an "insufficient load" issue with a tube amplifier with an
output transformer. If you operate the amplifier without a load and push
it to its maximum output level, the output transformer could possibly
arc over internally, damaging the transformer or the output tubes. But,
again, this is only if you do something stupid.

Mike I'd be surprised if you or Dorsey told me that
I could 'ignore the numbers' and hook up speakers
of any impedance to my 8-16ohm receiver.


I didn't say that, and I'm sure Scott wouldn't say that either. What I
said was that it was OK to connect a 4 ohm speaker to an amplifier
that's rated for an 8 ohm speaker, as long as you keep it down to a safe
level. For a given setting on the volume knob, a 4 ohm speaker may not
play as loud as an 8 ohm speaker, but that depends on other things in
addition to impedance. Again, it's about avoiding doing something
stupid. And you can do something stupid (and cause damage) even with a
speaker of the recommended impedance connected.

And even
if you said it was okay, I'd still go by what's printed
or engraved on the back of it


Nobody said you couldn't.

Those figures exist on the backs
of amplifiers & receivers for a reason.


Yes. As guidance for salesmen.



So ...I have this T-shirt ...it says:

I can explain it to you but I can't understand it for you.
~~
We seem to be there yet again.
--
==
Later...
Ron Capik
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