[sdiy] SOT: speakers & theory...

[John L Marshall]

Is this a tube (valve) amplifier or solid state? Tube amplifiers almost 
always output transformers. Solid state amplifiers seldom have output 
transformers. A 16 ohm load will require a larger voltage swing for the same 
power output. A 4 ohm load will draw more current for the same power output. 
The impedance and the current demand are reflected back through the 
transformer to the source. Damping, which generally depends upon load 
impedance, will be affected.

Take care,
John

----- Original Message ----- 
From: "Nils Pipenbrinck" <np at inverse-entertainment.de>
To: "Magnus Danielson" <cfmd at bredband.net>; <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, June 05, 2005 7:26 AM
Subject: Re: [sdiy] SOT: speakers & theory...


> Magnus Danielson wrote:
>
>> Now, did that make sense? Do you want the long story giving some more 
>> theory
>>
>>and all?
>>
>
> Yes! Give me the long story, please.
>
> Btw, not that it really matters since I already solved my problems (I 
> parallel them.. much better high end response), but the amp in question 
> has an output transformer which has taps for 16, 2*8 and 2*4. I expect the 
> transformer to do the impendance matching.
>
>
>