[TechAssist] Re: 70 volt line audio amp

  • From: Ernie - Valley TV & Stereo <valleytv@xxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Thu, 28 Apr 2005 08:02:20 -0700

Brock:

Check the amp first - 70 Ohms is not resistance but impedance
I don't know what the resistance would be, because all transformers
are wired in parallel -
If secondary of transformers are tapped, you can choose the
output wattage with the different taps.
Ernie

Ernie Niessen
Valley TV & Stereo
9401 Fletcher St.
Chilliwack, B.C.
V2P 4Z4
Canada
Since 1960
valleytv@xxxxxxxxxxxx


Quoting markbrock <markbrock@xxxxxxxxxxxxx>:

> ok,  whats the limit of resistance I can have at the amp using a 70 volt
> line,  I have around 70 ohms, unit is very distorted,  40 watt system about
> 15 speakers,  old unit burned up,  they bought a new one and its all
> distorted,  then they called me,  I figured someone hung a regular speaker
> on the line but that would be closer to 16 or less ohms,   is 70 ok ?  they
> may be under powered but it worked fine for 10 years previous.  thanks
> brock
> 
> Brock Electronics
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> 5208  cr.3385
> Independence Ks. 67301
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Ernie Niessen
Valley TV & Stereo
9401 Fletcher St.
Chilliwack, B.C.
V2P 4Z4
Canada
Since 1960
valleytv@xxxxxxxxxxxx
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