David Mullis
From:
Rock Hill, SC
|
Posted 2 Oct 2001 9:16 am |
|
Hi guys, I've got 2 Sho-Bud amps over on buy and sell for sale. I've been sked several times what the wattage is on these amps. I would like to be 100% sure that I give the right answer. I always thought these amps were about 75 watts, but I hear they made 100 watt versions as well. Are there any readings I can take on these amps to get an idea of what the wattage is? If I remember correctly from electronics class, p=iv. I'm hoping with maybe taking some reading and the use of some formulas, I can figure out exactly what I have. Any ideas?
Thanks
David
|
|
Blake Hawkins
From:
Florida
|
Posted 2 Oct 2001 1:09 pm
|
|
David, If you know the voltage,current, and efficency of the output stage, at max output into a load, then you could calculate the output wattage.
However, it may not match what they claim.
Because, output wattage is measured in a variety of ways.
It may be called "RMS" "HF Music Power" "Peak Power" or something else.
Professional audio equipment is generally rated by the "RMS" method using a sine wave.
Even so, you need to know the percentage distortion. An amp which gives 10 watts at 10% distortion would show lots less power if you took the reading at 1%.
But guitar amps are all rated in different ways.
You'd have to know how Sho-Bud did the measurements.
Perhaps if you post the model and serial numbers, someone on the Forum can tell you
the output power.
You might get an idea of the output power by checking the output transistor numbers with a spec. sheet to see what they can do.
Blake |
|
