On Mar 24, 2005, at 11:44 AM, Robin Bowes wrote:
Sean Adams wrote:
Yes, Squeezebox2 has 6 volt peak-to-peak line out levels, which is the standard for high-end equipment. Squeezebox1 is 3Vpp.
Sean,
How is this output level determined?
Play a full-amplitude sine wave and look at peak-to-peak voltage on a scope.
You can also use a standard volt meter (set to measure AC voltage) which will tell you RMS voltage.
To convert from RMS to peak-to-peak voltage for a sine wave, multiply by 2 * √2
Is there anyway to tweak a SB1 to increase the output levels (other than adding a x2 voltage gain stage!)?
No - would require cutting traces, adding an internal 9V power supply, op-amp chip, and a handful of resistors and caps.
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