OK. What's the solution?
Is not there a standard line level audio output?
It appears there is based on research listed below. I have always heard the term "1 volt" used but never researched it till now.
What happened to::::
The reference voltage for the decibel volt (0 dBV) is 1 V
RMS, which is the voltage required to produce 1
milliwatt (mW) of power across a 1
kilohm (k?) load.
[1] The reference voltage for the decibel unloaded (0 dBu) is the voltage required to produce 1 mW of power across a 600 ? load (approximately 0.7746 V
RMS).
[2]
The most common nominal level for consumer audio equipment is ?10 dBV, and the most common nominal level for professional equipment is 4 dBu. By convention, nominal levels are always written with an explicit sign symbol. Thus 4 dBu is written as +4 dBu.
Expressed in absolute terms, a signal at ?10 dBV is equivalent to a
sine wave signal with an amplitude of approximately 0.447 volts, or any general signal at 0.316 volts
root mean square (V
RMS). A signal at +4 dBu is equivalent to a sine wave signal with an amplitude of approximately 1.737 volts, or any general signal at approximately 1.228 V
RMS.