Hi all
I'm hoping someone might be able to help me calculate resistors needed for attenuation of DIY RCA cables.
My source output impedance is 47 Ohms and my amp input impedance is 22k Ohms.
I am using a Geek Pulse DAC with McIntosh MA2275 integrated valve amp and at normal listening levels the dial is at about 8 O'clock. Thinking maybe 8 to 12dB attenuation is needed? I have read about sonic benefits of having the dial higher on the power amp when matching old and new equipment.
The formulas can be found here but the link to calculate resistors required seems to be broken
http://wiki.slimdevices.com/index.php/DIYPassiveAttenuation
Also I am planning to not terminate the shield at the amplifier/attenuated end of the cable to avoid possible ground loops.
Any help, recommendations or directions to info/calculators would be greatly appreciated.
Thank you very much