Originally Posted by Scott27
Yep switched cables and positions over. I had them set to 9am. Not sure what they are set at now to level match them, will have to pull out of baffle wall to see. Will keep you posted.
Allow me to add some comments based on my experience with these volume knobs. Traditionally, itt's a gain control for the preamp, telling the preamp how much the input signal (that from your receiver) is going to be amplified before it is fed to the power amp, so,
, the gain is zero: the signal from your receiver is completely attenuated.
, the gain is, say, 1.5: the signal from your receiver is amplified 1.5 times, then this is fed to the power amp. If input is 1 volt to preamp, output is 1.5 volt to power amp.
In between the tracking could be pretty precise on an expensive volume control, or not as much as I would assume on less expensive controls. At mid level, one might be 0.9 gain, another might be 1.1 gain, but as long as there is nothing wrong with the control, smaller variations (1-2 notches??) I imagine would be Ok. The knobs may be at somewhat different locations, or one may have detente and the other doesn’t, but so long as the gains are the same, there’s no problem. Bigger variations, say 3 notches, is where I probably would seek assurance from Jeff.
Essentially it comes down to expected normal “tolerance” of the Speaker Power amp’s level knob. Hope this helps people with dual subwoofs.