I have a slight hearing loss in my left ear and would like to be able to "balance" the left and right channels coming from the amp.  Luckily the volume control is a two-part affair which allows for individual adjustment.  My difficulty is that I find it difficult / impossible to get an accurate...

Background Information: I just happen to reside where access to headphones (IEMs or full size cans) is limited / impossible. Having just investing in a set of speakers which had excellent reviews and finding them not at all to my taste I'd like to try and minimize the risk of something similar...