Howdy everyone. I just picked up a vintage pair of stax sr5 with an srd-6 transformer. Unfortunately due to budget constraints I have to use my cheap lepai speaker amplifier. I've been noticing some hiccups that I'm hoping you all can help me with.
I've been having some channel imbalance issues that seem to be tied to the amplifier if I'm not mistaken. When switching the transformer from headphones to speakers and back I get some significant imbalance that seems to be instantly corrected after cranking up the volume on the lepai amplifier. The quieter channel always seems to be random.
I'm also getting some rattling in one of the channels when playing low frequencies, I'm not sure I can do anything about this one or if it's due to a stuck hair or something. These headphones are a few decades old after all.
Lastly, I seem to be getting some crunchy distortion in the other non rattling channel which happens in the treble range. Changing channels software side still didn't fix the issue, so this is likely hardware related. I can't tell if it's the amplifier, the old speaker cable, the transformer or a deformity in the driver. It could be dust, hair, or dirt perhaps. Can anyone shed some light here? This is a great pair of cans I'm so close to enjoying.