This is not so much to do with sound quality for once ( though i do want to address a little thingy about that too). and its not about a single pair of headphones. This is about issues across the board that I stugle with and have done so for years- given my sensitive nature to such things.:- So...

I recently bought a pair of used 2018 andromedas- they look like new, however, the left iem has some extreme sensitivity and will buzz / make very loud white noise if I hold my phone while it is charging. This goes away when playing anything. The fact that it does not happen with the right iem...

Hi All. May I ask for simple clarification if possible? I have a HiBy R6. It has high output impedance. I’m trying to understand the comments about high sensitivity iems. There are figures always published with every pair and a general warning from HiBy owners to avoid low impedance iems...

My active speakers have two pairs of RCA inputs, manual states their sensitivities as: AUX: 550mV +-50mV PC: 700mV +-50mV Which should I use? And what difference would it make? My DAC's manual states: Line Out output level: 2.38Vrms @ 1kHz I am new to this and any comment is welcome.

Hi all, Impedance of the headphones i (think i) understand - it is the resistance provided by the headphone circuit. Higher impedance = harder to drive as more resistance (often thinner wire with more coils = higher resistance, which i think is how beyer do it with their multi impedance...