I've just bought parts and assembled them for my diy Cmoy Amp. My cmoy schematics is based on this website http://williamneo.blogspot.com/2008/01/diy-cmoy-headphone-amplifier-for.html   And i'm stuck on Step 16 the part which im suppose to connect the volume control, 3.5mm input and...

i've read articles bout the benefits of burn-in especially on dynamic hphones, but im kinda confused on what kind of burn-in is suitable for headphones in general as theres pink, brown, white burn-ins, theres frequency sweep and the list goes on. Also how long does the burn-in process takes?  

hi, i'm pretty much new to this as ive recently hopped on the audiophile bandwagon. So if i've misused any term or offended anyone please forgive me.   I'll be heading to UK for a trip and I've been thinking for quite a while bout upgrading my current stock IEM, the Sony HPM-70 to better...