hello everyone!...   i use the etymotics er-4 with the minibox e+, i´m very glad, but i read that mustang p-51 is a great amplifier, i´d like to know how is the sound with mustang p-51 and the etymotics er-4...can you help with your experience?...   all the best   angel   with hope

what is the best amp for etymotics er-4s?, i´ve read and i think that minibox e+ is a great choice, i´m looking for this one, what is your experience?, what is the best portable amp for you with etymotics er-4s?... your words are welcome... angel with hope

do you know how many hours it´s necesary to get a full charge in the minibox e (there is not a charge light in back)?, here in spain (220v)... with hope

hello!... i want to buy the dac/amplifier octavart 01, here is: Welcome to Audiophilechina do you know this shop?, where can i buy the octavart 01?... with hope

i´d like to find a great insolation for the headphones sennheiser ie8 (like etymotics er-4p with foam eartips), i´ve found this: Foam Sleeves (5 pair) for Shure SE series, E500, E4c, Shure E3c, Shure E5c and Westone earphones , foam sleeves for shure and westone, do you know if i can use those...

hello!... i´m interested in etymotic er-4p, i´ve read good and bad things about these headphones, i´m loking for good insolation and great accuracy, how are the bass?,any information about them will be welcome... where can i buy etymotic er-4p with security and good price?... with hope