Hi guys,   I bought a Meier Prehead-1 a few years ago in the U.S (so it's 110V version). Recently I just moved to mainland China where the voltage standard is 220V. I need help on the technical details of the amp, such as the maximum output or current in order to choose a proper current...

Hi guys, I found a beta 22 for sale (FS: Three Channel Beta22 - Head-Fi: Covering Headphones, Earphones and Portable Audio), but I am not sure if the unit is well built. Please help me evaluate the amp. Thanks!

Hi, I need some help to upgrade my system. My current system is Audio Research CD2 +corda prehead-1 HD600/K501/DT990. I listen to classical music(symphony, concerto,piano,etc) 99% of time, and my budget for the comming SS amp is about $1K. It doesn't matter if it's new or not. I hope with the...

I recently got a corda prehead-1 amp with no power cord. I plan to spend <$50 to purchase suitable power cord for my new amp. Please give me some advice. Thanks!

I've just upgrade my CD player to Rega Planet(old version), and I have both K501 and HD600. I only listen to classical music(piano, chamber, and symphonies, etc). Could you please recommend a good amp under $400 for both headphones? I don't care about new or used amps. Thanks!

I am considering an amp for my k501. I mainly listen to classical music, including orchestra work, chamber work, violin and piano solos, and operas. I hope this amp can provide a wide soundstage, killer's mid-range, glorious high, and good details. I don't care about low range. Please give...

I heard this CD player was released in 1991. It seems like it was an upper class product of NAD of that year. If you know about this CD player, please give me some comments about it. Thanks.

I just bought a brand new AKG K501. With over 10 hours burn in, I still can't feel so called wide soundstage of K501. My system is G&W T2.6f amp and NAD 5000 CD player. Could anyone please tell me what is wrong? Thanks!

Right now I have a T2.6F with TOK 6H23 tube. I am considering buying a K501 or HD580/600. This phone will be used for Mozart's symphony(I love the sound of Vienna philarmonic), wind concerto, and violin works; Beethovn's and Chopin's piano work; also opera arias ( I love Callas and Price's...

I heard that HD580 has 3 different versions: German version(oldest), Ireland version(new), and latest version after Henn officially closed the line. The latest version is for the demand of distributers. Are there any differences between these versions, and when were the periods each versions...

Hi, I am new here! I am looking for a headphone around $100 for classical music without using an amplifier. I am using a Sony D-E885 discman and a campaq laptop as sources. I heard beryer dxt 900, senn HD497, Grade SR60, and AKG 240S are good. Thanks in advance!