*Free upgrading program will be expired on Sept 1st, 2010
*Standard Card was designed for both fullsize headphones and earphones.
We will use the upgraded standard HM-801 amplifier module from now on. We will help our previous customers upgrade the old HM-801 Standard Amplifier Module in the next three weeks. Customers need to pay shipping cost, then ship the old amplifier card with the printed shipping cost paypal email to us. After receiving the old standard card and printed paypal email from our customer, we will upgrade OPAMP from OP275 to OPA2107, then ship them back again via USPS (in US) or internatianl express mail. Upgrading period will be about 3 to 4 weeks. The upgraded amplifier is much better than original card: better high / low and more detail.
If you are in US or Canda, please ship via USPS or your local carrier service to:
41-70 Main Street #B3-326
Flushing, NY 11355
If you are international customer, please ship to:
36 Hubei Road, 5-3-202
Xuzhou, Jiangsu Prov, 221006