- Written by John E. Johnson, Jr.
- Published on 15 May 2014
Conclusions about the OPPO HA-1 Headphone Amplifier
OPPO continues to amaze everyone with their products. The BDP-105 Blu-ray Universal Player is a legend. Now the PM-1 headphones are startling us all, and the HA-1 . . . well, all I can say is if OPPO were a publicly traded stock, I would be sad that I couldn't buy any, since I review their products.
The HA-1 is a killer. I got one is silver and it's gorgeous to look at and dazzling to listen to. Should I say, "Highly recommended," or have you already assumed so?
- • Pure Class A operation in the output stage.
- • No global negative feedback.
- • USB jack for connecting iPod.
- • Fully balanced for use with balanced headphones.
- • Plays digital music files up to 24/384 PCM and DSD256.
- • iPad app to select music for playing (the existing app duplicates the remote control to set volume, input, etc.)
- • USB port to connect a USB drive for music storage, accessible with iPad app.