When you google an1000 vs x3800h, it seems that the an1000 sounds better.
Don't believe what you read!!!
Most modern electronics doesn't have a "sound" (without EQ, etc.) except there is always some
noise (hum, hiss or whine in the background) and sometimes it's audible, depending the gain, the sensitivity of your speakers, how close you are to the speakers, and how much acoustic noise there is in the room, etc.
There are two other sound characteristics - Frequency response and distortion. Both are usually better than human hearing unless you over-drive an amplifier into clipping (distortion).
On the other hand,
all speakers sound different (mostly frequency response) and room acoustics make a difference.
See
Audiophoolery.