Price: $1500
Website: www.simaudio.com
S. Andrea said: The 230HAD has prominent but controlled bass, relaxed and refined treble, and a full-bodied midrange that provides a coherent transition between the two -- a sonic profile I found worked well with all types of music and a variety of headphones.
Read the SoundStage! Xperience review.
The gist: Most affordable Simaudio headphone amp has many strengths.