In response to "Dennis The Menace". The ASL headphone amp,may be liked by people on www.head-fi.org,but that may be the "only" site or people who like them.They have had,and "continue" to have "major" reliability issues.Ask someone at www.headroom,what they think of them.Have known 3 people who owned them,they were all sold within 1 year,for the above fore mentioned reasons.Bottom Line: There "JUNK"!!!!!!!!!!!!! Ron...