inputs.text: great product - purchased itehem use ipod classic 160 says supposed signal lod noticeably better jack top ipod however volume lod connection fixed not loud need purchase headphone amp really enjoy lod connection purchased amp [ [ asinb005hjwww8 fiio e6 headphone amplifier e6 ] ] exceptional listening experiencethe following link headphones use [ [ asinb004zg9tma audiotechnica athm50s professional monitor headphones ] ]