The QH4 4-Channel Headphone Amplifier is a high-performance, great-sounding solution for stereo desktop headphone distribution. The QH4 is ideal for any situation where up to four headphone channels are required. Simply connect an audio source to the amplifier and instantly have independent control over each headphone channel. Reviews There are no reviews yet. Be the first to review “QH4 4-Channel Studio Headphone Amplifier” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.