Increase or decrease signal voltage (-10dBV and +4dBu) without adding noise. Use any combination of 1/4? and XLR ins/outs. Eliminates ground loop hum. Converts balanced and unbalanced signals. 2 channel box version. Cold-rolled steel housing, passive design (no power required) & two-year warranty. Features include: • Increase or decrease signal voltage (-10dBV and +4dBu) without adding noise • Also contains Hum Eliminator technology to get rid of hum caused by ground loops or unbalanced cables • Also converts balanced and unbalanced signals • 1/4? jacks can accept any combination of mono or stereo plugs • Available in 2 channel box or 8 channel single space rack • Passive device (no power required) • Hang-able/resealable clear clamshell packaging • Cold-rolled steel housing, two-year warranty