Samson’s MDA1 Mono Active Direct Box combines premium sound circuitry with durable, roadworthy construction, providing high-quality signal connection solutions for live sound and recording studio applications. The MDA1 operates on either batteries or phantom power and allows clean, balanced lines to be sent from your guitars and basses. The active MDA1 provides an even frequency response on any audio signal you connect to regardless of its output impedance. Rackmountable: NoNumber of Input Ports: 1Number of Outputs: 2UK/EU Power supply included: NoBattery Operation: YesType: DI BoxMade in: China