•8ohm or 4ohm low impedance•Fan cooled (variable speed)•100v via optional OT Series Transformer Converters•Inputs (XLR-¼ jack)•Outputs (Binding post)•LED indicators for clip/protection/signal•Mains powered•2U high 19 rack mountingOutput Power per Channel: 170W @ 8ohm;240W @ 4ohm Output Power Bridged Mono: 480W @ 8ohm Input/Sensitivity: 0dBm/20kOhm; Balanced Frequency Response: 20Hz ~ 50kHz Power Requirement: 230v AC 50Hz Dimensions: 482(W) x 88(H) x 369(D) mm Weight: 17kg Weight (Net): 17.00kg Weight (Gross): 20.24kg .