4 Independent Class-D 60W Amplifiers. Internal USB/FM/Bluetooth Player. 100V or Low Impedance Output Options. 24V EMG Contacts Mute Inputs 2-4Power Supply: 100/240Vac 50/60Hz Power RMS: 4 x 60W (100V or 4 Ohm) Input Connections: 3 x XLR- 1 x RCA/Screw Terminal- RJ45 (CS4)- 3.5mm Aux Output Connections: 4 x 100V (+/-)- 4 x 4 ohm (+/-)- 4 x RCA (line level) Fire Alarm Contacts: 24V Screw Terminals Dimensions: 482 x 283 x 43mm Weight: 6.85Kg. 1U 19″ rack-mountable quad amplifier with 4 input channels and 4 independent speaker outputs. Each output can deliver up to 60W to either low impedance (4 or 8 ohm) or 100V speakers by connecting either the upper or lower screw terminals on the rear panel. An internal media player can play audio files from a USB pen drive- tune to FM radio stations or connect via Bluetooth© to a smartphone for wireless playback of stored audio tracks. A paging mic input has switchable Vox function to override other channels. 2 further balanced inputs can be selected to accept mic or line level input with switchable phantom power. Channels 1 to 3 also each have Bass and Treble controls for tone adjustment. A separate line input has RCA or screw terminal connection and- if required- can be switched to serve the internal media player. Each of the four inputs can be selected to any or all of the four output zones- each with a separate output level control and line level output for expanding to further amplifiers or powered speakers. An optional CS4 call station may be added if specific area paging is needed- providing a fully independent and flexible zoning system for background music- recorded information and announcements.. amp-amplifier-mixer amp-100v mixer amp-rack mount amp-commercial amp