• Unipolar Pulse Density Modulation (UPDM) amplifier consumes ultra-low power
• Output Power: 4 x 800W RMS at 8-Ohm, 4 x 1400W RMS at 4-Ohm, 4 x 850W RMS at 2-Ohm
• XLR input and Speakon output connectors provide great compatibility and enable the amplifier to easily fit into your PA rigs
• Overload protection functions keeps your PA speakers and subwoofers worry free
• Rugged, heavy-duty metal 1U rackmount chassis holds up to touring applications. Ultra-lightweight (less than 9 lbs) makes it easy to transport

The ASTONE ST-UPDM4C is a professional 4-channel UPDM power amplifier. The UPDM (Unipolar Pulse Density Modulation) technology enables the unit to keep its power consumption to minimum.Compared to a traditional Class-AB amplifier, the ASTONE ST-UPDM4C is more efficient and much lighter with less power dissipated as heat. It delivers 4 X 800 watts at 8-ohm, 4 X 1400 watts at 4-ohm, and 4 X 850 watts at 2-ohm. Its massive power provides sufficient headroom to your PA rig.You can also easily integrate this amplifier to your PA rig thanks to the universal XLR input and speakon outputs. The amplifier also comes with overload protection to protect your PA speakers and subs.