You are bdding on a Bose PM8500N ampllifer ,the unit powers up but no sound to the speakers overloading it is being sold as is no return.$40 fo shippong

Key FeaturesQuadBridge technologyAuto-Standby/Auto-Wake functionDual voltage and current feedback loopPeakBank power supplyFast-tracking power factor correction (PFC)QuadBridge technologyAllows each 4-channel loudspeaker block to be configured as Mono, V-Bridge, I-Share or Quad modes, allowing the total available power of the amplifier block to be allocated to one or more output channels. The amplifier is capable of driving both low impedance and 70/100V loudspeaker loads directly.Auto-Standby/Auto-Wake functionWhen enabled, this function automatically enters/exits Standby mode, allowing the system to consume less power.Dual voltage and current feedback loopProprietary design combines efficiency with a unique current and voltage feedback loop circuit that continuously monitors and controls both the current and voltage delivered to the loudspeaker load. Independent of power level and load impedance, the amplifier consistently delivers the widest possible dynamic range, frequency response and lowest possible distortion.PeakBank power supplyRegenerative 4-quadrant power supply enables higher power density while allowing the re-use of energy from reactive loads that is normally wasted in conventional designs. This highly efficient amplifier design delivers sustainable and repeatable low frequency response.Fast-tracking power factor correction (PFC)Efficiently manages the current drawn from the AC mains, allowing the amplifier to drive loudspeakers to maximum output longer without power fluctuation. PFC provides superior transient response and functions at peak burst power much longer than conventional amplifier designs to satisfy the requirements of even the most demanding program material.Technical SummaryMaximum Rated Power 4000 W (500 W x 8 channels at 4 ohms)Input Channels 8 (balanced line level)

Key FeaturesQuadBridge technologyAuto-Standby/Auto-Wake functionDual voltage and current feedback loopPeakBank power supplyFast-tracking power factor correction (PFC)QuadBridge technologyAllows each 4-channel loudspeaker block to be configured as Mono, V-Bridge, I-Share or Quad modes, allowing the total available power of the amplifier block to be allocated to one or more output channels. The amplifier is capable of driving both low impedance and 70/100V loudspeaker loads directly.Auto-Standby/Auto-Wake functionWhen enabled, this function automatically enters/exits Standby mode, allowing the system to consume less power.Dual voltage and current feedback loopProprietary design combines efficiency with a unique current and voltage feedback loop circuit that continuously monitors and controls both the current and voltage delivered to the loudspeaker load. Independent of power level and load impedance, the amplifier consistently delivers the widest possible dynamic range, frequency response and lowest possible distortion.PeakBank power supplyRegenerative 4-quadrant power supply enables higher power density while allowing the re-use of energy from reactive loads that is normally wasted in conventional designs. This highly efficient amplifier design delivers sustainable and repeatable low frequency response.Fast-tracking power factor correction (PFC)Efficiently manages the current drawn from the AC mains, allowing the amplifier to drive loudspeakers to maximum output longer without power fluctuation. PFC provides superior transient response and functions at peak burst power much longer than conventional amplifier designs to satisfy the requirements of even the most demanding program material.Technical SummaryMaximum Rated Power 4000 W (500 W x 8 channels at 4 ohms)Input Channels 8 (balanced line level)

The Bose Professional PowerMatch PM8500N configurable professional power amplifier provides concert-quality sound with a high level of scalability and configurability for fixed installation sound reinforcement systems. Ethernet-based networking enables configuration, control and monitoring, and an expansion slot supports input from optional digital audio accessory cards. PowerMatch amplifiers utilize numerous Bose Professional technologies to deliver an unprecedented combination of performance, efficiency and ease of installationall in a reliable, proprietary design. FEATURES Technical Summary Maximum Rated Power 4000 W (500 W x 8 channels at 4 ohms) Input Channels 8 (balanced line level) Output Channels 2 to 8 (configurable) Guarantee to be 100% working or your money ey back,winning bidder pays $50 for shipping Happy bidding

BOSE POWERMATCH PM8500 PM8500N EIGHT CHANNEL PROFESSIONAL DSP PRO AMPLIFIER Please view all photos for full details on this items condition. Most items ship same day or next. Any questions, please feel free to ask. SKU: U2

BOSE POWERMATCH PM8500 EIGHT CHANNEL PROFESSIONAL POWER DSP PRO AMPLIFIER Please view all photos for full details on this items condition. Most items ship same day or next. Any questions, please feel free to ask. SKU: U2

BOSE POWERMATCH PM8500 EIGHT CHANNEL PROFESSIONAL AMPLIFIER VERY LOW HOURS This was a test unit from an ex Bose engineer. Last then a 100 hours or so. Like new inside and some scratches from moving it around outside a rack. Original speaker and input connections are included.Please view all photos for full details on this items condition. Most items ship same day or next. Any questions, please feel free to ask. SKU: U:2F

BOSE POWERMATCH PM8500N EIGHT CHANNEL PROFESSIONAL NETWORK AMPLIFIER Please view all photos for full details on this items condition. Most items ship same day or next. Any questions, please feel free to ask. SKU: U2

BOSE POWERMATCH PM8500 EIGHT CHANNEL PROFESSIONAL AMPLIFIER Please view all photos for full details on this items condition. Most items ship same day or next. Any questions, please feel free to ask. SKU: R2354971040304