Yorkville AP4040 working, used, scratched, and slight 60hz hum/ works full power

Description

Yorkville AP4040. They are working, used, scratched, and have a slight 60hz hum, but they do work to awesome full power.
2x 800w @ 8 Ohms Amplifier
2x 1200w @ 4 Ohms Amplifier
2400 watts bridged into 8 ohms
43 lbs
43Features
Features
Delivers 1200 watts per channel at 4 ohms
(2400 watts bridged into 8 ohms)
Proven Ultra Reliable Conventional Designs
Easily Handles Reactive Phase Shifted Loads
Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection
Transparent User-Defeatable Peak Limiter Circuits
Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up
Computer-Optimized Silentfan™ Front-to-Back Heat Dissipation System
Long-Life, Faceplate-Mounted, User Serviceable, Air Intake Filters
Front Panel Power, Protect, Activity and Clip Led's
Speakon™ and Binding Post Outputs
Balanced XLR and ¼-inch TRS Inputs
All-Steel Chassis Construction
Delivers 1200 watts per channel at 4 ohms
(2400 watts bridged into 8 ohms)
Proven Ultra Reliable Conventional Designs
Easily Handles Reactive Phase Shifted Loads
Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection
Transparent User-Defeatable Peak Limiter Circuits
Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up
Computer-Optimized Silentfan™ Front-to-Back Heat Dissipation System
Long-Life, Faceplate-Mounted, User Serviceable, Air Intake Filters
Front Panel Power, Protect, Activity and Clip Led's
Speakon™ and Binding Post Outputs
Balanced XLR and ¼-inch TRS Inputs
All-Steel Chassis Construction
Features
Delivers 1200 watts per channel at 4 ohms
(2400 watts bridged into 8 ohms)
Proven Ultra Reliable Conventional Designs
Easily Handles Reactive Phase Shifted Loads
Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection
Transparent User-Defeatable Peak Limiter Circuits
Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up
Computer-Optimized Silentfan™ Front-to-Back Heat Dissipation System
Long-Life, Faceplate-Mounted, User Serviceable, Air Intake Filters
Front Panel Power, Protect, Activity and Clip Led's
Speakon™ and Binding Post Outputs
Balanced XLR and ¼-inch TRS Inputs
All-Steel Chassis Construction