Onkyo Integra M-504 Dual Monoblock Stereo Power Amplifier Well Maintained Clean

Description

Hello and welcome to my auction.  You are viewing a very clean, well maintained Onkyo Integra M-504 Dual Monoblock Stereo Power Amplifier in very good physical, operational and functional condition.  The amplifier has seen very little use since acquired and am selling it due to issues that arose limiting physical ability, resulting in downsizing my larger, heavier equipment.  It is fitted and upgraded with real, solid black walnut wood side panels finished with 10 coats of hand rubbed satin finish polyurethane.  The panels were cut back between coats with 0000 ultra fine steel wool with the final coat receiving similar treatment in addition to being buffed with a swirl remover and then finished with 3 coats of hand rubbed bowling alley wax.  They are silky smooth and the depth of the grain at certain viewing angles is spectacular.  For transparency, there are a couple of minor rub marks in the finish on the top panel cover from equipment handling over time.  The top panel has something of a stock vinyl textured finish over the cover's sheet metal and the rub marks are areas where the texture is worn flat, not like a scratch that would display the metallic surface underneath.
The amplifier has received regular preventative maintenance (PM), including regular cleaning, polishing and blow outs to eliminate internal dust buildup and treatment of all cable connectors, controls and switches with CAIG DeoxIT or similar to prevent oxidation.  A PM was performed on the amplifier prior to listing and it was run for several days at normal listening levels to ensure dependable, reliable and continued operation. The M-504 is a very robust piece of equipment that's built like a tank with very high quality parts, an abundance of capacitance (Nichicon capacitors - 72,000 microfarads total, 36,000 per monoblock) providing significant power reserve and a lot of dynamic headroom that can easily handle transient spikes and peaks with extreme dynamic authority.  I am confident the M-504 will perform flawlessly for its new owner, however due to the skills and knowledge required to install and operate it properly, this is a final sale with no returns.  Please, perform some due diligence and ensure the equipment will fit/meet your needs, interoperate with existing equipment and that you're familiar with its operation; M-504 specifications are provided below for reference.     Please note::  The amplifier was always provided with conditioned power, comes from a smoke/pet free home and resided in a well-ventilated enclosed stereo cabinet and drove highly efficient speakers (96dB+ sensitivity).  It ships doubled-boxed, in oversized heavy duty boxes with ample packing to ensure safe, secure transit (please take this into account with current day shipping costs) insured for full value with signature confirmation.  Thanks for looking and good luck bidding!
Onkyo M-504 Product Information
Power output: 165 watts per channel into 8Ω (stereo)
Frequency response: 1Hz to 100kHz
Total harmonic distortion: 0.003%
Damping factor: 140
Input sensitivity: 1V
Signal to noise ratio: 120dB
Dimensions: 465 x 185 x 422mm
Weight: 22.5kg