Upgrade tone 4 Marshall 412 cab plywood back plate

In over 25 years of music production I've learned all the producer tricks for tuning a modern Marshall cabinet to sound like a thousand dollar 60's Marshall cab.. this is just one of the 4 main tricks that get you there for those who can't afford a thousand $ Marshall cab off the bay... The "BUYER" will receive the other 3 tricks verbally in person to enhance their future tonal enjoyment! Sure this particular trick item is just plywood and an old school metal jack plate to make it look as old as it sounds, but what you are really paying for here is the metal plate and the labor of lining up screw holes to perfection into a piece of plywood.. clear sheet template is long gone, but this back is still ready to start tuning up somebody's "FULL SIZED" Marshall Cab! I recommend bringing your cab with your back off to test fit this item as Marshall did occasionally drift from this common screw pattern from time to time!