Rogers Project Ground Planes

July 08, 2015

This is the chassis just after attaching the xformers, sockets, and ground plane points. Lots a wiring to follow. Take special note of these ground plane points, they are located in many different parts of the chassis.

The reason for the multiple locations of ground lugs is simple- all grounds are not created equal.

These points all have different paths and impedances to the "real" ground. These paths are like rivers of current carrying ac and dc signal out of the amplifier, some are further upstream than others.

Its important to note that some points carry more "dirty" signal that are the byproduct of dc filtering. Placing a sensitive ground point in the path of these dirty grounds can inject noise into the circuit... Hummmmmmmmmmmmmmmm

We want to keep the most sensitive stages of the amp as far upstream as possible. The most sensitive stage of the amp is the input. Keeping all this in mind and utilizing your brain gives you the best chance for eliminating noisy loops and gives you the best chance for a nice quiet amplifier.

The lugs closest to the power inlet are the closest impedance to real ground, the one that is on your house or studio structure. This is the end of the ground plane for our purposes…
A nice solid 24k gold spike inserted into the earth would be an ideal final ground point, but it probably would get stolen. -Ossie

Also in News

Limited Production Of All Current Models

October 14, 2016

You'll notice that all current models are now in limited production. That means when the chassis' and parts for these models are gone, we will cease production of these amps. We have parts for all models, so don't hesitate to contact us with an order.  Currently we are working on some new projects and a complete redesign of cabs and chassis' as well as a few surprises.

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Moving the Shop

September 01, 2015

Just wanted to inform everybody that we we are in the process of moving the shop to a new location. We are open and business is running as usual, we're still designing/building/shipping amps. If you need to contact us please email

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Rogers Project Completion

July 13, 2015

The amp has been completed and has now been under testing for a few days… It has surpassed my expectations.

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