This auction is for a New Power Reduction upgrade kit for Tube amplifiers. This price includes Free installation by McPherson Stompboxes NZ.

Please note: This is not a common Master Volume mod, it is a Power Reduction modification that lowers the power and headroom of the output stage.

If you want to get that cranked sound from your Tube amp at lower volumes normally you need an Attenuator or some form of Variable Voltage Regulation (VVR).

Our Power Reduction circuit lets you control the Power Output of your amp via an additional control pot installed into your amps chassis. It achieves the same goal as other methods but with a few advantages.

• Subtile Frequency Compensation.
• No dangerous voltages on the control pot (like with a VVR)
• When the Power Reduction control is set to minimum the circuit is completely removed leaving your amp stock. VVR's & Attenuators are always in the circuit.
• Works great with Master Volume amps

This upgrade will work on many Tube amps, please let us know your amp model in the Q & A before bidding.

Your amp will need to be dropped off at our Workshop and left overnight, we will not ship your amp.

Our Workshop is based in Papamoa (Tauranga)