Mesa 50/50 Power Amp Modification Kit


Greatly improve the tone and performance of the Mesa Boogie 50/50 Stereo Power Amplifier by installing our modification kit. Noted improvements:

– Better bass response & balanced frequency spectrum
– Increased power output
– Internal adjustable bias and bias test points

Our kit includes step-by-step instructions and photo reference.

Note: The standard “deep mod” (choke, V1 RC replacement, etc.) is included in the kit, but we didn’t stop there! Make your 50/50 the best it can be!

Beginning in 2018, instructions are now online for your convenience. This allows us keep our prices competitive, and helps all of us reduce paper waste. Links to PDF files will be included in the order status email, and your order history. Please add to your email whitelist to ensure you receive our emails.

DIFFICULTY LEVEL: INTERMEDIATE [Follow safety guidelines for working with electricity. Basic soldering skills and knowledge of working with AC/DC circuits. Identify all terminals of electronic components using data sheets. Read resistor color codes and capacitor values. Measure and connect high and low voltage AC and DC. Understand basic working of vacuum tubes. Use all functions of a multimeter. Understand Ohms law and apply to basic circuits. Work with basic hand and power tools.]

Pricing and Options


Available on backorder


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