Peavey Max 115 Schematic Exclusive May 2026

The original Max 115 has a natural roll-off below 60Hz to protect the speaker. By tracing the preamp’s coupling capacitors on the schematic, you can increase the value of C5 (usually 100nF) to 470nF or 1µF. This extends the low-end response at the risk of exceeding speaker excursion—use with caution. Conclusion: Why the Peavey Max 115 is Worth the Effort In an era of lightweight Class D amplifiers and DSP modeling, the Peavey Max 115 remains a relevant, repairable tool. It has a soulful, thick bass response that many modern amps lack. Better yet, it was built before the era of surface-mount components and proprietary ICs; almost every part is a standard, off-the-shelf item.

Using your multimeter, measure DC voltage at the power supply filter capacitors. Refer to the schematic for expected voltages. If +45V is reading +12V, your rectifier or transformer primary may be bad. peavey max 115 schematic exclusive

In this deep-dive article, we’ll explore why finding the correct , unaltered schematic for your specific Max 115 version is critical, what secrets the circuit diagram holds, and how to use that exclusive technical data to perform effective repairs. Before we look at voltages or transistor biasing, we must address the single biggest hurdle in repairing a Peavey Max 115: Peavey revised this amplifier multiple times. The original Max 115 has a natural roll-off