This is a gray area. Peavey owns the copyright. However, under US copyright law, owners of a physical product have the right to repair. Peavey has publicly stated in service forums that they “encourage the sharing of schematics for discontinued products” but do not authorize commercial resale.
Our exclusive content is a transformative work—annotated, error-corrected, and explained. We are not simply copying Peavey’s internal PDF; we are producing a repair aide for a discontinued amplifier (the original MAX 115 was phased out in 2018).
Here lies the biggest variation. The MAX 115 is a 150-watt RMS combo. Most schematics show two possible topologies:
The preamp is where your bass first lands. It handles: peavey max 115 schematic exclusive
Exclusive insight: Early versions used a single JFET input buffer; later revisions (post-2012) added a dual op-amp for lower noise. Check your board for IC1. If it’s a 4580, you have the updated low-noise spec.
Peavey produced at least 4 board revisions (Rev A, B, C, and D). The Rev D schematic is the most elusive. Look for “94V-0” and a six-digit serial number on the PCB edge. Our exclusive guide includes the transition points:
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. This is a gray area
If you search online, you will find several schematics labeled “Peavey Max 115.” Some are for older “black knob” versions. Others are for the “silver stripe” era. A few rare ones are for the export models with different voltage taps. The problem is that using the wrong schematic will lead you down a path of frustration, blown parts, and potential fire hazards.
An exclusive schematic isn’t just about rarity—it’s about accuracy. The correct schematic for your specific revision contains:
Without this exclusive data, a simple capacitor swap can turn into a cascading failure of the driver stage. Exclusive insight: Early versions used a single JFET
A quick scan of bass forums (TalkBass, Reddit’s r/Bass, and Peavey user groups) reveals a growing trend: The MAX 115 is aging. Units from the early 2000s to mid-2010s are now experiencing capacitor drift, cracked solder joints, and power supply failures.
The problem? Peavey has historically been protective of their intellectual property. While they are one of the most helpful companies regarding technical support (often emailing PDFs upon request), finding a public, labeled, and exclusive deep-dive schematic is rare. Most online copies are blurry, incomplete third-gen photocopies.
Our exclusive analysis—synthesized from original Peavey service bulletins and technician reverse-engineered notes—gives you the clearest roadmap yet.
Let’s break down what you’ll actually see inside an authentic Peavey Max 115 schematic. The amplifier is logically divided into four main sections: