In Xam's pattern terminology, "Custom 15" refers to a specific size category within the pattern file.
Before understanding the "Custom 15 Top," you must understand the builder. Xam Jenny (often stylized as XAM/JENNY) started in a small workshop in the Pacific Northwest in the late 2000s. The founder, a reclusive engineer formerly of a major legacy amp company, became frustrated with mass-produced circuit boards and surface-mount components. xam jenny custom 15 top
The philosophy was radical: No compromises. No printed circuit boards (PCBs). Every connection is hand-soldered on turret boards using vintage-spec materials. In Xam's pattern terminology, "Custom 15" refers to
The “Jenny” moniker came from a beloved 1950s test oscillator used to voice each transformer. "Xam" (Max spelled backward) represents pushing limits in reverse—going back to go forward. The Custom 15 Top is their flagship low-to-medium wattage head, designed to marry vintage Tweed-era dynamics with modern reliability. Back & Sides (crucial for a 15” body):
When ordering a custom 15-top, these are the critical build specs: