TR122501-XXX01

This pickup presents itself as an exceptionally refined vintage-hot single coil design where warmth, harmonic depth and dynamic responsiveness are clearly prioritized. The measured values form a very coherent and musically convincing package, especially for a pickup built around AlNiCo 2 magnets and a relatively dense 43 AWG SPU winding structure. The 6.32 kΩ DC resistance combined with 2.44 H inductance places the pickup in a slightly hotter vintage range, offering additional body and sustain while preserving excellent note definition. The resonant frequency around 3.85–3.91 kHz keeps the top end smooth and controlled, producing a rounded but still articulate treble response with impressive harmonic sweetness. The overall resonant behavior feels extremely balanced. A Q factor of 2.3 unloaded indicates a healthy and controlled resonance peak with strong musicality and excellent energy transfer, while the loaded Q values remain stable and natural across both 250k and 500k conditions. This gives the pickup a very organic attack character with fluid compression, vocal sustain and highly expressive touch response. The AlNiCo 2 pole structure contributes heavily to the pickup’s personality. The measured magnetic field strengths — approximately 40–58 mT — are very characteristic of a softer magnetic platform optimized for dynamic elasticity and string interaction rather than aggressive attack. This creates a remarkably “forgiving” and musical feel where notes bloom naturally and sustain develops smoothly across the fretboard. Compared to stronger AlNiCo 5 structures, the magnetic pull remains gentler, allowing the strings to vibrate more freely and producing a wider, more open dynamic envelope. The result is a tone that feels extremely responsive to picking nuance while maintaining a rich, rounded low-mid character and smooth upper harmonics. The 43 AWG SPU winding with approximately 8000 turns is a particularly important part of the tonal identity. This winding structure increases copper density and midrange richness while maintaining excellent clarity and harmonic complexity. The measured 210 pF internal capacitance aligns very naturally with the resonant behavior and suggests a healthy, tightly controlled coil geometry with excellent winding consistency. Transient response is especially impressive here. The pickup delivers a soft yet immediate attack that feels extremely musical under both clean and edge-of-breakup amplification. Single notes remain vocal and harmonically layered, while chord voicings retain excellent separation and warmth without losing articulation. The full potting appears very successful as well. Resonance remains stable and controlled while still preserving openness, harmonic air and natural liveliness. The pickup behaves like a highly refined boutique-style vintage single coil optimized for expressive playing dynamics and tonal richness rather than sheer output. Overall, this pickup feels exceptionally mature, musical and inspiring. Its combination of AlNiCo 2 warmth, rich midrange complexity, smooth resonant behavior and fluid dynamic response creates a beautifully organic playing experience with outstanding touch sensitivity, harmonic depth and vintage character.