Under wound vs over wound Stratocaster Pickups.
Underwinding Stratocaster pickups usually involves reducing the coil turns by 5% to 10% below standard vintage specifications (roughly 8,000 turns). This produces a lower-output, brighter, and clearer tone with improved dynamics, often bringing resistance down to around 5.5K-5.9K Ohm for a vintage, articulate sound.
Purpose: To achieve a clearer, "vintage," or "airy" tone, reducing midrange and dark tones associated with overwinding.
Wind Percentage: Common custom options include 5% or 10% underwound.
Resulting Specs: While standard vintage is often around 5.9K - 6.2K Ohms, underwound pickups may sit in the mid-5K range.
Bridge Position: While often used in the neck/middle for clarity, an underwound bridge pickup can help reduce the harshness sometimes found in Strat bridge positions.
When to use: Ideal for blues, surf rock, or getting the classic 1950s glassy Stratocaster
Overwinding Stratocaster pickups typically involves adding 5% to 10% more wire than vintage specs (around 8,000 turns) to increase output and boost midrange frequencies, while slightly reducing treble. Popular overwound, or "hot," sets often range from 6K to over 7K DC resistance to create a warmer, thicker, or less shrill tone, particularly for the bridge position
Purpose: To produce a hotter, thicker tone, frequently used on bridge pickups to bridge the volume gap with the neck and middle, or to tame harsh treble.
Tone Impact: Increases mids and output, but can result in a darker, less dynamic, or more compressed sound compared to standard pickups.
Resistance Changes: For instance, moving from a standard approx 6K ohm to 7K or higher, often with a 5% to 10% increase in wire wraps.
Common Applications: For hot or overwound pickups are ideal for rock, blues-rock, or overdriven sounds, rather than the cleaner, bright, or "vintage" tones of a standard setup.
Limitations: Overwinding reduces high-frequency response, so it is not a direct increase in sparkle