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The York Audio KW 412 M25SH is widely regarded as a IR for vintage British rock and high-gain applications. It captures the specific "greenback" character of low-wattage, pre-rola Celestion G12M-25s—known for their woody mids, soft highs, and aggressive but non-brittle attack.
Digital Capture and Sonic Analysis of the Marshall "Kerry Wright" 4x12 Cabinet with Celestion G12M-25 Speakers Date: October 26, 2023 Focus: Tone shaping, frequency response analysis, and application in modern digital modeling. york audio kw 412 m25sh irs
500ms for maximum detail, with natural and minimum phase versions provided. The York Audio KW 412 M25SH is widely
The "M25SH" designation refers to the specific driver load: the Celestion G12M-25, colloquially known as the "Greenback." 500ms for maximum detail, with natural and minimum
The is a collection of impulse responses (IRs) based on a custom-built Kerry Wright 4x12 cabinet owned by fusion guitar legend Scott Henderson . It is loaded with UK-made Celestion G12M 25-watt Greenback speakers and is designed to provide an authentic digital recreation of this specific, rare cabinet. Key Features and Content
To understand the significance of this IR library, one must understand the hardware behind it. The late Kerry Wright was widely considered one of the finest boutique cabinet builders in guitar history, known for an unparalleled structural resonance that made his 4x12 cabinets sound larger, punchier, and more multi-dimensional than standard production cabs.
The cabinet has a low resonance frequency of 115 Hz , providing a deep, organic resonance that many users find more immersive than standard Greenback packs.
