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JMI Treble Booster
JMI Amplification

Treble Booster

The JMI Treble Booster is a delightfully vintage-inspired stompbox that transports you back to the golden age of British rock. Designed as a modern take on the legendary Dallas Rangemaster, this pedal packs a wallop of high-end punch and searing lead tones. At the heart of the JMI lies a rare, NOS OC-44 transistor, carefully selected to capture the same touch-sensitive response and natural compression that made the Rangemaster a studio staple for the likes of Tony Iommi and Brian May. Crank the single boost control, and you'll be rewarded with a gloriously thick, singing lead tone that cuts through the mix with authority. The pedal's sand-cast aluminum casing pays homage to the iconic Tone Bender MkII, giving the JMI a rugged, vintage-inspired aesthetic to match its sonic character. This limited-edition design - with only 250 units worldwide - ensures your tone will be as unique as the players who helped shape rock history. Whether you're chasing that classic British crunch or need to slice through a dense mix, the JMI Treble Booster is a must-have for any guitarist seeking to tap into the golden age of rock guitar. Plug in, turn it up, and let the JMI's harmonically rich boost transport you to a time when tone was king.

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