Dumble, a renowned guitar amplifier manufacturer based in Los Angeles, California, was established by Alexander "Howard" Dumble (June 1, 1944 – January 16, 2022). The brand gained fame for its custom, handcrafted amplifiers that were personally built by Dumble himself, contributing to their exclusivity and high market value. The amplifiers are considered the most expensive boutique options on the used market, with prices soaring due to their rarity and quality.
Dumble's amplifiers, known as the Dumble Overdrive Special (ODS), are highly sought after and have fetched prices ranging from $70,000 to $150,000 for used models, often exceeding these figures. Dumble built only a small number of amplifiers annually, typically two to three units, primarily catering to celebrity musicians and recording studios. He intentionally priced the amps similarly to the used market to discourage resale.