Dumble guitar amps – and tube amps that were modded by the late amp technician – are some of the most elusive, most expensive pieces of guitar gear that you could ever hope to get your hands on. Revered Nashville producer Dave Cobb, though, once managed to get Alexander Dumble to mod an amp for him for much, much, much less – when he traded one for a blender. That’s one helluva deal to get your amp modded by Dumble – especially when Cobb himself has gone on record in the past alluding to how pricey Dumble amps actually are. Cobb’s gear collection – and his Nutribullet Marshall – wasn’t the only thing that influenced the sound of Mirador’s album. “Dave Cobb was like, ‘Look, this is a guitar record by two guitar players.