87 x 33 x 39 mm (plug retracted)

and this achieves that

The only active ABY switcher that can be powered by battery as well as a 9 or 12V DC adapter

Also new in the bass model is a compressor that’s an important part of shaping your sound

Billy Corgan (Smashing Pumpkins)

Yamaha A1M - Vintage Natural Brand_Gretsch 87 x 33 x 39A Series The Next Level Designed to be the ideal performance acoustic guitar, the Yamaha A Series is crafted from the ground up, perfectly suited for life on the road. With legendary, Yamaha road ready construction, the it's the perfect guitar to take your playing to the next level. The A1M features a solid Sitka spruce top with scalloped bracing, mahogany back and sides and the Yamaha original SRT piezo pickup for solid, plugged in performance.