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2010 Alvarez by Kazuo Yairi Masterworks YBM1E Baritone Jumbo Acoustic Electric Guitar w/ Case


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Up for sale, a 2010 Alvarez by Kazuo Yairi Masterworks YBM1E baritone jumbo acoustic/electric guitar in exceptional condition and in perfect working order, complete with an Eastman molded hardshell case. Crafted at Kazuo Yairi’s workshop in Gifu, Japan and outfitted with Alvarez’s System 600T Mk. II electronics, this Masterworks baritone jumbo is 1 of 3 produced at this model tier. The guitar projects and rumbles with the best, delivering a broad, warm low end, plenty of midrange warmth, and sweet, singing treble articulation.

Tuned B to B, a fifth below standard guitar tuning, this Yairi features an X-braced spruce top, rosewood back and sides, mahogany neck, and an ebony fingerboard. The tone has a glassy quality that complements the inherent warmth and richness of the longer scale length and heavier string gauge. The lower bout body width measures 17 1/8“, with a depth of 4 3/4“, ensuring there’s plenty of kick, volume, guttural growl and deep resonance. The Alvarez System 600T Mk. II electronics do a great  job capturing the natural sound of the instrument, with a bevy of tonal sculpting options to ensure the optimal plugged-in tone for any live situation. This Alvarez weighs 5lbs 6oz, professionally setup here at Mike & Mike’s Guitar Bar with 15-70 bronze strings and easy-playing action.

The mahogany neck has a substantial soft V-shaped profile carve with ideal heft in every register, measuring .890” at the 1st fret and 1.015” at the 9th. The bound ebony fretboard features an understated inlay at the 12th fret, and the stock slender fretwire is nigh flawless. This guitar plays cleanly in all registers with a straight neck and a responsive, optimally-adjusted truss rod. The scale length measures 27 3/4“, and the nut measures 1 11/16” in width. On the headstock, the Alvarez-branded Gotoh tuning machines turn smoothly and hold accurate pitch, with bright gold plating.

On the body, the ebony bridge sits flush with the top on all edges with six individual saddles. The Alvarez System 600T Mk. II electronics all function as intended, powered by a 9V battery and featuring a built-in tuner, with a bevy of tonal sculpting controls including Master Volume, Mid Frequency (600-1.2kHz), Frequency (50-2kHz), Aux and Piezo Gain knobs, plus Treble, Mid, and Bass EQ sliders (offering +/-15dB of each) and Notch, Level +20dB, and Phase buttons. The original label is visible through the soundhole, and the heel block retains the factory stamps and luthier’s signature, dating this instrument to 2010. The transparent pickguard has some requisite scuffing along the strum path.

Well-kept and crack free, the gloss Sunburst finish is framed by multi-ply grained ivoroid binding. Cosmetic wear is limited to an area of light buckle rash on the back central to the waist and just a handful of faint scratches on the body as a whole. The neck profile retains its smooth satin finish, with a few shallow dings behind frets 9-10 that have no impact on playability.

An Eastman silver molded hardshell case is included.