Mesa Boogie 50 Caliber Valve 1x12" Combo Amplifier

Marsoni

M251S

$599.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Mesa Boogie 50 Caliber Valve 1x12" Combo AmplifierMesa Boogie 50 Caliber tube combo featuring 4 x EL84 output tubes for approximately 50 watts of power through a Mesa Black Shadow 12 inch speaker. A compact and uncomplicated combo with direct out. Class A Power. Made in the USA. Introduced around 1990, the . 50 Caliber Plus was Mesas answer to players wanting Boogie tone without the stadium sized volume of a Mark series head, featuring footswitchable Rhythm and Lead channel setup, five band graphic

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As a teacher, I carry this with me constantly, and it’s honestly been one of my most-used purchases. The 40 oz size is great because I can fill it once in the morning and not constantly worry about refilling it throughout the school day. It keeps water cold for hours, even when it’s sitting in my classroom all day, and the handle makes it much easier to carry along with everything else teachers somehow end up holding. I also like that it fits in my car cup holder despite being large. The straw lid is convenient for quick sips during class, and the Rose Quartz color is really pretty without being too flashy. The cup feels sturdy and well made, and it’s held up well to daily use. The only downside is that when completely full, it can feel a little heavy, but that’s expected with a large stainless steel tumbler. Overall though, it’s been incredibly practical for staying hydrated during busy teaching days. Definitely worth it if you’re someone who’s constantly on the go and wants cold water all day.

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Reviewed in the United States on May 10, 2026

Verified Purchase

Krista Goodwin

Whiting, US

★★★★★ 5

Love the Color and Keeps Drinks Cold for Hours!

Size: 40 Ounces, Color: Pomelo

I absolutely love this tumbler! The first thing that caught my attention was the color — it’s even prettier in person, and I’m obsessed with it. It has a great look and makes carrying it around fun while still being practical for everyday use. Beyond the color, it works great too. It keeps my drinks cold for hours, holds plenty of water, and helps me stay hydrated throughout the day. The handle makes it easy to carry, and the straw is convenient for sipping on the go. It also fits nicely into my daily routine, whether I’m at home, working, or out running errands. Overall, I’m very happy with this purchase. The color alone had me sold, but the functionality and quality made me love it even more!

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Reviewed in the United States on May 22, 2026

Verified Purchase

Mitzi

New York, US

★★★★★ 5

Favorite Stanley

Size: 30 Ounces, Color: Mahogany Gloss

This Stanley is my favorite for on the go. It keeps my drinks cold and fits snugly in my cup holder. I love the straw for ease in use so it won’t leak. Very durable and easy to carry. Love the color.

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Reviewed in the United States on May 23, 2026