THD BiValve 30 Head

Marsoni

M251S

$499.50

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

THD BiValve 30 HeadThe BiValve 30 is a Single Ended Class A amplifier head that allows for versatile tonal experimentation by switching between various octal based power tubes, such as 6L6, EL 34, and KT 66, without the need for re biasing. You can mix and match any combination of output and preamp tubes (12AX7, 12AT7, etc.) to achieve different sounds. This amp delivers a range of tones from smooth and clear to aggressive overdrive, with a powerful output transformer

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I absolutely love my Timex Ironman watches. I have had many over a very long period of time. Wonderful set of functions for the price. Very affordable. Easy to use. Lasts a long time. Very easy to read in standard lighting. I like the Indiglo when needed, but do not use it too often. Absolutely love the ability to set a repeat timer to remind me to do something at a fixed interval, or to keep me on task for a fixed period of time. Great to be able to set three independent alarms. Potential to capture a huge number of splits with the stopwatch. I purchased this watch to replace a similar model with a dead battery. I have replaced batteries in the past, but it is quicker and easier to buy a replacement watch. I am saving my old watches for that day in the future when the Ironman model may no longer be available. I expect this will be my watch of choice for the rest of my life.

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Reviewed in the United States on May 21, 2026

Verified Purchase

E-Dub

Lexington, US

★★★★★ 5

Just fine if you have simple needs...

Color: Black/Digital/Black/Green

Exactly what I needed: a cheap, durable wrist watch. The only thing it was lacking were instructions, but about 5 minutes of messing with the buttons got it set up

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Reviewed in the United States on May 19, 2026

Verified Purchase

S S.

Lowell, US

★★★★★ 5

Nice watch

Color: Black/Digital/Black/Green

Good watch

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Reviewed in the United States on April 30, 2026