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

Easy Shipping

Quick Dispatch:

Your THD BiValve 30 Head orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your THD BiValve 30 Head ships.

Need Help?
Questions about THD BiValve 30 Head, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for THD BiValve 30 Head in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

As a professor teaching post traumatic stress reaction to graduate and undergraduate students, I was looking for a book that hit the basics along with some key pieces regarding assessment, diagnostic criteria, and examples that highlighted some of the subtleties associated with complex trauma. This book is well organized and not too overwhelming for people new and beginning the field and a nice refresher for seasoned clinicians. Easy to read, clearly outlined to build upon each subject, I found it both a solid read, affordable, and made it a required read for my course. Please note that I purchased this book way back October 12, 2013 but only now getting to put my thoughts in writing.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 21, 2013

Verified Purchase

Nikkie A. Rice

Natrona Heights, US

★★★★★ 5

Mandatory purchase

Format: Paperback

Purchased for a course. Good material

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 17, 2026

Verified Purchase

Oq291

Grantham, US

★★★★★ 4

Good Book

Format: Paperback

Informative book that brings understanding and research ideas for students. Will be keeping long term for other classes to reference.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 14, 2026

Verified Purchase

Lisa B.

Natrona Heights, US

★★★★★ 5

Great interventions and Trauma Theory

Format: Paperback

This a great book if you work with victims of trauma and want to understand how different types of trauma can present and what interventions can be used (i.e urge surfing, cognitive restructuring, focus breathing, etc.). It also include a section about medications and what to address first in treatment. I think it’s great for new clinicians who may be looking for interventions to add to their clinical toolbox.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 4, 2020

Verified Purchase

Chuck

Los Angeles, US

★★★★★ 5

Great book

Very practical and simple read, I would recommend that any mental health provider read this. I think it is a great resource.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 1, 2023