SKU: 36982191907

SMD - Distortion Detector DD-1+

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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

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Description

SMD - Distortion Detector DD-1+The purpose of this tool is to enable the installer to set the gain of an audio amplifier to match the source units output level, accurately and quickly. It can also be useful for detecting distortion in the audio signal caused by poorly designed or malfunctioning audio equipment. What is the difference between this and the original DD 1+? Sets audio system gain overlap, continuously variable from 0. 0dB 15. 0dB in 0. 1dB steps Checks gain overlap of

The purpose of this tool is to enable the installer to set the gain of an audio amplifier to match the source unit’s output level, accurately and quickly. It can also be useful for detecting distortion in the audio signal caused by poorly designed or malfunctioning audio equipment.

What is the difference between this and the original DD-1+?

  • Sets audio system gain overlap, continuously variable from 0.0dB - 15.0dB in 0.1dB steps
  • Checks gain overlap of an audio system without making any adjustments to the existing settings
  • Verifies that the gain overlap of an install hasn't been tampered with after install
  • Features our Patent Pending Distortion Detection system plus digital microcontroller and our proprietary firmware
  • 200V maximum input (same as DD-1 HV)
  • Quasi-RMS voltmeter (can detect clipping at any frequency)

What is included?

  • The Distortion Detector PLUS (DD-1+)
  • Protective silicon rubber boot
  • Calibrated Test tone CD
  • Harness
  • This manual
  • Pride of ownership

About the Design

When you pick up the DD-1+, know that you are holding a precision piece of equipment.  If treated as such it should provide you with many years of reliable service. 

Specification

  • Distortion Detection trigger level > 1.0% Harmonic Distortion

  • Guaranteed operating range of input signal is 1.2Vrms – 200Vrms.  (40,000 Watts at 1ohm) Autoranging

  • Low Battery LED trigger battery voltage < 6.5Vdc

  • Auto-shut off timer 8 - 10 minutes after ON button is pressed

  • Battery self-test and display of condition when DD-1+ is initialized

  • Shipping Box 9 x 6 x 2 inches, 2 lbs

Documentation:

Owner's Manual (PDF)
DD-1+ Test Disc Read Me (PDF)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 36982191907

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4.6 ★★★★★
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K
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Karla Tipton
Carnegie, US
★★★★★ 5
Accessible and insightful guide to project management
Format: Kindle
"Project Management Mastery" describes the science and art of project management in a highly accessible and insightful way. This guide is written in understandable language for beginners and can also be a refresher for seasoned project managers. The guide fully describes the concepts of planning, execution, monitoring and control, and closure. Each chapter layers new information upon the foundations of the previous chapters by addressing basic concepts and building on details. This book uses project management terminology, but defines it so the concepts are clear, not fuzzy. Also discussed in depth is the importance of team members' responsibilities and accountability, and the importance of team motivation. There is a detailed exploration of the differences between various project management methodologies, such as Agile, Waterfall, SCRUM, Kanban and other models. Also described is the methodology of PRINCE2, used primarily in the UK and Europe, as well as hybrid project management models. There is guidance on which methodology works best for the project being planned. The guide also addresses the impacts and benefits of how using AI might impact the completion of routine tasks in the project management lifecycle. Also included is a comprehensive list of references at the end, for those wanting to dive deeper into the subject. Overall, this is a great guide for new project managers, as well as a solid refresher for those reentering the field, or looking for an updated perspective.
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Reviewed in the United States on June 24, 2023
J
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James R. Massoni
Fort Morgan, US
★★★★★ 5
Mastering Project Management
Format: Kindle, Format: Kindle
What a wonderful book on project management. The author describes what project management is, how to create a project plan, and the different phases that exist. He covers traditional project management and newer versions of it that have evolved, such as Waterfall, Agile, Scrum, and PRINCE2. The author explains the various types of project management, what are the important tenets of each and which is best for different types of projects. He goes into a lot of detail into each phase, different software you can use, along with visualization tools available like Gantt Charts and Kanban boards. It is a good comprehensive book that goes in to detail into each area of project management, what you should do to be successful and the various places that project managers typically fail. Finally, he covers final deliverables, project closer and doing a project review and releasing resources. I thought it was a very good book, well done and one that any project manager would love to have as a resource.
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Reviewed in the United States on August 24, 2023
J
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Jeanna Read
Whiting, US
★★★★★ 5
For The Seasoned Project Manager and the Beginner
Format: Kindle, Format: Kindle
It takes a talented writer to write for the expert and the beginner in the same book. But that is how Mr. Hayden writes in this book. It is obvious he is an experienced Project Manager, and he not only gives advice, but gives you an overview of project management in general, and the foundations of it. But then he jumps right into the meat of the matter - and lays out so many ways to start the project, including so many methodologies to use. He includes the SWOT method, that I used with my teams, but there are so many more that I could have used! I love the way he lays out a plan for you to use - he doesn’t just give you ideas, he lays it out in a way that you can implement it successfully, and more importantly, confidently. That is so important when leading a team! I highly recommend this book to any level of project manager! And not just those in a project manager position - also for those professionals who are leading a project even though they are in other roles in their company.
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Reviewed in the United States on October 10, 2023
J
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Javier
Cuba, US
★★★★★ 5
Excellent book with real-world examples and clear explanations.
It covers both traditional and agile methodologies, making it perfect for professionals or those studying for certifications. Easy to follow and packed with practical insights.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025
S
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S. Wiley
Fort Morgan, US
★★★★★ 5
A helpful guide from start to finish
Format: Kindle, Format: Kindle
I like how user-friendly this book is! Anyone that is in a leadership position can learn a lot from this book. Anyone in charge of heading up a specific project will really benefit from this book’s teachings. There are a ton of visual charts, diagrams, and illustrations throughout the book with relevant examples to help you navigate your plan. The book starts out with the planning phase of the project and walks you through how to implement goals, how to stay on track when changes come up, how to close out projects in phases, and so much more! Also noteworthy is the helpful summary at the end of each chapter making this a resource you can quickly come back to and reference as you take on your project!
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Reviewed in the United States on October 7, 2023

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