AudioAficionado.org  

Go Back   AudioAficionado.org > Manufacturers Forums > McIntosh Audio

McIntosh Audio A Tradition of Excellence

Reply
 
Thread Tools Display Modes
  #41  
Old 08-09-2018, 10:32 PM
PHC1 PHC1 is offline
Guest
 
Join Date: Apr 2009
Location: Pa
Posts: 23,609
Default

By the way, it will be the tweeter that blows first in almost all cases since clipping generates higher frequency harmonics/distortion and overheats the tweeter. When I designed and built my own speakers back in my electronic education school days, it is exactly what happened on more than one occasion. Could not afford a good quality amp with brawn back in those days but loved my music loud. Replacement tweeters were the norm.
Reply With Quote
  #42  
Old 08-09-2018, 11:22 PM
damacman damacman is offline
Blown & Injected
 
Join Date: Jun 2015
Location: Gilbert, AZ
Posts: 794
Default

Quote:
Originally Posted by nalthien View Post
Thank you for a simple and effective explanation of one of the biggest misunderstandings in amplifier / speaker pairing!
You're quite welcome - I was in the industry for 20yrs and trained professionals while employed at this little company called Rockford Fosgate. As this topic came up so much with our dealers, and everyone had a different spin on it, we had our competitive analysis dept do a comprehensive study and all myths dispelled. When we taught dealers how to take this into account in the system design phase, their returns would drop to near zero.

Serge - I stand by my remarks as factual. Incidentally, the guy that did the study mentioned above went on to found Cogent Audio Labs here in Mesa. The guy that created the DD-1 was also a coworker and went on to found D'Amore Engineering and Diamondboxx. Both are very close friends and mentors.
Reply With Quote
  #43  
Old 08-09-2018, 11:28 PM
nalthien nalthien is offline
Guest
 
Join Date: May 2015
Posts: 257
Default

Quote:
Originally Posted by damacman View Post
You're quite welcome - I was in the industry for 20yrs and trained professionals while employed at this little company called Rockford Fosgate.
The last two times I did custom audio installations in my car, I used Rockford Fosgate subwoofers drivers and amplifiers. My wife managed to blow a couple of the 12" Prime subs!
Reply With Quote
  #44  
Old 08-09-2018, 11:43 PM
PHC1 PHC1 is offline
Guest
 
Join Date: Apr 2009
Location: Pa
Posts: 23,609
Default

Ok, so here is Rockford Fosgate then. https://www.rockfordfosgate.com/rnt/...lean_howto.pdf
Reply With Quote
  #45  
Old 08-10-2018, 12:05 AM
damacman damacman is offline
Blown & Injected
 
Join Date: Jun 2015
Location: Gilbert, AZ
Posts: 794
Default

Quote:
Originally Posted by PHC1 View Post
Ok, so here is Rockford Fosgate then. https://www.rockfordfosgate.com/rnt/...lean_howto.pdf
I am aware. However, that’s an oversimplified curcuit to enable the end user to set their gain controls without any specialized equipment. It has nothing to do with our discussion of power.
Reply With Quote
  #46  
Old 08-10-2018, 12:06 AM
damacman damacman is offline
Blown & Injected
 
Join Date: Jun 2015
Location: Gilbert, AZ
Posts: 794
Default

Quote:
Originally Posted by nalthien View Post
The last two times I did custom audio installations in my car, I used Rockford Fosgate subwoofers drivers and amplifiers. My wife managed to blow a couple of the 12" Prime subs!
Prime was after my tenure ...
Reply With Quote
  #47  
Old 08-10-2018, 12:26 AM
PHC1 PHC1 is offline
Guest
 
Join Date: Apr 2009
Location: Pa
Posts: 23,609
Default

Quote:
Originally Posted by damacman View Post
I am aware. However, that’s an oversimplified curcuit to enable the end user to set their gain controls without any specialized equipment. It has nothing to do with our discussion of power.
Well, I really have nothing more to add to this conversation. The bottom line is still that clipping can and does damage speakers when the conditions are right. Whether one blows the speakers up with a clipping amplifier or with an amplifier with way too much power, the result is the same. Common sense in the first place and a distorted sound as the last warning should be more than enough to prevent such an event. As far as your discussion of power and clipping that goes AGAINST every article, video and my own knowledge, well, what can I say? We will have to agree to disagree.
Reply With Quote
  #48  
Old 08-10-2018, 12:46 AM
nalthien nalthien is offline
Guest
 
Join Date: May 2015
Posts: 257
Default

Quote:
Originally Posted by damacman View Post
Prime was after my tenure ...
It might have been a different line. It was about 10 years ago so I'm not positive I have it right.
Reply With Quote
  #49  
Old 08-10-2018, 12:49 AM
PHC1 PHC1 is offline
Guest
 
Join Date: Apr 2009
Location: Pa
Posts: 23,609
Default

Well, OK, this video is just too good not to share.

How much power do I really need? In this video you can see a 200w rated speaker absorbing 750w of clean, not clipped power! Alan Shaw of Harbeth speakers. https://youtu.be/bRMR9JZ1m0s
Reply With Quote
  #50  
Old 08-10-2018, 01:30 AM
damacman damacman is offline
Blown & Injected
 
Join Date: Jun 2015
Location: Gilbert, AZ
Posts: 794
Default

Quote:
Originally Posted by PHC1 View Post
Well, I really have nothing more to add to this conversation. The bottom line is still that clipping can and does damage speakers when the conditions are right. Whether one blows the speakers up with a clipping amplifier or with an amplifier with way too much power, the result is the same. Common sense in the first place and a distorted sound as the last warning should be more than enough to prevent such an event. As far as your discussion of power and clipping that goes AGAINST every article, video and my own knowledge, well, what can I say? We will have to agree to disagree.
Serge - that was the exact same position I had when being presented the results of the study ... no worries.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Audioaficionado.org tested by Norton Internet Security

All times are GMT -4. The time now is 09:22 AM.



Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
©Copyright 2009-2023 AudioAficionado.org.Privately owned, All Rights Reserved.
Audio Aficionado Sponsors
AudioAficionado Subscriber
AudioAficionado Subscriber
Inspire By Dennis Had
Inspire By Dennis Had
Harmonic Resolution Systems
Harmonic Resolution Systems
Wyred4Sound
Wyred4Sound
Dragonfire Acoustics
Dragonfire Acoustics
GIK Acoustics
GIK Acoustics
Esoteric
Esoteric
AC Infinity
AC Infinity
JL Audio
JL Audio
Add Powr
Add Powr
Accuphase - Soulution
Accuphase - Soulution
Audio by E
Audio by E
Canton
Canton
Bryston
Bryston
WireWorld Cables
WireWorld Cables
Stillpoints
Stillpoints
Bricasti Design
Bricasti Design
Furutech
Furutech
Shunyata Research
Shunyata Research
Legend Audio & Video
Legend Audio & Video