Speakerplans.com Homepage
Forum Home Forum Home > General > Advanced Discussion
  New Posts New Posts RSS Feed - Amplifier power rating vs. frequency
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Amplifier power rating vs. frequency

 Post Reply Post Reply Page  <12
Author
Message
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Offline
Points: 7199
Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2020 at 1:06pm
Originally posted by Fred_dibna Fred_dibna wrote:

Originally posted by Earplug Earplug wrote:

I think that you´ve already got your answer! Why do you not think so?

To sum up:-

1)  You can´t 'ignore' the speaker. It is part of the circuit. Just like you can´t ignore the cabinet in which you place the speaker. It´s a complete system. Everything influences the other. And definitely not the same as driving a simple resistive load. It´s quite likely that you amp might be able to drive a 'simple resistive load', but what good is that? Your manufacturer is obviously aware of the limitations of their product and so print it on the box!

2)  Under rated components/engineering and cost cutting. Not all '1kW amps' are born equal! 





Could it not be that the amplifier power supply isn't big enough so cannot drag enough power from the mains supply? We all know frequencies below 100hz need far more power than midrange or high frequencies. Obviously because like has already been mentioned that the low frequency cones are much bigger and voice coils too. Also it might be because the amp has inadequate cooling to keep cool so many amps can go into thermal shutdown if you ask it to do too much in terms of low impedance loads of run them too hard with bass heavy music material.



Yes, definitely. A lot of amps just give 1kHz specs - but driving a sub at 30/40Hz is completely different. And it becomes more of a problem with all the crappy Class D amps we now have floating around. Like I say, under rated components to cut costs!



Earplugs Are For Wimps!
Back to Top
 Post Reply Post Reply Page  <12

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.094 seconds.