Welcome Guest ( Log In | Register )

Outline · [ Standard ] · Linear+

 Need Help - Speaker Power Handling, Need Help - Speaker Power Handling

views
     
TSjsng
post Oct 21 2009, 03:04 PM, updated 17y ago

New Member
*
Junior Member
33 posts

Joined: Nov 2005


Hi all ...
A quick question .. might be a dump question .. hope u all dun mind ... sweat.gif

If my speaker is stating that the max power handling is 100w, Nominal impedance = 8ohm, can i use an amplifier that is having 125W per channel to drive this? Since the power delivered by the amp is higher than the power the speaker can handle, will it damage the speaker?

Thanks and hope to hear from you all ...

Regards,
JS
TSjsng
post Oct 21 2009, 03:27 PM

New Member
*
Junior Member
33 posts

Joined: Nov 2005


Some article did provide the following guideline:
"In general, the amplifier power needs to be larger than the speaker's rated power. This is because an amplifier only delivers its rated output power with sinewave signal, and delivers much less with a real signal with dynamics. As ageneral guideline, it is recommended to use an amplifier delivering 50% more power than the speaker's average ("RMS") power. For example, for a speaker with 450W average power, an amplifier with an output of 700W may be used. If a small amplifier is used, sufficient level will not be reached, nor the perception that it is attained, so the signal will tend to be clipped to compensate, thus endangering the integrity of the speaker."

But assuming an amplier is claiming that it will be able to deliver constant 125w and the max power that the speaker can handle is 100w, do you think this works fine?
TSjsng
post Oct 21 2009, 03:43 PM

New Member
*
Junior Member
33 posts

Joined: Nov 2005


QUOTE(anfieldude @ Oct 21 2009, 03:29 PM)
Before we go further, can you let us know what the speaker and the amp is. The reason I ask,is if it is an AVR and you are driving more than 2 channels, chances are it will be much lower output.

Also is the 125w RMS or peak?
*
The speaker that i am using is the B&W DM602, rated as max power handling = 100W (RMS) and Norminal Impendence = 8ohm.
I am trying to get the Onkyo TX-SR706 or 606, which is having a 7*125w (RMS), so i am just worried that it may not match. A bit lazy to bring this heavy stuff to the shop .. hence ask some of you guys here and hopefully can get some good advise tongue.gif

TSjsng
post Oct 21 2009, 03:55 PM

New Member
*
Junior Member
33 posts

Joined: Nov 2005


QUOTE(anfieldude @ Oct 21 2009, 03:49 PM)
jsng,

Are you planning to use the Onkyo for 2 channel music or for 7 channel movies? Or is it for both?
*
For both smile.gif
but mainly for movie ..
TSjsng
post Oct 21 2009, 04:18 PM

New Member
*
Junior Member
33 posts

Joined: Nov 2005


QUOTE(azbro @ Oct 21 2009, 04:12 PM)
Quick answer...

Sure can, no probs..
*
muahahaha u r quick as well rclxms.gif
Thanks anyway ...
TSjsng
post Oct 22 2009, 01:29 PM

New Member
*
Junior Member
33 posts

Joined: Nov 2005


QUOTE(azbro @ Oct 21 2009, 04:55 PM)
As long as the max RMS Watt of the speaker and the power amp is not a big difference there should be no probs..

But check also the power amp impedance handling.

The problem comes when you have a 20W power amp and powering a 200W speaker at full blast..
Since the power amp has so little watts, what comes out of it is distortion rather than clean signals.
Distortion breaks speakers

or

Using a 200W poweramp to a 20W speaker at full blast...
*
OK .... thanks all .. i believe i got the answer now :-)
Again .. thanks .. biggrin.gif

 

Change to:
| Lo-Fi Version
0.0175sec    0.31    6 queries    GZIP Disabled
Time is now: 22nd December 2025 - 01:49 PM