Dynaudio Audience 52se 'popping sound'

[ravi6561]

I have recently upgraded my Dynaudio audience 40 speakers (which i think were fantastic for their price and size!), and have brought a second hand pair of Dynaudio's audience 52SE.

Everytime their is a bass heavy part in the music when loud-ish, I hear this immense "poppinp", from both speakers, but sometimes from just one and not the other. I never experienced this with the Audience 40's. I am using an arcam A85/P85 combo which delivers 85 watts/8ohm per channel. Do i need a more powerful amp, or do the 52SE's simply use a rubbish mid/bass driver?

Thanks

 

[markw]

It sounds to me like the new speakers are reaching the extent of their excursion and slapping against parts of the speaker they shouldn't.

IOW, they either aren't designed to handle that much power or they are broken.

then again, I've heard horrible sounds when an amp was being overdriven. Can you substitute a more powerful amp on a trial basis?

 

[davidtwotrees]

Wow. I can't imagine Dynaudio 52 SE's having rubbish drivers!
Is is possible they were banged up when shipped?
Did you tear your rig down recently?
Are you sure all your gear is hooked up properly?

 

[cfrizz]

You need more power! Dynaudio tower speakers are all 4ohm minimum! So they need lots of juice to sound good & to not burn up themselves or your receiver. Start looking to upgrade your amp to the 200wpc variety at least!

 

[j_garcia]

The Arcam should have no problem driving 4 Ohm speakers, though it may still be not enough power for the speakers in question. I heard the A80 driving some pretty nice speakers and I was impressed with it.

 

[gene]

You need more power! Dynaudio tower speakers are all 4ohm minimum! So they need lots of juice to sound good & to not burn up themselves or your receiver. Start looking to upgrade your amp to the 200wpc variety at least!

that's a bunch of bunk and the same excuse Dynaudio tried to feed me when I found the same issue with these speakers. The problem is, they are tuned too low and the drivers have insufficient excursion capabilities to handle it. This is a common problem with bookshelf speakers attempting to produce bass at high SPL levels that they simply cannot do. The simple solution is to cross them over at 80Hz and let the sub handle it.

This speakers should NOT be run full range if you plan on throwing any dynamic material at it.

http://www.audioholics.com/reviews/speakers/bookshelf/dynaudio-52se

 

[davidtwotrees]

I was thinking these were towers......but that must be the 72SE. Boy, isn't that something, Gene, I always thought Dynaudio was world class audio. I guess the Audience line is their budget line......but still, after reading your review I was frankly flabbergasted that a world renowned speaker builder would sell a $1500 speaker that "bottomed" out.

Does your review tell us that the bookshelf design is really made to be used with a sub?

 

[Seth=L]

The sound is the voice coil making contact with the magnet structure. This is very bad on the speaker and can permanently damage the voice coil and may cause the speaker to stop working with prolonged damaging use, and is a result of overpowering (rare) rather than underpowering (more common way speakers are damaged). If you hear the sound immediatly turn the volume down. I would follow the suggestion made by Gene, set the x-over to 80-100 hz or so, and set the speakers to small.