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A 300 liter box tuned to 25 hz would be the minimum ( -3 db at 32 hz). A more ideal box is 550 liters tuned to 20 hz. This gives you a very shallow roll-off from -3 db at 55 hz to -4 db at 23 hz. The incredibly low excursion of the woofer shows it bottoming out with more then 20 watts when you get below 40 hz.
Messages. 97. Popping sound can be a symptom of the speaker surround which attaches the cone to the basket (metal frame of the speaker)being torn. The popping sound results when the speaker voice coil rubs against the tube in which the voice coil travels. Try listening at very low volume and see if you hear the popping.
If you had a CD with 1/3 octave test tones from 10Hz to 20000Hz, you could just "feel" the cone as you plays tones of frequencies 10, 12, 15, 17, 20, 22, 25, 28Hz at low volume levels. When you get to the frequency where the cone doesn't move much at all, that'll be the resonant frequency, give or take 2Hz.
I was watching a hockey game and the subwoofer started "popping" almost like it was clipping. I checked the speaker cone and it was intact. The crossover is set to 80Hz on the speaker and the volume control is set to about 60%. Changing the crossover frequency did nothing...changing the volume control, however did. Higher, it popped more.
Even at very low volume I can hear the problem noise but the cone never comes close to the wires. I'll post a video tmw so you can see the sub in action and also hear the noise its making. thanks! Nov 15, 2010
Conclusion. The M&K Sound X15+ doesn’t seem to fear any content, no matter how high you crank the volume it just keeps getting louder. If you do somehow reach a point where it can’t go any further it smoothly engages protection mechanisms and prevents itself from coming undone. The X15+ subwoofer is insouciant when driven, it doesn’t care ...
It's better aesthetically than the last volume, I agree. However, the position of the railroad crossing light looks a tad odd to me. And just what is Kimble leaning on that is placed directly in the path of the tracks? When you photoshop various elements (and just about all TV-DVD sets are), inevitably logic takes a backseat.
Auditioning. Joined. Jun 2, 2003. Messages. 2. The last time I checked, I wasn't in the market for a new set of speakers. Then I came across the opportunity to buy a pair of used Carver AL-III Plus speakers for $350. I'd like to get some opinions on these speakers. On audioreview.com the AL-III's received numerous glowing reviews.
With deep, fast bass and a gorgeously crafted cabinet, the SVS SB16-Ultra offers reference quality lows that integrate seamlessly thanks to its handy app-based DSP controls. Some port noise at extreme volumes and a high $2299 price may limit appeal, but overall it delivers powerful, clean bass in an attractive package.
To prevent the woofers from flopping about and possibly polling during transport, short out the input terminals of the speaker. This damps the speaker movement very effectively. (Try moving the cone with and without the short to see what I mean). Oh, and don't forget to remove the short before hooking them up again.