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Isolating panel from woofer on Sequels

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louishob

Guest
I've read information that suggests two things to improve the bass of my Sequel 1 woofers. (Actually three if you include buying a subwoofer.)

1. Remove the metal grill from in front of the woofer. Since I have no intention of providing two more scratching posts for our cat, this one is out.
2. Isolate the woofer from the panel with some sort of sound dampening.

Does anyone have any suggestions on what type of sound dampening material and the best way to install it ?
 
D

dyazdani

Guest
I'm assuming #2 is designed to keep the panel from vibrating as much? I'm not so sure that mounting the woofer with a compliant material between it and the enclosure is a good idea.

You might first try to add weight on top of the enclosure and see what you think. It's a lot less work anyway...
 

Jeff Zaret

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If you are trying to "increase the bass of the Sequels" there are a few things you can try.
1) Are they bi-amped? This will make the speaker "more efficient" with the overall sound and actually improve your overall bass response.
2) Check to see if the screws that hold the woofer in place have not loosened over time because this can happen.
3) Have you looked in to replacing the woofer? Overtime the woofer can loose its ability to be as reactive as it once was. Also, speaker technology and manufacturing processes have also changed and improved over time.

Just some ideas that may help

Jeff :cool:
 
R

Rouvin

Guest
Woofin' up the Sequel

Re:
2. Isolate the woofer from the panel with some sort of sound dampening.

I'm not an engineer or physicist, but the woofer seems more likely to influence the panel than the panel does the woofer.

The bass was most improved on my Sequel Z's by:
1. Putting my tube amp on a Mapleshade 4' maple platform, with their recommended footers and supports, despite the fact the amp was on a slab floor. Made no sense to me that a slab could be a source of woofer degrading vibration, but the results were immediately apparent there and in the midrange.
2. Mapleshade Ver II Power cord on the preamp (just two days ago) distinctly making the bass more articulate and fast. Replaced another after market PC with this, a distinct improvement. I know this PC had gotten some negative comments some time ago in this forum based solely on its appearance, and it ain't impressive looking at all, but the results spoke for themselves to me --- and I had plans to sell it immediately if it didn't measure up. Now I may get more for elsewhere in the systyem.
3. Replacing the Chinese 12ax7's in my TAD 150 signature with Telefunken smooth plates. Again, more articulate bass, and benefits throughout the speaker's range. Now I wamt to try other tubes.
4. Different interconnects between various components. I won't get into this debate on the merits of different interconnects because everyone has opinions and favorites.

All of which suggests to me that there are lots of places within the system to improve this without getting into attempted mods to the speaker. Most all of the stuff I suggested, including the tubes, are for things that can be returned without any penalty other than S&H each way, so are easily and painlessly undone if they doesn't work.

If you consider how many variables there are to interact before the signal even gets to the speaker, experimentation makes it apparent that many things can affect the sound as it emerges in your listening room. Then there's room treatment, spikes, placement and Q-tips for yoiur ears...
 
P

pro-dave

Guest
Spikes are the #1 thing you can do then try putting a 25 lb weight on top of each box.
 
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