Had anybody tried this

@geoffkait


Your statement make sense but I am lazy and let me see my 1 day’s impression.

Later I can try to remove one by one to observe the difference.

@geoffkait 


Thanks a lot for useful information.

It will be fun project for 70 bucks.

I will report it after trying several options.

With more bells, bass got more dynamic, but with it more sibilance too.

Now I realize that my system got tamed too much without edge.

With 7 bells, I am getting just enough sparkle and freshness out of my speakers.

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@roxy54

I am listening in third floor attic with no side wall(open).

At this moment  I am enjoying sweet voice of Elvis.  "Love me tender"

I will try to place it on back side of speakers or opposite side from using 8 to all 30 bells.

I will report my finding probably next week.

I got delivery of 30 bells this morning.

I had put on 10 bells  behind the speakers.

It seems to give some sparkle.

I will listen for a day and then I will try 10 more on the opposite side.

Any tweaks can be dependent on system and personal taste.

If you are curios, you have to try yourself to find out.

I am playing Elvis Presley.

Somehow I got the impression that his voice come out more clearly.

It could be due to resonance out of bells.

Some tolerable sibilance which also depends on personal taste.



Any tweaks can be dependent on system and personal taste.

If you are curios, you have to try yourself to find out. since it cost less than 20 bucks for 10 bells plus shipping.

I ordered 30 not to pay shipping( over 50$ free) and I got it in 3 days after order.

This is a cheapskate experiment that more people can afford.


So far even soundstage appears to get wider and deeper with more dynamics.

The only bothering thing is sibilance out it, I will try to find way to control it.


Any tweak can be dependent on system and personal taste.

Thus it may not work in your system.

But you can waste just 25 bucks or so.

Many people can afford it.

I had reduced no of bells from 10  to 7 by taking out upper ones.

Now it has just good enough sparkle.

Eva Cassidy' "Field of Gold" sound fresh and marvelous.

Good News!

After placing 5 Perfect Path Technology E-cards near power cords,

the sibilance subdued substantially.

This could be the way to combine the better focus by bell with natural sound by E-card.



The only problem is that E-card is much more expensive(300$) than bells.

https://www.audiogon.com/listings/lis960c4-perfect-path-technologies-alpha-e-card-much-anticipated-h...

.

I will experiment it further.

@geoffkait 

As you mention, there are too many variables, but it is not that easy to change placement behind the speakers with lot of cables.

It will take time and I will keep doing experiment few more days and report the progress.


@To everybody who like tweaks.

If you like lively sound with more sparkle, then you shall try this yourself.

It cost around 25 bucks for 10 bells and blue tack.

That is not much money for tweak.

There are lot of variables like positioning bell in the right direction.

After replacing Amperx 6sn7(Bugle Boy) with Bad Boy , the sibilance is almost gone.

I placed more bells behind the speaker close to the floor.
Wow bass got tighter and more tuneful.

I am listening to "The Wall" by Pink Floyd.

It sounds terrific.

You shall try this yourself at 25 bucks for 10 bells from E-bay, using Blutack