DIY Dampers

proud indian · 3881

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Offline proud indian

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on: December 16, 2012, 06:24:06 AM
Take a key chain. Cut it in the place where the ring completes the circle.( I am talking about the ring of the key chain) At that point, there will only be one wire. Once you do that, you will 2 "C" shaped ring like the Halo's.( you may have to clip it widen the C shape)  Now put in any type of dampers to slide over the ring and ensure it touches the tube.  The gap in the ring is important.
You are business.
I took a silicon tube, taped it with teflon tape and it looks expensive !!!!


shreekant :)

system 1. oppo, quickie,SEX 2.1 ( V cap), Decware DFR8 in ZOB cabs
System 2. Tascam cd200, Terra Dac,Zbox,Decware Zen amp(V cap) Lowther PM6A in Acousta horns.
Maple rack, Brass footers,Power conditioner, dedicated treated room, iso pads, plenty of tubes. All cables DIY.

4krow

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Reply #1 on: December 16, 2012, 04:38:36 PM
Shreek, how do you like the DFR8 in the ZOB so far?


Offline proud indian

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Reply #2 on: December 16, 2012, 06:46:43 PM
Ok. I still think the design falls short in the mid bass area. You will need a sub to make it sing. Yes, it does give a nice stage and in my set up, the entire stage is behind the speakers. It images well, so with the open sound, its quite impressive. I have tried various slot opening options, but still feel the design or the drivers need some help. The new drivers at $600+ does not justify a DIY approach.I am better off with a sub, rather than adding a new driver and then finding that I still need a sub.
But having said all that, every time I listen to my second system, which has the Lowthers, I feel that the ZOB does not have the magic. The Lowthers are in a different league altogether, irrespective of all the mods done on the Fostex.

shreekant :)

system 1. oppo, quickie,SEX 2.1 ( V cap), Decware DFR8 in ZOB cabs
System 2. Tascam cd200, Terra Dac,Zbox,Decware Zen amp(V cap) Lowther PM6A in Acousta horns.
Maple rack, Brass footers,Power conditioner, dedicated treated room, iso pads, plenty of tubes. All cables DIY.

4krow

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Reply #3 on: December 17, 2012, 02:22:33 AM
  Shreek,   I know what you mean. I used Audio Nirvana drivers for mine at first, and I can't really remember that well what the sound was like. I do know that I wanted something more. I waited for the FRX2 to arrive, and as much as I like it, I agree with your assessment about the bass. I will say the FRX2 puts out quite a bit more bass than the AN did. I also use a sub on some music or DVD soundtracks with good results. The speaker really doesn't need that much help. One big advance is source material. SACD's have really impressed me with their quality, and these speakers are worthy of them. One more thing, I did add a tube based buffer amp to my setup, and again, a change for the good occurred(in the mid bass).


Offline Yoder

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Reply #4 on: December 18, 2012, 03:34:47 PM
Here is how I build my tube dampers. They are actually rather slick looking once they are on. http://co-bw.com/DIY_Tube_Dampers.htm


Offline earwaxxer

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Reply #5 on: December 18, 2012, 03:56:06 PM
They do look good! - Kind of bolted on. Hose clamp look.

Eric
Emotiva XPA-2, Magnepan MMG (mod), Quickie (mod), JRiver, Wyrd4sound uLink, Schiit Gungnir, JPS Digital power cord, MIT power cord, JPS Labs ultraconductor wire throughout, HSU sub. powered by Crown.

Offline corndog71

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Reply #6 on: December 18, 2012, 04:30:33 PM
That's pretty clever, Yoder.  I like the look.

Fortunately for me I haven't felt compelled to go there with my Ultimate Quickie. ;D 
Lining the box with Dynamat Extreme really did the trick.

The world was made for those not cursed with self-awareness.

Rob

Offline Yoder

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Reply #7 on: December 20, 2012, 05:43:38 AM
Quote from: earwaxxer on December 18, 2012, 03:56:06 PM
They do look good! - Kind of bolted on. Hose clamp look.

A "stainless steel hose clamp" look at that!


Offline Zimmer64

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Reply #8 on: December 22, 2012, 05:28:16 AM
Inspired by an earlier post, here is my attempt. Got those from the local hardware store. Those are water pipe clamps with rubber on the inside. CHF 3,70 (that's about $4) for the two of them. Microphonic reduced quite a bit, but not totally gone. The frequency causing the microphonic ringing changes with the amount of tightening the screws. So I will play around with it a bit.

Michael

Nelson Pass F5 Turbo V2, Quickie (mod), S.E.X. 2.1, Tubes4hifi SP14, Dynaco VTA ST 70, Tubelab SSE, Vroemen Diva Superiore ER4, Jordan JX92S VTL, 47 labs 0647 CD, Aqvox DAC, Rowen Absolute pre / psu / power amps, BG Neo3 / Betsy / Eminence A15 open baffles

Offline earwaxxer

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Reply #9 on: December 22, 2012, 05:32:37 AM
That thing you DEFINITELY could not take on a airplane!

Eric
Emotiva XPA-2, Magnepan MMG (mod), Quickie (mod), JRiver, Wyrd4sound uLink, Schiit Gungnir, JPS Digital power cord, MIT power cord, JPS Labs ultraconductor wire throughout, HSU sub. powered by Crown.

Offline corndog71

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Reply #10 on: December 22, 2012, 06:07:02 AM
Love the red plate.

The world was made for those not cursed with self-awareness.

Rob

4krow

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Reply #11 on: December 22, 2012, 07:24:48 AM
I like the look much better, and i think it may have greater contact area.


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