Hifi Rack

[sidvee]

Great work as always Magma:clapping:. I am very interested in seeing your other work based on the finite element design.
Cheers
Sid

 

[magma]

sid at the rate im going
youll probably have some grey hair by the time i complete that (unless ofcourse you already do in which case theyll be WHITE) !

will keep you posted

thank you very much for the comments

 

[malvai]

Magma, bro, I'm gonna move in about 3-4 days... Am i going to be blessed by a visitation from you before that? ;-)

 

[jitubisht]

Looks awesome mate!

 

[hifiashok]

friends,

hav finally been able to get things started towards platforms for power amps...

Inside

Underside

Side

Roughly complete

Spikeside

Midside

this is just a prototype (so, part ply in there)

comments, suggestions welcome, so changes are inc. in time.

 

[shershah]

friends,

hav finally been able to get things started towards platforms for power amps...

Inside

Underside

Side

Roughly complete

Spikeside

Midside

this is just a prototype (so, part ply in there)

comments, suggestions welcome, so changes are inc. in time.

bespoke - and a work of art - the grain on the teak is superb

 

[drkavint]

check this out for design
---- JB WOOD INDUSTRIES SDN. BHD. ----

 

[magma]

arre ashok
super

 

[hifiashok]

bespoke - and a work of art - the grain on the teak is superb

danke'. the final MAY be in steam birch, if i get a decent quantity.

 

[hifiashok]

arre ashok
super

danke', aliji. ur stuff sure helps.... will put up the final.

 

[sidvee]

Great work hifiashok! One question though - what is the reason that the bottom of the platform is cut out? I had a thought that if the bottom was full then the platform could be filled with sand adding to mass loading. The top would still rest on the brass footers around which the sand would be added - or is there any advantage to having an open bottom?
Cheers
Sid

 

[malvai]

Great work hifiashok! One question though - what is the reason that the bottom of the platform is cut out? I had a thought that if the bottom was full then the platform could be filled with sand adding to mass loading. The top would still rest on the brass footers around which the sand would be added - or is there any advantage to having an open bottom?
Cheers
Sid

The thought crossed my mind!

 

[prem]

Hi HifiAshok

I suggest you check with Cadence too. In my experience wood with spikes has never worked for me. In most cases they dull the sound and make it a little sluggish. If Cadence has designed the amp using a wood platform then its fine.

When it comes to mechanical resonance i would rather go for a scientifically designed product rather than a tuned product.

Scientifically designed racks are very expensive. What i suggest is try the Wave Kinetics footers under your amp. These footers are designed by a Stanford engineer and cost $700 for 4. A bit expensive but will be definitely worth it. Even with an expensive wooden rack like Finite Elemente, i know people end up using their cerapucs and cerabases under the equipment.

 

[Asit]

Herr Ashok,
Sehr schoen und ueberragend

Could you explain the finer details ?

Regards.

 

[hifiashok]

'very beautiful and outstanding'... thanx sir (and to google translate too ).

will put up all the details once final, if u don't mind waiting, since i had thrown open the discussion to suggestions/corrections before this.

 

[hifiashok]

Hi HifiAshok

I suggest you check with Cadence too. In my experience wood with spikes has never worked for me. In most cases they dull the sound and make it a little sluggish. If Cadence has designed the amp using a wood platform then its fine.

was actually going by the way shirkeji (and atleast two other canasya owners) has set his amps. up (of course, his are on finite elemente pagodes [i may be wrong on the 'pagodes' here, but FE platforms they were]). frankly, hav not really graduated to that level of listening ability yet (to discern what you suggest/mean). waiting for members like kamalji to get better, manavji to shift to g'gn (and a lot more who also are HFV members) to contribute to our continuing the learning. i remember not being able to objectively reply to asitji's query when i intro'd vibrapods and vibracones to my set up.

When it comes to mechanical resonance i would rather go for a scientifically designed product rather than a tuned product.

cannot argue with that. however, as mentioned (not certain if this shows up, tho'), taking baby steps as of this time...

Scientifically designed racks are very expensive. What i suggest is try the Wave Kinetics footers under your amp. These footers are designed by a Stanford engineer and cost $700 for 4. A bit expensive but will be definitely worth it. Even with an expensive wooden rack like Finite Elemente, i know people end up using their cerapucs and cerabases under the equipment.

i guess the present continuity of this hobby keeps this need alive. my start in this direction is with aliji of sound foundations' adjustable brass cones and adjustable double-contour SS spikes, both with similar SS headers/footers (asitji, a part of the 'detail'?).

 

[hifiashok]

Great work hifiashok! One question though - what is the reason that the bottom of the platform is cut out? I had a thought that if the bottom was full then the platform could be filled with sand adding to mass loading. The top would still rest on the brass footers around which the sand would be added - or is there any advantage to having an open bottom?
Cheers
Sid

one of the reasons i am shifting to steam birch from sagwan is the mass. the sagwan (teak) based proto seemed fairly light (the part ply did not help either). also, each amp. is approx. 40kg, so further weighs down. on the sand addn., well, the thought is for isolation of the amp.'s own brass cone feet on the wooden base and the frame below, so the three adjustable brass cones driven in the frame and the SS headers embedded in the wooden base. the frame below is again on three SS double-contour spikes in turn on SS footer discs. i FEEL the sand would reduce this isolation effort by increasing the area of contact/s from the present pin-points. however, will build in a simple option to also try the platforms with sand (lead shot) loaded in them.

 

[prem]

Hi Hifiashok

Yes Mr Shirke uses Finite Elemente platforms. They distribute Finite Elemente in India.

Do experiment with different wood types. They all sound different

Sidvees suggestion is worth trying out. Sand will enable drain out of vibrations faster. Normally people use sand boxes under speakers. But i am sure it can be tried under amps also.

 

[sidvee]

i FEEL the sand would reduce this isolation effort by increasing the area of contact/s from the present pin-points. however, will build in a simple option to also try the platforms with sand (lead shot) loaded in them.

I hear you hifiashok. One option is not to fill sand or lead shot or whatever ballast you are using uptil the footer points, rather maybe a few mm below the tip and that way both the objectives will be achieved.
Cheers,
Sid

 

[hifiashok]

Hi Hifiashok

Yes Mr Shirke uses Finite Elemente platforms. They distribute Finite Elemente in India.

was aware of this. only, was not certain of the specific amp platforms being under the 'pagode' brand or no, so...

Do experiment with different wood types. They all sound different

i will do two types of platforms (the ply part in the pix), one in steam birch and another in sagwan (teak). this should be a start for the experiments. aliji, will need more SS header discs pl.

Sidvees suggestion is worth trying out. Sand will enable drain out of vibrations faster. Normally people use sand boxes under speakers. But i am sure it can be tried under amps also.

definitely, will add the option.

thanx, guys.

any mo suggestions, all/also welcome.