Hifi Rack

magma

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Hello all

There have been a few questions regarding the rack i made
I thought i would answer them in a thread here so that general doubts may be sorted out for all
(rather than disturbing my sale thread or my thread meant for speaker stands)

Following is a modular rack made from Pure Marine grade SS as opposed to chromed MS that most budget manufacturers use
All hardware other than the glass can be provided

Shelves can be made of any material as the user wants
And since the uprights are completely modular they can be whatever size the user wishes

It can be Glass ( the use of toughened glass is recommended only )
Granite
Acrylic
Hardwood
MDF

Thickness can be whatever the user wishes as long as it is a maximmum of 19mm

Black 1.25inch dia and 6mm thick Neoprane Buffers can also be provided which are to be used between the glass and the SS uprights.(these are not shown in any pics)
These provided isolation between the Steel and the glass and by extension isolate the electronics from any ill effects


The spikes are large(1.5inch dia) and if you see closely have two contours.they curve in before forming an equilateral triangle at the end point
Many spike makers believe this to be the best design


Current modular rack is to have 4 shelves
details of shelf height
Bottom shelf ht - 9 inches
2 shelves of ht - 7 inches
1 top shelf

The bottom shelf will be 3inch+1.5inch ( spike ht) = 4.5 inch off the floor

Uprights are 33mm in diameter
Shelves can be cut to any size (24*18 is good aesthetically and generally fits most equipment but you should choose your own size according to equip)
Holes in the four corners of the shelves could be made 21inch by 15 centre to centre distance if using the above mentioned size of glass)

Alternatively 1.5inch away from each edge if using other sizes
Tip : while drilling please use centre to centre distances rather than distances from the edge of the shelf for better accuracies

The upright uses 5/16 " threads- hence an 8 mm hole would suffice .
Tip if using glass Ask the glass cutter to use an 8mm drill bit.you will see the final result will end up being MORE than 8mm which is good for adjustments or inaccuracies in measurement)

Please note
For illustration purposes i did not get 4 glass shelves made
I had only 2 made and have used them on the bottom shelf and top most shelf
Hence you see the middle two shelves empty , instead you see two black aluminium straps(which should be replaced by the shelf)

Also for illustration purposes i have used only 6mm glass
If using glass I suggest use of 10-12 mm toughened glass for the bottom two shelves and 8 mm toughened for the top 2 shelves
Other than adding strength to glass i also find that the toughening process makes the glass more inert to sound.(the ill effects if any get negated by a decent margin)




Currently the modules are lying shrink wrapped
But when im free i hope to get two extra shelves and the neoprane buffers that ive sourced and assemble the rack fully.
will post those pics wheni get around to doing them
 
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Now for some doubt clarifications

Hi Ali
Excellent work again

What is the steel disc below the spike for?

steel disc is spike feet so you dont scratch the floor
Neoprane buffer will be provided below the SS feet in case of marbonite or marble flooring where steel is likely to slip

Two queries.

1. How much would it cost approx with glass shelves with rounded edges?

2. Can glass be substituted with any other material? If so, what would be the cost savings?

1. I would recommend buying glass from the used market.
Fresh glass is unnecessarily too expensive
Used glass once polished is just ass good as new
Fresh glass 12mm thick with rounded edges AND toughening ( which is the major cost) costs about Rs145/sq ft

Used glass that is repolished probably costs half

2. yes ANY shelf material of any thickness ( 19mm max) can be used with these modules
i think MDF probably turns out the cheapest.As long as youre willing to DIY either the paint or polish job
Someone should confirm how much MDF goes per sq ft though

saikat said:
One small suggestion, if you dont mind me saying brother; lots of people might have very heavy equipment. Could you also do some testing as to the amount of load (in kgs) each shelf and the total rack can take? It might show the strength/sturdiness of the rack and help in building confidence.

-Saikat.

hello saikat
as always your encouragement and advice is always appreciated
Yes wooden shelves can be used with this module

About the load testing
hmm. i should get around to doing that i suppose.But ill have to get some 10mm glass toughened for that. im not going to risk loading untoughened glass more than 20kgs

P.S i have tested 6mm regular UN toughened glass to take 20kgs per shelf .
nothing happened.
it would probably take more but i was not prepared to push especially since i was using only 6mm that too with no toughening
 
Hi Magma, I am looking for a new rack, but the concerns are too many. Your post is quite timely. How sturdy and stable is it against slight pushes? How kid resistant is it :)
 
magma,

Can you post the pictures. It is difficult to have a feel of it without pictures. I am in process of making one.

Thanks
Pandu
 
Hi Magma, I am looking for a new rack, but the concerns are too many. Your post is quite timely. How sturdy and stable is it against slight pushes? How kid resistant is it :)

how stable is it against pushes?
i would say pretty stable
it better be!
its a rack for electronic equip for god sakes
 
here are some pics of a spike set for wooden legs ( a wood rack)
some members were intrested so here they are
the set consists of the spike, spike feet with a antiskid neporane base, a collar that is to be screwed into the foot of the rack
the spike assembles into the collar as shown

Alternatively instead of a custom collar a T nut can be used , but you need to make sure that the t nut will fit well with the wood you have used.
T nuts generally work well with softer woods

 
Hai magma,

Are the spikes readily available off the shelf, or is it fabricated.

N.Murali
 
Hai magma,

Can you provide me with 8 nos spikes for my proposed Speaker stands.

Whats the dia of the spike thread rod? Appears to be 10mm.

What will be the cost?

Thanks in advance.

N.Murali
 
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Hai magma,

Whats the dia of the spike thread rod? Appears to be 10mm.

What will be the cost?


N.Murali

dear murali
if you are loking for spikes for Stands then this is what you can look at


the spikes posted in this thread above are SOLID SS , large extra heavy and double contoured on a CNC
though they can be used for stands they would probably be overkill for light DIY stands
each of those ( just the spike) cost about thrice the regular spikes as posted in this post

the thread dia is fixed at 3/8 inch threads BSW

yes i can make you the spikes
quote in PM
 
magma,

Please look at the design I had done earlier last month. Initially I wanted to do it with metal framming but with respect to skilll availablity I felt carpentry would be better.

Please check this design out. Let me know which way is better.

http://www.hifivision.com/diy/11934-ht-listening-room-rack-design.html

I am going send you PM with my number on it in case you dont see this post

Thanks
Pandu
 
Hi Dear Readers,
Today saturday 11th Sep, I saw the components of the hi-fi built by Magma.
Indeed it was first rate.
I have shopped in USA Germany & England, (also Hongkong , Singapore & Australia) for the past 40 years.
I was MOST PLEASANTLY SURPRISED TO SEE THE FINISH OF THE PRODUCT. It can pass off as any Imported brand.It competes with anything out there in the rack market.
The cost is also very very modest.
Plus it has the flexibility of using customized shelves. (You decide on what ur requirements are & he can fabricate it for you).
I cant be more pleased with the product. Plus its nice dealing with a straight forward upright guy, who is ALSO OPEN TO IDEAS.
What a pleasant change to meet a guy like him.
I wish him all the best.
Suresh Lalwani of Air India.
 
I APOLOGISE FOR THE MISCOMMUNICATION
PLEASE READ CAREFULLY.

suresh lalwani

Join Date: Sep 2008
Location: churchgate mumbai 400020
Posts: 16
Reputation: 11
Thanks: 3
Thanked 1 Time in 1 Post


Re: Hifi Rack
Hi Dear Readers,
Today saturday 11th Sep, I saw the components of the hi-fi AUDIO RACK built by Magma.
Indeed it was first rate.
I have shopped in USA Germany & England, (also Hongkong , Singapore & Australia) for the past 40 years.
I was MOST PLEASANTLY SURPRISED TO SEE THE FINISH OF THE PRODUCT. It can pass off as any Imported brand.It competes with anything out there in the rack market.
The cost is also very very modest.
Plus it has the flexibility of using customized shelves. IN THE STAND AS IT IT EXISTS YOU CAN USE GLASS SHELVES/OR ALTERNATES OF ANY DIMENSION. IN ADDITION HE CAN CUSTOM MADE PRODUCTS.
I cant be more pleased with the product. Plus its nice dealing with a straight forward upright guy, who is ALSO OPEN TO IDEAS.
What a pleasant change to meet a guy like him.
I wish him all the best.
Suresh Lalwani of Air India.
 
Heres a teaser of the Type 2 rack im working on
Its almost done
Some levelling is pending




idea was simple
its a combination of the 3 point cantilever ( remember your physics)
and a 3 point support
Idea was a minimalistic look ( i.e once the equipment is loaded - you cant see the rack!) its as if the equipment is suspended
hence shelves are smaller than the size of the equipment ( just enough to accommodate the feet)
Also the shelves are adjustable since the brackets slide and lock along the central column in any desired position

shelves can be made of any material ranging from glass to acrylic to 9mm compact laminate ( much better than solid teak or MDF IMO )

will post detail pics and explanations later

p.S : thanks to sureshji for bearing with me and kittu for his encouragement earlier ( who basically told me to think out of box and told me to build something better and different from my earlier approach)
 
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magma!!!!!!B.E.A.U.T.I.F.U.L!!!!oh yes,u for sure a getting an order from me,soon enough hopefully ;).cheers
 
@Magma : Firstly, it appears a great job done. However, bigger pics would be better.

Secondly, pardon me if it offends you or if its covered previously, do you also do this job commercially, I mean would you supply in case its ordered?
 
magma!!!!!!B.E.A.U.T.I.F.U.L!!!!oh yes,u for sure a getting an order from me,soon enough hopefully ;).cheers

hey
thanks for the encouragement
yeah this rack is unique from most in the way that once equipment is loaded you hardly see the rack at all
just the equipment- thats the beauty of it

@Magma : Firstly, it appears a great job done. However, bigger pics would be better.

Secondly, pardon me if it offends you or if its covered previously, do you also do this job commercially, I mean would you supply in case its ordered?

sir
yes , i do accept orders once in a while - (though i have been encouraged by some to go fully commercial for which i cant seem to find time :sad:)

Hence you should note
i do this as a hobby ( well lets say a seious hobby) and due to that i do take time to execute orders since i cannot let this affect my regular line of work

About the pic size : sir if you click on the small thumbnail photo it will rediect you to the larger photo on imageshack
As for more detailed pics - i will post later
 
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Type 1- Classic Alpha

This was one of my first attempts at hi fi racks. It turned out pretty well.
I have used Marine Grade Stainless steel(2.5mm thick) tube modules as you can see in the pictures
However since my first build; i have gone a step higher on other builds of type 1 racks.
I now use SOLID Aluminium bars for the modules since i find Aluminium to be more inert and using a SOLID bar helps sonics too
Obviously this has increased costs but the improvements are well worth it
(P.S : I dont know any rack manufacturer who uses SOLID bars )

Shelves can be made of any material as the user wishes (glass,acrylic,wood,granite etc) and since the uprights are completely modular they can be whatever size the user wishes

Thickness can be whatever the user wishes as long as it is a maximum of 19mm

Black 1.25inch dia Neoprane Buffers are provided which are to be used
These provided isolation between the Steel and the glass and by extension isolate the electronics from any ill effects

The spikes are large(1.5inch dia) and if you see closely have two contours.they curve in before forming an equilateral triangle at the end point
Many spike makers believe this to be the best design

Current modular rack is to have 4 shelves
details of shelf height
Bottom shelf ht - 9 inches
2 shelves of ht - 7 inches
1 top shelf

The bottom shelf will be 3inch+1.5inch ( spike ht) = 4.5 inch off the floor

Uprights are 33mm in diameter
Shelves can be cut to any size (24*18 is good aesthetically and generally fits most equipment but you should choose your own size according to equip)
Holes in the four corners of the shelves could be made 21inch by 15 centre to centre distance if using the above mentioned size of glass)

Alternatively 1.5inch away from each edge if using other sizes
Tip : while drilling please use centre to centre distances rather than distances from the edge of the shelf for better accuracies

The upright uses 5/16 " threads- hence an 8 mm hole would suffice .
Tip if using glass Ask the glass cutter to use an 8mm drill bit.you will see the final result will end up being MORE than 8mm which is good for adjustments or inaccuracies in measurement)

The rack contains the following components
16 nos -Stainless Steel/solid Al modules for 4 shelves - 4" base+ 9" 1st bottom + 7" + 7"
4nos - double contoured heavy duty SS spikes
4nos - Spike feet
12nos - Neoprane washers black ( thick)
16nos - Neoprane washers black( thin)
4nos - Nylon transparent washers for top shelf
4nos - Stainless Steel end caps for the top shelf






Below is an image posted on the forum by a fellow memeber






Type 2 - Solid Stealth Beta

This is a new design i worked on recently.
Looks fanastic when loaded with equipment

The rack uses a combination of two principles ; the 3 point cantilever (remember your physics)and a 3 point support

Idea here was a minimalistic look ( i.e once the equipment is loaded - you cant see the rack) Its as if the equipment is suspended
No visible 4 columns.The centrestage here is the equipmet and not the rack
Hence the shelves are made smaller in dimension than the size of the equipment ( just enough to accommodate the feet)
However initial pics below are of equipment that is retired and not meant to be used with the rack hence the rack shleves look a bit oversized

Another feature here is that the shelf height is adjustable since the brackets slide and lock along the central column in any desired position.The same rack can therefore be used for all upgrades/changes in electronics irrespective of the equipment height

Yet another feature here is that each shelf can be individually and independently leveled

Shelving can be of any material as desired by the user ranging from glass to acrylic to compact laminate ( much better than solid teak or MDF IMO )
Pics Below show one rack using 6mm toughened glass shelving and one rack with 19mm thick granite

Here unlike the type 1 rack there are no holes to be cut in shelves etc
Just get a sheet of glass/acrylic/granite and place it onto the 3 point cantilever brackets and youre good to go

Spikes/pointed shanks are provided for the base and the individual brackets or alternatively acorn nuts can be used both on the brackets and c frame base

The larger rack below ( the one with granite shelving ) has a huge base so as to accomodate a monster power amp
( a 53 kg Classe ) http://img821.imageshack.us/img821/1631/classed.jpg
The next shelf (from bottom)is to accomodate an Audio Research preamp
the shleves above are for a marantz DVD player
This rack frame has been mass loaded with sand and lead shot

The other rack in the background has glass shelving and will accomodate the Qsonix music mangament system with touchscreen, a NAD T700 series 5.1 AV amp and some misc equipment

Please do excuse the messy audio room- it currently has 4 racks ( 2 as described above plus a pedestal for the Classe and a teak stool for the Qsonix
The later two will be discarded and only the twin BETA racks will remain side by side
Also the equipment on the granite rack is only for illustration and hence the shelf dimension mismatch
All that equiment is to be stored away







TyPe 3 - Zenith Gamma
soon to come - based on the spider rack for shleving upto 1.5 inches thick
 
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