SoundCraft
Active Member
Hey guys I just want to bring to your notice this beautiful project conceived by DIY guru from Bangalore Soundsgreat, I was informed about this project by him as he had posted it on the other forum,I immediately asked his permission to post the same in this forum (as he is not active here any more) for the benefit of the all the members here
After initial reluctance he agreed and with his permission here I Am posting it here for the benefit all the members here,Especially for the DIY crazy guys here
Hey folks, after a looooooong gap here I am back with a new project of mine.
Had not undertaken any new builds as was working extensively on developing new drivers for the future projects,much headway was made in the 6.5 driver and the dome tweeter department but not much could be done to 5.25 driver as the basket that Am after could not be either procured or fabricated locally.
Anyways as the new drivers of 6.5 size was done and it was time to test them in a proper way (i.e. put in a box),I decided it was time to get into action and start a new build, The result of the same is before you.
This is the same TL design that I started many years ago and since have been updating it many ways, It has had many iterations and many small/big changes done to it! The most notable one which is achieved in this project is the decrease of the width of the front baffle,Now the front baffle is much narrower compared to the earlier designs, This will help in keep many things under control.
Also in this version Ive tried to keep the box compact, its footprint is smallest of all the towers Ive built till date. Ive really worked hard to keep the dimensions small and yet retain all the other qualities of the earlier designs. I didnt want to sacrifice anything at the same time didnt want to make the box big which may not be suitable for all the rooms (like mine).
The Box is made of MDF and the internal damping material is a mixture of glasswool and poly fiber ( very very complex process of getting the quantity right of both). As this is the TL design theres hardly any standing waves or such and with this combo damping material its cut to almost nil.
The Xover is a simple 2nd order butterworth with hardly any additional stuff ( Like Zobal,Lpad etc),I hate to complicate the Xover with all the additional stuff like Zobal,Lpad and such,So instead I take care of most of the issues in the driver stage itself so that I dont have to correct these anomalies in the Xover which sometimes lead to loss in quality.
Coming to the drivers, The Midbass is made of PP cone with 1.1 Dual layer voice coil and dual 90MM magnet motor structure. This allows the driver to be very fast and agile and the usage of Aluminum phase plug aides in keeping the voice coil cool and aid in the drivers sound dispersion, in addition to that it also keeps the cone weight low there by making it fast. With all this the driver is almost as good as it can get (modestly speaking ).
The tweeter is made of similar design,The motor structure consists of dual 72MM magnets with the vented pole piece to help bring the FS of the tweeter the lowest levels,The dome itself is made of PEI and has been damped with asbestos to cut the ringing and other anomalies which is present in most dome tweeters,Also the voice coil is cooled with Ferrofluid,Which agains helps in overall response of the tweeter, The face plate is 4.5 aluminum custom machined with mirror finish,The face itself was well thought off and was machined with 1.25 bore (center hole for the dome to fire),this was done to achieve the max coverage and minimal loss.
The Spike of these towers are custom machined to my specs ,Its a 3 piece spike system as I wanted the isolation to be optimal and best decoupling of the towers from ground. The base plate as well is designed to be mounted in such a way that it not only enhances looks of the towers but also increases bottom footprint in such way that helps stabilize the weight and balance it evenly
The key and most important part of this project is that it uses complete custom machined parts and this truly Made in India product unlike many others
I usually dont believe in too much measurement and such, Although Am not against measurements but I truly believe that no matter how many colourful graphs you show unless and until you hear it you can only gauge soo much. Also the fact that, Just cause the graphs are good (theoretically off course) theres absolutely no guarantee that everyone will like it,As the music is very subjective field,I want people to like it and give me a good feedback, that to me is the actual graph of what the speakers are all about !! Not the other way around (where people are compelled to like it cause of the colourful graph fearing if they dont theyll be...)
So I wont post no graphs and such but will ask anyone whos interested in reading those graphs to visit and hear it for yourself and experience it yourself first hand and let me know what their mind graph tells them about the sound!
Also one more important news that I wish post here is, With this tower I have formally taken the Branding route ( I,e naming the creations, models and such) ! Many many people who came to listen had always suggested that I give names to the speakers so that it will help them identify and helps in recollecting the same as and when someone mentions it.
So with all the suggestions and such for name, I hereby announce the arrival of Sonatmagna , Model is called Mirum. Please do feel free to post your feedback.
Here are pics of the project.
The bare boxes ready to....
The D-Nut for the baseplate for the spikes.
Front panel after the first coat of paint
After the side panel primer and test fit.
Finished sides with wooden finish with lacquering (8coats)
Front with special black with glitter finish
Side angle look.
One more.
Finally fully finsihed and ready to...
After initial reluctance he agreed and with his permission here I Am posting it here for the benefit all the members here,Especially for the DIY crazy guys here
Hey folks, after a looooooong gap here I am back with a new project of mine.
Had not undertaken any new builds as was working extensively on developing new drivers for the future projects,much headway was made in the 6.5 driver and the dome tweeter department but not much could be done to 5.25 driver as the basket that Am after could not be either procured or fabricated locally.
Anyways as the new drivers of 6.5 size was done and it was time to test them in a proper way (i.e. put in a box),I decided it was time to get into action and start a new build, The result of the same is before you.
This is the same TL design that I started many years ago and since have been updating it many ways, It has had many iterations and many small/big changes done to it! The most notable one which is achieved in this project is the decrease of the width of the front baffle,Now the front baffle is much narrower compared to the earlier designs, This will help in keep many things under control.
Also in this version Ive tried to keep the box compact, its footprint is smallest of all the towers Ive built till date. Ive really worked hard to keep the dimensions small and yet retain all the other qualities of the earlier designs. I didnt want to sacrifice anything at the same time didnt want to make the box big which may not be suitable for all the rooms (like mine).
The Box is made of MDF and the internal damping material is a mixture of glasswool and poly fiber ( very very complex process of getting the quantity right of both). As this is the TL design theres hardly any standing waves or such and with this combo damping material its cut to almost nil.
The Xover is a simple 2nd order butterworth with hardly any additional stuff ( Like Zobal,Lpad etc),I hate to complicate the Xover with all the additional stuff like Zobal,Lpad and such,So instead I take care of most of the issues in the driver stage itself so that I dont have to correct these anomalies in the Xover which sometimes lead to loss in quality.
Coming to the drivers, The Midbass is made of PP cone with 1.1 Dual layer voice coil and dual 90MM magnet motor structure. This allows the driver to be very fast and agile and the usage of Aluminum phase plug aides in keeping the voice coil cool and aid in the drivers sound dispersion, in addition to that it also keeps the cone weight low there by making it fast. With all this the driver is almost as good as it can get (modestly speaking ).
The tweeter is made of similar design,The motor structure consists of dual 72MM magnets with the vented pole piece to help bring the FS of the tweeter the lowest levels,The dome itself is made of PEI and has been damped with asbestos to cut the ringing and other anomalies which is present in most dome tweeters,Also the voice coil is cooled with Ferrofluid,Which agains helps in overall response of the tweeter, The face plate is 4.5 aluminum custom machined with mirror finish,The face itself was well thought off and was machined with 1.25 bore (center hole for the dome to fire),this was done to achieve the max coverage and minimal loss.
The Spike of these towers are custom machined to my specs ,Its a 3 piece spike system as I wanted the isolation to be optimal and best decoupling of the towers from ground. The base plate as well is designed to be mounted in such a way that it not only enhances looks of the towers but also increases bottom footprint in such way that helps stabilize the weight and balance it evenly
The key and most important part of this project is that it uses complete custom machined parts and this truly Made in India product unlike many others
I usually dont believe in too much measurement and such, Although Am not against measurements but I truly believe that no matter how many colourful graphs you show unless and until you hear it you can only gauge soo much. Also the fact that, Just cause the graphs are good (theoretically off course) theres absolutely no guarantee that everyone will like it,As the music is very subjective field,I want people to like it and give me a good feedback, that to me is the actual graph of what the speakers are all about !! Not the other way around (where people are compelled to like it cause of the colourful graph fearing if they dont theyll be...)
So I wont post no graphs and such but will ask anyone whos interested in reading those graphs to visit and hear it for yourself and experience it yourself first hand and let me know what their mind graph tells them about the sound!
Also one more important news that I wish post here is, With this tower I have formally taken the Branding route ( I,e naming the creations, models and such) ! Many many people who came to listen had always suggested that I give names to the speakers so that it will help them identify and helps in recollecting the same as and when someone mentions it.
So with all the suggestions and such for name, I hereby announce the arrival of Sonatmagna , Model is called Mirum. Please do feel free to post your feedback.
Here are pics of the project.
The bare boxes ready to....
The D-Nut for the baseplate for the spikes.
Front panel after the first coat of paint
After the side panel primer and test fit.
Finished sides with wooden finish with lacquering (8coats)
Front with special black with glitter finish
Side angle look.
One more.
Finally fully finsihed and ready to...
