Hi,
I have been DIY for the past 12yrs or so, and one thing I have clearly understood is that bass is the foundation on which the entire sound stage is based. So after lot of soul searching and debating with myself, if I should pour in my hard earn money in making these beasts , I finally concluded that it is well worth the effort and time.
And my journey began , first was finding the right drivers for the job , out of excitement I bought the peerless sub locally available in Mumbai but to my utter dismay these so called sub-woofers are at best woofers that also with poor xmax it has at best 10mm of pk to pk travel before it starts bottoming out . So I kept the peerless sub aside and started focusing on other drivers available, all I could find is car subs although good but most of them had their fs close to 35 to 40hz and the some JBL subs that had a fs close to 22-25hz were not available or were outrageous expensive, the thought of buying from parts express did cross my mind by but paying 40+ $ of shipping and then custom clearance wouldn't make the project viable anymore
So I kept on searching, and finally found a person who could build me the subs according to my specifications but he said you will have to wait as some components of the sub would need to be imported, so we formed an alliance and designed a sub that could out perform any commercially available sub given the price.
So here is my sub-woofers that I lovingly call the MJOLNIR (thors hammer), it delivers as per its name everything starting from windows to bed and furniture shakes when this beast fires up.
The Technical Side of the MJOLNIR.
Ported
BOX VOLUME 68L
PORTS 3X 3inch X 25inch (this keeps the port noise below 17m/sec even at 300W)
Driver Custom make
Group Delay ~ <20msec at 20 Hz
F3 28Hz
Sealed
F3 - 40hz
Otc 0.626
The box is built such that it can also be used as sealed with all the ports closed.
And I over calculated the need of sub for myself and made two of these beasts , with one sub firing at a measly 50W I have had complains from neighbors.(I think i have to sell these off and make some thing smaller..)
Now for the amps , I searched high and low for good amps of 300+300W but to my dismay everything was priced at approx >15-18K so I though why not make the amps as well and I have started designing the amps which will be complete in a months time..
sadly enough i lost the mobile and the pic of the build process for the sub, amp pics coming soon.
regards
Aniket
I have been DIY for the past 12yrs or so, and one thing I have clearly understood is that bass is the foundation on which the entire sound stage is based. So after lot of soul searching and debating with myself, if I should pour in my hard earn money in making these beasts , I finally concluded that it is well worth the effort and time.
And my journey began , first was finding the right drivers for the job , out of excitement I bought the peerless sub locally available in Mumbai but to my utter dismay these so called sub-woofers are at best woofers that also with poor xmax it has at best 10mm of pk to pk travel before it starts bottoming out . So I kept the peerless sub aside and started focusing on other drivers available, all I could find is car subs although good but most of them had their fs close to 35 to 40hz and the some JBL subs that had a fs close to 22-25hz were not available or were outrageous expensive, the thought of buying from parts express did cross my mind by but paying 40+ $ of shipping and then custom clearance wouldn't make the project viable anymore
So I kept on searching, and finally found a person who could build me the subs according to my specifications but he said you will have to wait as some components of the sub would need to be imported, so we formed an alliance and designed a sub that could out perform any commercially available sub given the price.
So here is my sub-woofers that I lovingly call the MJOLNIR (thors hammer), it delivers as per its name everything starting from windows to bed and furniture shakes when this beast fires up.
The Technical Side of the MJOLNIR.
Ported
BOX VOLUME 68L
PORTS 3X 3inch X 25inch (this keeps the port noise below 17m/sec even at 300W)
Driver Custom make
Group Delay ~ <20msec at 20 Hz
F3 28Hz
Sealed
F3 - 40hz
Otc 0.626
The box is built such that it can also be used as sealed with all the ports closed.
And I over calculated the need of sub for myself and made two of these beasts , with one sub firing at a measly 50W I have had complains from neighbors.(I think i have to sell these off and make some thing smaller..)
Now for the amps , I searched high and low for good amps of 300+300W but to my dismay everything was priced at approx >15-18K so I though why not make the amps as well and I have started designing the amps which will be complete in a months time..
sadly enough i lost the mobile and the pic of the build process for the sub, amp pics coming soon.
regards
Aniket
