[Sam Kapasi]

Originally Posted by navin

not really Sam. I have done this sort of thing.

odd objects i have used for enclosures with surprisingly good results.

1. Tabla for a 5" midbass (Scan Speak 15W 8530)

A Tabla??? You used a Tabla??????

[jkdas]

have seen people use earthen pots. and it works fine 2.

[navin]

Originally Posted by Sam Kapasi

A Tabla??? You used a Tabla??????

I made a 3 way using 2 Tablas and a pvc cone with a 8" woofer in the larger box, a 5" Midbass and a modified Scan Speak aluminum dome tweeter (enlarged rear chamber to reduce Fs).

[Sam Kapasi]

I've heard an 8" speaker in a lined matka and it sounded pretty good.

[navin]

remember the magic of no parallel surfaces.

[mclaren1885]

Originally Posted by navin

remember the magic of no parallel surfaces.

what exactly are the advantages of non parallel surfaces navin..i have a fair idea but would like to know in detail from truely urself..il be expecting a long reply ..

[paharino1]

I have stayed in Hostels for 6 years...& most of the "boom" making speakers were in matkas..& they were pretty good....esp for Bollywood songs of the 90s..( remember - tamma tamma ??)
Lots of people used a music system called "York" or something...

I have also seen "walking speakers" - as a demo....someone just placed the speakers on the floor...played some loud music..& the speakers walked for 50cms or so..

crazy..isn't it !!

[navin]

Originally Posted by mclaren1885

what exactly are the advantages of non parallel surfaces navin..i have a fair idea but would like to know in detail from truely urself..il be expecting a long reply ..

mclaren, there are no parallel surfaces, the design reduces internal standing waves and back reflections.

An asymmetrical, rounded enclosure has several advantages. First it results in the stiffest, strongest, most durable cabinet in its class and it suffers less from typical internal standing waves created by symmetrical designs.

This sort of free-form enclosure also enabls engineer to reduce diffraction problems resulting from sharp cabinet edges, which can affect the imaging of speakers. The curved shape—as opposed to parallel walls—largely reduces the possibility of standing waves that can occur when sound waves bouncing off parallel surfaces cancel each other out.

the basics of speaker cabinet design are discussed in the AES paper link below.

http://aes.ee.calpoly.edu/files/jere...es_lecture.pdf

BTW Cal Poly has one of the best courses in music appreciation on the west coast. My wife and me attended one there some years back.
see http://www.calpoly.edu/

[mclaren1885]

thanks a lot for that rather short gyan navin..

[navin]

now i found it. see i even know how to google.
http://www.calpoly.edu/~acadprog/200...mucrs2005.html

[mclaren1885]

Originally Posted by navin

see i even know how to google.

well done ..now how about learning to post a few pics my man so that we get to see some very useful pics( of ur DIYs) which im sure u have plenty available at hand..

[navin]

i got that problem licked with help form JK. I mail him my pics he posts them after reducing them to an appropriate size.

[AvinashKeezh]

hey guys,
news from the ford accesories guys...
i can either have a CDX-F7710S (13K) or a CDX-R5810 (12K).
the deal is something like this, i pay the differential only that's either one's cost minus the 8K on the CDX-R3410. so i'll be paying 5K or 4 K respectively..
which one is the better model... i personally feel the F7710S to be the one.
any advices...
thanks,
ak

[AvinashKeezh]

and BTW, both the HU have a pre Out x 2, sub out... i am assuming that its a 3 pre amp out....
as the 3410 has pre out - rear/sub switchable.... as per the brouchure...
ak

[mclaren1885]

Originally Posted by AvinashKeezh

hey guys,
news from the ford accesories guys...
i can either have a CDX-F7710S (13K) or a CDX-R5810 (12K).
the deal is something like this, i pay the differential only that's either one's cost minus the 8K on the CDX-R3410. so i'll be paying 5K or 4 K respectively..
which one is the better model... i personally feel the F7710S to be the one.
any advices...
thanks,
ak

well i would say u better pick up the 7710 then..its the newest entry from sony HUs in india..though i would have preffered the 7715 which is equipped with burr brown im told that its not yet officially available in india..so going by the fact that u got to make a choice btwn 7710 and 5810 u would certainly go with the 7710 which looks pretty cool too..but anyday prefer a pioneer 7750 or a alpine 9833 which have way better displays and features too..so if u got no choice apart from sony go with the 7710 AK..and ya lastly both the HU have 3 preouts..