Finally here are the picture of my new speaker that I am going to release in the market

sorry if that link is not working then check this..

http://img213.echo.cx/my.php?image=pic0od.jpg

Now arrange for auditioning....in B'lore/Hyd since you are from Anantpur...

yeah Im quiet busy now and i will take some time for arranging at Bangalore and Hyd already I m getting calls from Hyd to arrange demo at Hyd.

hey sonic,
nice looking speaker.
does it sound as good as it looks.
seems like u have used the same tweeter ia m talking abt and the same driver used in siva's acoustic portriat(if i am not mistaken).
very well done. post or send me pictures of ur Proac clone. would love to see what u have done.
But overall, looks like a neat job.
would love to audition it.
Cheers,
Ben

is the woofer the TC model from Vifa.

thank you ben yeah its very nice one and even I got good feedback from lots of people. For its fastness...

anyway the kind of woofer that what you say ... its not that one...

well where shall i arrange the demo at Bangalore?

Pro ac clone I dont want to release that because its not fare..

I want to make something which is far better than that.. so wait for a month or so I will build another highend stuff better one...

I want to use some better drivers and crossovers than what is used in the proac.

best regards,
Sandeep

regarding the auditioning. what did u have in mind for bangalore.

it need some time to decide this where to audition the speakers...

It looks pretty good !
Would be very interested in hearing comments from those who get to audituin it

Again mann....why compare to Pro ac alone....C'mon Sonic if you have the talent give it your signature..the diffrent sound of your speaker..if you feel you can better the Proac then why compare it to Proac....have your own yardstick....tell me where can I audition it... I can never ever tell you whether it's better than Proac..coz I've never ever heard one....but will definetely drop to see and hear better than Proaac atleast..hope I'm invited

well here is onemore pic in different angle


http://img79.echo.cx/my.php?image=pic35ic.jpg

ok subboss I will come to Bangalore and I will arrange a demo But i m planning to shift to Bangalore so I need some time for this.

Before that I need to go to Hyderabad for some time and make some more research before making another newer version of speaker.

But thanks for all of your for nice feedback

for deciding a name I will start a poll

there you go...start a poll as well give chance for all members to post their names below......ultimately the name should translate your dedication and courage to ape Pro ac's.....

Thank you subboss
and even I am busy in designing security systems using LASERS. So I will take some time to think the names as well as to give our forum members a chance to give some names and also poll them.

well one more thing is that as the speakers have frequency response to 30Khz these speakers uses true potential of your DVD audios. Even in surround mode these speakers will shine alot for their treble extension which is essential for DVD audio and as well as SACDs.

well the weight of each speaker is 8.1 Kg with grill it comes to about 8.4 Kg.

I got call from Delhi, Enquiry about speakers orders. The people up there want speakers like this. Anyway I am arranging demo at Bangalore and as well as in Hyderabad in short time.

I am building floorstanders for one of my customer the design process is going on. How will it be for a floor stander with same specs as above with a price tag of just 23k

Just a little observation. That baffle looks a little too wide and could cause too much baffle reflection.

I am sure it sounds great.

What are you using to damp the cabinet? Is the cabinet braced? Is is vented or sealed?

Anyway, looks good.

well this is just a protype developed and in the comming designs it will be little bit different but i found sonically this very good, the cabinet is braced, its vented now I have added a port in the front and now it has got good spl response and Im using glasswool inside the cabinet to dampen the standing waves.

In the comming versions I am using a technique called as wave trap techniques with this the back wave never returns to the cone.

Regarding the baffle width like you said it may cause too much baffle reflection If that is concerned>>>>

My driver is 6.5 inch and im using about 190mm as the width and Dynaudio 52se uses the same sized driver 6.5 inch but the baffle width is about 204mm??

So my opinion is that baffle reflection crosses the limits when its too large like if the width is about two times the driver diameter then you can observe that.

Any more questions feel free to ask.

[quote="Sonic_Master"] well this is just a protype developed and in the comming designs it will be little bit different but i found sonically this very good, the cabinet is braced, its vented now I have added a port in the front and now it has got good spl response and Im using glasswool inside the cabinet to dampen the standing waves. [/quote]

Could you post pictures? The pictures above don't show enough room for a port. Did you build a new cabinet? I would love to see how it looks.

I recently got done with a DIY project my self using Seas drivers of similar dimensions.

[quote] My driver is 6.5 inch and im using about 190mm as the width and Dynaudio 52se uses the same sized driver 6.5 inch but the baffle width is about 204mm?? [/quote]

May be it is an optical illusion but the picture you have makes the cabinet bigger than the Audience 52se's.

[quote]So my opinion is that baffle reflection crosses the limits when its too large like if the width is about two times the driver diameter then you can observe that. {/quote]

Well it would be for the tweeter in your design. Many speaker manufacturers taper the baffle to reduce the reflections on the tweeter. Some even mount it on top. So the baffle refelection I mentioned was with respect to the tweeter.

Eyeballing your cabinet and 52se, yours seems far wider. may be your final design is different.

Hey oarnura,
Welcome to the Forum.
can u please give me more details on the design of ur DIy speakers and teh kind of Crossover u have used wih the crossover piotns.
also what are the model no of the drivers u have used.
Kindly, explain to me how u have put bracing and what kind of bracing u have used in the system.
i assume that the DIy u have done is a 2-way.
is thsi the first DIY speaker u have biult?
Great to have u on the forum.
May the DIY clan grow.
Cheers,
Ben

Hey Benks,

Although it is cheaper to DIY,

it is a lot more fun to do it with someone else...

Dear Big ears,
u are more than welcome to join in. would love to share the burden of myjourney which has not even started. am making all the preparations for it so that it will be as easy and rewarding as possible.
Have already learnt a lot more that i knew( or thought i knew )before i started out on this project. A lot more is becokning....
in the words of Neil Diamond--"Can anybody hear Me" if so then come join me and we'll travel along that "Blue highway".
Cheers,
Ben
p.s: sure does beat workin alone.. atleast u can blame it on the others if something goes wrong .

benks wrote :

p.s: sure does beat workin alone.. atleast u can blame it on the others if something goes wrong

there you see u learnt the trick of corporate world... BTW are u reinforcing the cabinets or just lettin em loose...

big ears wrote :

Although it is cheaper to DIY, it is a lot more fun to do it with someone else...

what exactly is this dear big ears..not one of your humour breaks

Aw Sub,

Me, and humour.....



But seriously, just a fact of life for young Benks...

ya big ears nowadays really need to read your posts carefully and lo there i see dual meanings in them......hehehe

keep em going till then i take a drink

big ears wrote :

But seriously, just a fact of life for young Benks...

yup a good advice for young bachelors........one more for you

SUB_BOSS schrieb:

BTW are u reinforcing the cabinets or just lettin em loose...

Mohan,i don't exactly know what u are speaking of.
Kindly explain.
Cheers,
Ben

benks r u reinforcing the murphy cabinets or letting the panels as they are and were built..... no dual meanings here

Industrial production is totally different when compared to the diy aspects. what I did doesnt come under diy its not for me The product is for sale. I think things regarding diy aspects must be done at diyforum.

Hey Mohan,
i have decided to build a new cabinet.
i have already designed the enclosure , the port dimensions and the tuning frequency.
now that's the easy part.
i will be waiting for my drivers to get here after which we will measure teh T/s parameters before and after mouting them in the cabinet.
also will measure them beofoer and after burn in.

The tough part is going to be the Crossover.
i'm presently evaluatin between a Active and passive system.

Still need to account for Baffle Step compensation and need to find the actual nominal impedances for the crossover point determination.
Cheers,
Ben

crossover part is a typical and even tough part and ben.... do u know how to and where to place inductors in the enclosure and why? I think you know.. and what kind of device are u using to determine the T/S parameters? these equipments are very expensive... accurate one are the best and if you just do it like that then there is nothing that is going to workout..sometimes with mismatched T.s parameters it will sound worse

What did u think about the driver matching.. the things which you have ordered are totally mismatching in terms of transient responses as well as the sizes Midbass just 4 inch and bass driver 10 inch ... so you get more bass in ur project rather than warm mids adn tight drum beats etc..

But there is some problem regarding the Bl product of your 10 inch midbass.. it doesnt have good sized Magnet to get deep penetrating bass

Anyway design the crossover ben i think it takes lots of time...

what about the driver sensitivity match I think u didnt even check it because you can just add L pad attenuator to the midbass or bass drivers...

Ok let it be but like you said if you are using the low damping factor amplifier then how can it control the 10inch bass driver..There was lots of mismatch man.. ok you add me in the messenger list my id is

sandeepsonic2006@yahoo.com

and we can have a chat regarding this... lets stop here and not to confuse the forum members regarding all these technical stuff..

Hey Sonic,
Yeah i know that putting the 10 inch driver in a vented enclosure is going to be dicey.that's why i am trying to optimize the enclosure design as much as possible. If need be i will introduce a 24 db/octave or a 32db/octave subsonic filter.
Regarding the Bl product , i think it is fine and don't think it is going to be much of a problem. Also remember that this is just my first project sio i don't expect things to go as smoothly as a train.
u are right that the miodrage is a bit small bnut that is not unusual. u do get better response from a larger driver but the 4.5 inch driver i have is going to be fine.


Dude, u must know that an L-pad attenuator is not used for woofers. It is a bad idea. Also i am more concerned abt the Baffle step as it can bring down the low end of the system by upto 6dB because of teh diffraction losses.
i'll send u a link regarding the damping factor of amplifiers if i can find it.
lastly regarding the measuring of the T/S parameters, my friend is helping me that area and i truly appreciate his help and advice.
Btw,i have added u to my yahoo list.
Cheers,
Ben

well ben,
hey thats what i said we can use the l pad attenuator to the tweeter not the woofer.. so if a woofer having more sensitivity than the tweeter then what are u going to do> we cant add the l pad attenuator naa.. thats what i said...

I this case the sensitivity of midbass and the sensitivity of the bass driver, the gap it seems too large i think its about 2.5 to 3db where it means that one sound twice louder than the other.. isnt it..

any way i think you can optimise it with the baffle .. well try that.. but its very hard for big improvement in sensitiviy with the baffle..

Let me think regarding this and give you the right direction...