Diy Speakers :Required Low pass filter .

[vardesh]

Hi,

I require a low pass or 2 way Filter for my diy speaker Project.Bcoz i am looking out for low and high pass filter here in Mumbai.I just wanted to know does Part Express ships to india.

Any source/shop or website which ships here in Mumbai.

Thx.

 

[kaushik]

Active LPF ,some easy ckt here

Low pass filter - Subwoofer - circuit diagrams, schematics, electronic projects

for pcb just get a 555 timer pcb from vagakit and modify !!!

 

[vardesh]

Thank You for reply .

I am looking out for readily available option.Looking out for availability in Mumbai for 2 way speakers..

 

[omishra]

I got one from local kit stores, called sub-woofer kit. It has low pass buffer with frequency adjust with trimmer. cost 100Rs with only assembled PCB.

Try Lamington road.

 

[kaushik]

local kit surely have cap leaking already or in a few months...inductors made of ultra-non pure copper if there and wobbling carbon resistors ,
please dont insult that peerless with these . The filters will be forcibly operated beyond recommended range causing distortion ...
some 2 Rs op-amp or .25Rs transistors .. ic op amp is 741 it is holy crap
spend half day for the build ,itz really worth it .

 

[omishra]

local kit surely have cap leaking already or in a few months...inductors made of ultra-non pure copper if there and wobbling carbon resistors ,
please dont insult that peerless with these . The filters will be forcibly operated beyond recommended range causing distortion ...
some 2 Rs op-amp or .25Rs transistors .. ic op amp is 741 it is holy crap
spend half day for the build ,itz really worth it .

Sir, look at the PCB (basic idea only). Copy it on FR4 material. Buy components of your liking from online site. Put everything together. Though 1%, 1/4W MFR will cost you 0.30Rs, OPAMP at 2-500Rs each depending upon choice. Gold plated IC sockets ~30-80Rs each.

Even I do same way. Find a circuit - look for its pros and cons on different forums. Seek modifications and review after those proposed modifications - you are done.

BTW for modules there are many like this.

 

[kaushik]

Sir, look at the PCB (basic idea only). Copy it on FR4 material. Buy components of your liking from online site. Put everything together. Though 1%, 1/4W MFR will cost you 0.30Rs, OPAMP at 2-500Rs each depending upon choice. Gold plated IC sockets ~30-80Rs each.

Even I do same way. Find a circuit - look for its pros and cons on different forums. Seek modifications and review after those proposed modifications - you are done.

BTW for modules there are many like this.

I never meant to say your build is flawed,just told not to take low cost boards
and use directly.

 

[omishra]

I never meant to say your build is flawed,just told not to take low cost boards and use directly.

Sure! no problem. I wanted to tell him source of good kit. I think my message did not convey correct message. Sorry about that. Rather, we need to find out something good solution for OP or forum member, please come for the help.

 

[vardesh]

Hi,
Thx for reply.i would like go with readily available ones as per my specs.I have no idea whether Part express ships them to india.

 

[sunilj]

Vardesh,

Are you looking for an active (electronic - will require a transformer, power supply and a separate box) or passive with capacitors, resistors etc...

Sorry but the posts are not clear.

If you were to do passive, I think Madisound will design, build & ship here, should not be a problem. Visit your local ATM a couple of times before placing the order

OR

skip the ATM trip, get a design and make one. Beauty knows no pain, the damn passive goes " INTO " the speaker, so you can BS to your friends all you want and they'll believe your Rs 30K x-over, cause the one you made (for Rs 5K) has 95% of the same sound.

Hope that wasn't confusing.

 

[kaushik]

Madisound designed XO! then import ...will it not hurt pockets

 

[vardesh]

sunilj : It will be passive circuit.But low cost.

 

[vardesh]

Hi,
I have directly connected the woofer to amp , but it not sounding good .Can anyone share a simple diy idea for low pass filter .

 

[doors666]

add an inductor in series and capacitor in parallel, calculate the values according to the lpf point desired.

 

[vardesh]

Thx for reply.I have 8inch peerles (8 ohm) driver.i will use it with norge 2060 amp.Any help on values .

 

[doors666]

Thx for reply.I have 8inch peerles (8 ohm) driver.i will use it with norge 2060 amp.Any help on values .

You have to decide on a xo point first.

 

[vardesh]

Hi,thx for reply.I do not much on this.Looking for something that cna work good.Any suggestion .

 

[doors666]

you need a low pass for the woofer and a high pass for the tweeter, thats a full crossover. You are making a 2 way speaker right? You need the t/s parameters for the drivers to identify the crossover point.

8" drivers rarely mate with a tweeter well enough for a two way, unless the drivers were chosen very carefully, there is a very good chance they wont. Your woofer will end before the tweeter can even begin leaving a hole in the frequency response.

 

[vardesh]

HI,
i have added woofer to Kenwood BS .The woofer is of peerless.
s20ni 8ohm is the model.

View attachment 123.pdf


Pls check pdf

 

[doors666]

HI,
i have added woofer to Kenwood BS .The woofer is of peerless.
s20ni 8ohm is the model.

View attachment 6970


Pls check pdf

tweeter response?