guide me to make a active subwoofer in class d amp

[kirubakaran]

hi,
greetings,
pls guide to make a active subwoofer.
thanks in advance.

 

[DUG]

Greetings

You have made a request to make two separate projects.

1. Subwoofer

2. Amplifier

There is lots of information in diyaudio for both projects.

Search and read, then think about what you want to end up with and what you have to work with.

Learn well.

 

[airwavesystem]

hi,
greetings,
pls guide to make a active subwoofer.
thanks in advance.

hi,there are many reference in this forums,if you want to be a good class D design or diyer,you can refer to my thread,i am sure you will gain somethings~~


http://www.diyaudio.com/forums/clas...ass-d-amplifier-lets-make-class-d-easier.html

 

[kirubakaran]

hi,there are many reference in this forums,if you want to be a good class D design or diyer,you can refer to my thread,i am sure you will gain somethings~~


http://www.diyaudio.com/forums/clas...ass-d-amplifier-lets-make-class-d-easier.html

hi,
greetin,
first i sellect irs2092 class d audio but irs2092 is expensive its indian money is 400 ruppes so then i try irs500, the amp is ok then the problem is power supply and crossover desing for this amp. pls gudie to desing crossover.

 

[kirubakaran]

hi,there are many reference in this forums,if you want to be a good class D design or diyer,you can refer to my thread,i am sure you will gain somethings~~


http://www.diyaudio.com/forums/clas...ass-d-amplifier-lets-make-class-d-easier.html

first i try irs092 but it is expensive so i try irs 500 its working good then the crossover is the problem. how to desing crossover for class d amp

 

[andrewlebon]

crossover is simple to make active crossover for sub filter
warm regards
andrew lebon

 

[andrewlebon]

BLOCK DIAGRAM SUB FILTER

GOOD FILTER

 

[andrewlebon]

sub filter WITH PCB

FILTER

 

[kirubakaran]

thanks sir

FILTER

then power supply is problem which is good for class d, transformer or SMPS.

 

[airwavesystem]

then power supply is problem which is good for class d, transformer or SMPS.

transformer is good for audio,best THD but too heavy
smps are smaller and Popular in Consumer products but have more niose and Handle with care!

 

[kirubakaran]

thanks sir,

transformer is good for audio,best THD but too heavy
smps are smaller and Popular in Consumer products but have more niose and Handle with care!

how to make a auto on/off when audio signal detected.

 

[airwavesystem]

how to make a auto on/off when audio signal detected.

Maybe you can add a detect circuit(AC-DC or use OP-AMP) before the amplifier input,but this will be influence the quality of audio signal that you must be careful~~~