2 Way Active speaker amp module

[Aniket]

my recent creation, a 2 way active speaker amp module with active crossover, crossover frequency can be tuned.

300-500W for low frequency, 50-100W for high frequency,

some pics:


https://drive.google.com/open?id=0B83NgqcNMzasWUNpS0dHS0RTVkE

https://drive.google.com/open?id=0B83NgqcNMzasa2ZKaTZKNE5qUkE

https://drive.google.com/open?id=0B83NgqcNMzasN25xTVJvWGppeTA

https://drive.google.com/open?id=0B83NgqcNMzasX2luMGlKemd3UTg

https://drive.google.com/open?id=0B83NgqcNMzasTm83T1otcWhvYm8

https://drive.google.com/open?id=0B83NgqcNMzasSFAwWjdPR0N2N1k

https://drive.google.com/open?id=0B83NgqcNMzasMUhmeEc2UU9CS00

Cheers!!!!

 

[iaudio]

Aniket, congrats on your new build. However, I am not able to see the photos. It would be great if you could share tech details of your amp as well as crossover section.

 

[Aniket]

Aniket, congrats on your new build. However, I am not able to see the photos. It would be great if you could share tech details of your amp as well as crossover section.

Thanks man,

pics may be visible now, or here's the link for the album: https://drive.google.com/open?id=0B83NgqcNMzasMUhmeEc2UU9CS00

Amp section has two amp circuits, one for low frequency(300-500W), other for high frequency(50-100W), power output depends on the power supply and choice of output devices. power supply is on the same PCB.

Low frequency amp is Class G, THD<0.01% at rated power, high frequency amp is Class AB, THD<0.004% at rated power. both amplifiers are incorporated with number of protection and sensing circuits, clipping indicators etc. the relay board is separate.

Active crossover is on a separate PCB, with balanced inputs, 80Hz low cut switchable filter. crossover is a 4th order 24dB octave with crossover frequency centered at 2500Hz, which can also be adjusted, a master volume control with onboard gain control for tuning for different speakers. there's also a peak level indicator there.

Regards,
Aniket

 

[sadik]

Congratulations Aniket

 

[Hiten]

Nice work Aniket.
Regards.

 

[avesbilal]

Congratulations Aniket.. Amp module looks good.

Regards
Bilal

 

[bibin3210]

Awesome work Aniket :clapping::clapping:
Finished PCB looks very professional and neat layout....keep it up.

Regards,
Bibin

 

[Aniket]

Thanks to all,

soon i will be making speakers for this cooker

 

[tuff]

Great stuff man. Wish I had the talent.

 

[har297]

module looks good Aniket,

Guess this will best suit for 2 way monitors.


Thanks
Harsha

 

[Aniket]

module looks good Aniket,

Guess this will best suit for 2 way monitors.

Thanks mate.

this module is suited for both pro as well as home audio applications. yes this will work great in studio monitor application as crossover frequency and gain is adjustable to get a absolutely flat response of the complete system.

I primarily designed this for pro audio applications, but considering the THD, noise performance and sound quality it can well surpass many good hifi systems.

Regards,
Aniket

 

[Aniket]

The amp module is completed and tested. some pics:

Regards,
Aniket

 

[arunkvivek]

Looks like the pics are not loaded yet.

 

[tcpip]

I primarily designed this for pro audio applications, but considering the THD, noise performance and sound quality it can well surpass many good hifi systems.

For home audio active systems, the amps may well be excellent, but the crossover may need more flexibility. A crossover of a speaker designed for careful listening usually needs adjustable Q in the filters, plus at least 1-2 channels of parametric eq to sort out uneven frequency responses. Time alignment between drivers may need an all-pass filter with adjustable delay. Asymmetric slopes are common too.

Just a crossover with a specific slope is great for pro applications, like sound reinforcement situations or concert halls.

 

[Aniket]

For home audio active systems, the amps may well be excellent, but the crossover may need more flexibility. A crossover of a speaker designed for careful listening usually needs adjustable Q in the filters, plus at least 1-2 channels of parametric eq to sort out uneven frequency responses. Time alignment between drivers may need an all-pass filter with adjustable delay. Asymmetric slopes are common too.

Just a crossover with a specific slope is great for pro applications, like sound reinforcement situations or concert halls.

Correct

the crossover here is tuned to a particular set of drivers. an Eminence Compression driver and two 10" or 12" mid bass. Its a 4th order 24dB octave.

But, I have designed the crossover to be fully customized later for different drivers and different applications.

Regards,
Aniket

 

[raja_mastana]

Great work Aniket! Amazing talent
Would you mind putting up a short tutorial about these different components used and its purpose - for novice users like me

 

[tcpip]

Would you mind putting up a short tutorial about these different components used and its purpose - for novice users like me

Would you like to buy and read a book or two?

 

[raja_mastana]

Would you like to buy and read a book or two?

Why do we have a forum? Why not every one just read books

 

[tcpip]

Why do we have a forum? Why not every one just read books

A forum is useful to fill the gaps which books won't fill. The authors of books may not be willing to clear your doubts on 1-to-1 communication.

But to ask a FM to write a short tutorial may be presuming too much on his time.

 

[HormusPeston]

It looks fantastic Aniket. Well done!
Cheers,
~HP