DIY 3 Way Active X-Over

[bibin3210]

Completed building and testing the prototype of Active 3-Way X-Over. Going to start assembling the actual one with good quality components.




See the design ref. Silicon Chip Online - Active 3-Way Crossover for Loud Speaker Systems


Thanks,
Bibin

 

[iaudio]

Aha! So what about the Class A amps? Hows the progress?

 

[sachu888]

Hi Bibin,
did you make your own board?

Regards,
Sachin

 

[bibin3210]

@Taitus,

Waiting for the remaining Class A kits from Jims Audio. I hope this week it will get delivered here. And the Toroids will be ready by next week. After that will start the enclosure work.

 

[bibin3210]

@Sachin,

Yes, it is made locally. Not me, we have a resource here dealing with PCB manufacturing.

In-fact i was about to contact you to get the details of Pass B1. I am planning to build one.

 

[sachu888]

@Sachin,

Yes, it is made locally. Not me, we have a resource here dealing with PCB manufacturing.

In-fact i was about to contact you to get the details of Pass B1. I am planning to build one.

Hi Bibin,
Pass B1 is good,very natural no gain buffer,but some people prefer SSP .It sounds good.I am yet to build this,so I only go by reviews.You can read more here DIY Simple Active Preamp - AudioKarma.org Home Audio Stereo Discussion Forums

Regards,
Sachin

 

[bibin3210]

Sachin,

I am also following that thread at AK. Can you please share the Gerber file of B1 and SSP if you don't mind?

How about the SSP+B1 integrated combination?

Thanks,
Bibin

 

[sachu888]

Sachin,

I am also following that thread at AK. Can you please share the Gerber file of B1 and SSP if you don't mind?

How about the SSP+B1 integrated combination?

Thanks,
Bibin

SSP+B1 combo sounds great few Fms have tried this.In my system Bass was little rolled off with B1 and LDR.I am expecting improvement in Bass after adding SSP.FM Bhaskar had same problem,and solved it after adding SSP.

Regards,
Sachin

 

[bibin3210]

SSP+B1 combo sounds great few Fms have tried this.In my system Bass was little rolled off with B1 and LDR.I am expecting improvement in Bass after adding SSP.FM Bhaskar had same problem,and solved it after adding SSP.

Regards,
Sachin

I will try this combo after completing the active X-over project. By the way i will be starting the enclosure work soon. If you are interested please let me know.

Thanks,
Bibin

 

[sachu888]

I will try this combo after completing the active X-over project. By the way i will be starting the enclosure work soon. If you are interested please let me know.

Thanks,
Bibin

Do you mean cabs for amp/preamp?

Regards,
Sachin

 

[bibin3210]

Do you mean cabs for amp/preamp?

Regards,
Sachin

Yes, i have couple of resources here dealing with Acrylic, Aluminium and MS/CR sheets.

My plan is to build enclosure with 5mm or 10mm aluminium front panel and the rest with 1mm CR sheet. On the back side 2mm acrylic with labels engraved.

Thanks,
Bibin

 

[sachu888]

Yes, i have couple of resources here dealing with Acrylic, Aluminium and MS/CR sheets.

My plan is to build enclosure with 5mm or 10mm aluminium front panel and the rest with 1mm CR sheet. On the back side 2mm acrylic with labels engraved.

Thanks,
Bibin

I am very much interested.You can post this in SSP threads.There are few members interested.

Regards,
Sachin

 

[Audiodoc]

@bibin. I will also be interested in the enclosures. I have 5 projects waiting for the same.

 

[bibin3210]

@Audiodoc,

Sure, i will post the dimensions and drawings soon.

thanks,
Bibin

 

[vktarun]

Great project, what is your plan for amplifiers ? you need atleast 6 channels.

Hope to get it completed soon.

Vipin

 

[bibin3210]

Great project, what is your plan for amplifiers ? you need atleast 6 channels.

Hope to get it completed soon.

Vipin

Class A (Jean Hiraga's Le Monstre) for Mid and High, Class AB for Low. Work is in progress.

 

[vktarun]

what are the crossover points ?
Just putting this question because crossover points should be decided only after considering the driver parameters (fo and upper cut-off limits of the driver).

The reverse, I mean to say deciding first the crossover frequency and then finding a matching driver can be troublesome specially for Mid-range.

keep us posted on the developments.

 

[bibin3210]

what are the crossover points ?
Just putting this question because crossover points should be decided only after considering the driver parameters (fo and upper cut-off limits of the driver).

The reverse, I mean to say deciding first the crossover frequency and then finding a matching driver can be troublesome specially for Mid-range.

keep us posted on the developments.

The prototype was made with 239Hz & 5100Hz. That x-over points can be changed by varying the values of R,C and 2R.

Please see Table 1 in the following URL
Silicon Chip Online - Active 3-Way Crossover for Loud Speaker Systems

By the way my speakers are all ready, please have a look at the following thread:
http://www.hifivision.com/diy/25319-my-new-diy-project-3-way-floorstander.html