Jump to content

balanced headphone protector


Recommended Posts

  • 9 months later...
  • Replies 83
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

Diodes are diodes?  That is inconceivable!

No, they are diodes.

is there some way to make this uncompatible with Ultrasones?

Posted Images

Hi guys

To power the board what is the best method or only method?

For example if i am using a GRLVs for my Dynahi should i have three power supplies one for each amp board and another for the protection board?or there is another way that i am missing?

Don´t hit me in the face if this is a noob question eh eh

Link to post
Share on other sites

Just power it from one of the amp PSUs, though I can't remember what the Protector's input voltage limit is. I assume your Dynahi is at +/-30? Check on the Protector...

EDIT: the boards have 7812/7912 regs on them, so the input voltage limit would be 35 Vdc.

 

 

Sent from my iPhone using Tapatalk

 

Edited by Pars
Link to post
Share on other sites
10 hours ago, Pars said:

Just power it from one of the amp PSUs, though I can't remember what the Protector's input voltage limit is. I assume your Dynahi is at +/-30? Check on the Protector...

EDIT: the boards have 7812/7912 regs on them, so the input voltage limit would be 35 Vdc.

 

 

Sent from my iPhone using Tapatalk

 

Thanks Pars. Yes 30v. So there is no problem if I join two wires in the same output of one of the amps psu? By the way, do you have any of your boards that you could sell it to me? The Led is nice addition that I could use.

Link to post
Share on other sites
  • 6 months later...

Kevin,

Want to build this board and try it instead of e12. Few questions if you allow:

Is trigger offset DC with standard resistors 0.5v? Is it from O+ to O- or from O+ to GND/O- to GND?

Is it suitable for non-differentail balanced amps like 4-board B22, 2-board KSA5?

Is it suitable for SE amps (like 2-board B22, 1-board KSA5)? Just use R+ and L+ terminals?

Input GND taken from where? If it's signal GND, then take it from any board? Can it be left unpopulated?

Link to post
Share on other sites

you can calculate and adjust what trigger voltage you want.

all 4 inputs (or 2 if you depopulate) are measured against ground. so any 1 or more of the inputs triggers the relays.

power supply ground is signal ground and has to be connected.

 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...