Jump to content
Sign in to follow this  
dgage

Need test source

Recommended Posts

I need a small source device to be able to test our powered subwoofers.  A phone doesn't provide enough voltage to push our subwoofers to their limits.  I have used a computer with a USB interface (Focusrite 2i2) and it can get fairly loud but I forgot my computer at home one day and couldn't test.  So I'm hoping for something pretty small that I can play through or attached to a phone and has enough voltage to get the subwoofers really moving.  Does anyone have some ideas on such a mini preamp with subwoofer out?  Thanks.

David

Share this post


Link to post
Share on other sites

Thanks Kipman725. I think this will work well for my needs.  Since I’m just using it for testing purposes (no measurements), I won’t even need to worry about modifying it for roll off.  

Share this post


Link to post
Share on other sites

What‘s the purpose of those caps? DC blocking? Wouldn‘t it possible to just short em instead then?

Share this post


Link to post
Share on other sites
On 6/18/2020 at 9:52 AM, peniku8 said:

What‘s the purpose of those caps? DC blocking? Wouldn‘t it possible to just short em instead then?

possibly they are not needed, its hard to tell because powering the unit up outside its case is tricky. 

Share this post


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.

Loading...
Sign in to follow this  

×
×
  • Create New...