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Volume pot on headphone amp
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creekree



Joined: Mar 30, 2006
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PostPosted: Wed Aug 10, 2016 3:11 pm    Post subject: Volume pot on headphone amp
Subject description: on input or output?
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Hi all,

I rcently bought a small headphone amp on Ebay:



http://store3.sure-electronics.com/2-x-150-mw-class-ab-headphone-amplifier-board-lm4881

I want to use it with my LXR drummachine, but it is far too loud.
There is no volume control on this thing, so I want to wire a stereo pot to tame the volume a bit.
Where would I preferably put such a pot - in the input side or on the output side?

Thanks!

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sneakthief wrote:
Your square wave isn't loud enough.
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Blue Hell
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Joined: Apr 03, 2004
Posts: 21626
Location: The Netherlands, Enschede
Audio files: 172
G2 patch files: 319

PostPosted: Wed Aug 10, 2016 3:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

Input side. The output side has some power which would need thoughts.

Assuming the thing is not noisy .. but when it is noisy - output side. But .. as there is some power that would need thoughts.

So input side basically, unless the thing is unacceptably noisy .. but then again .. best to get rid of it then.

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Jan
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creekree



Joined: Mar 30, 2006
Posts: 192
Location: Morgenland Neukölln
Audio files: 1

PostPosted: Thu Aug 11, 2016 4:21 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks,

I will give it a try.
I dont expect it to have studio quality, I just need something that I can plug into the LXR, without the need to fire up the whole studio.
The LXR (obviously) does not have a headphone output, and no volume pot either.

Christian

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sneakthief wrote:
Your square wave isn't loud enough.
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creekree



Joined: Mar 30, 2006
Posts: 192
Location: Morgenland Neukölln
Audio files: 1

PostPosted: Sat Aug 13, 2016 4:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

Yes, it worked perfectly. I am surprised about the amount of noise - there is none! If anybody needs an ultracheap headphone amp, I can recommend this one for your "quick and dirty" needs.
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sneakthief wrote:
Your square wave isn't loud enough.
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Blue Hell
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Posts: 21626
Location: The Netherlands, Enschede
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G2 patch files: 319

PostPosted: Sat Aug 13, 2016 4:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

Cool
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Jan
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