DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 14 Aug 2018, 14:46

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: 07 Dec 2015, 16:31 
Offline

Joined: 07 Dec 2015, 09:33
Posts: 1
Hi everyone,

First off awesome site, with loads of info and great pictures etc. :thumbsup:

I'm thinking off building/ buying my own portable headphone amplifier. I've got a set of Beyerdynamics DT990 Pros (250 ohm) headphones on the way and would like to power them properly, when using my laptop. What design in the forum would some of you suggest, or what USB amp/DAC would you suggest? I've got a sinking suspicion that my USB post is quite noisy but I've got a DC 19 V, 1.58 A spare adapter.

Also, have any of you designed an amp with TI's tpa6120a2 stereo amp? (http://www.ti.com/product/tpa6120a2)

Thanks and check laters! :up:


Top
 Profile  
 
PostPosted: 09 Aug 2016, 14:34 
Offline
User avatar

Joined: 05 Aug 2016, 14:35
Posts: 218
A few things:
a) Most computer/streaming sources are no better than they should be. Meaning that the on-board amp for your sound card will provide sound that is "as good as it gets" to your headphones. Additional amplification will only exacerbate the already-existing noise.

Unless you are using a digital output from your computer that requires a DAC to translate, I am not sure you will realize any gain from that option. And if you are going this way, you will be outside the DIY capacity of most individuals. And, these beasts are available off-the-shelf from the usual sources - AMAZON for instance. Look up this one as a typical option: FiiO E17 Alpen Portable Headphone Amplifier USB DAC.

Yes, I am preaching heresy to push you away from DIY in this instance, but the brute reality is that unless you are one of the few and very skillful, you will have an expensive bag of parts when done, and the ready-made options are plentiful.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: Google Adsense [Bot], wdecho and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy