Headphone amp ?

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pre65
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Headphone amp ?

Post by pre65 » Thu Jul 10, 2008 11:16 am

Hi-i am not really into headphones,but i might want to in the future.

Can i use the output from a DAC to feed headphones,or failing that the output from a valve pre ?

If so how ?
Life is what happens to you while you're busy making other plans. John Lennon

G-Popz THE easy listening connoisseur. (Philip)

RSC
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Post by RSC » Thu Jul 10, 2008 11:07 pm

Hi Philip,

Output from a DAC: assuming you have a volume control here (otherwise, you'd be flat out volume all the time), you'd need a "two phono plug to jack socket" lead to make the connection and then you'd need to look at the headphones' impedance and how that would react with the DAC o/p voltage and o/p impedance.

Output from valve pre-amp: you've got the volume control, but still similar issues re. connections and electrical characteristics.

Unless you're talking Stax or similar, with their own energiser/pre-amp.

Be better to buy a cheap h/p amp (Creek, Project) or build one (WD do a valve kit), I'd have thought...

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Post by kuroguy » Wed Mar 18, 2009 1:57 pm

Phil,
If you want to try headphones I recommend you build the Starving Stdent Headphone amp (assuming you can source the 19J6 tubes). It can be built for beer money and sounds great. If you can't find 19j6 tubes you could always use 6j6 and substitute resistors for the tube heaters in the MOSFET load. you would need a slightly bigger power supply and a egulator or big resistor to drop the voltage for the 6 volt heaters. I'd do both heaters in series if I used 6j6. In fact, I plan to grab up a bunch of 6j6 for when I run out of 19J6.

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Ali Tait
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Post by Ali Tait » Thu Mar 19, 2009 4:49 pm

You could just buy a Beresford.The new 7520 is supposed to have a cracking headamp.

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Ali Tait
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Post by Ali Tait » Thu Mar 19, 2009 4:51 pm

You could just buy a Beresford.The new 7520 is supposed to have a cracking headamp.

little eddy
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Post by little eddy » Sun Mar 22, 2009 9:04 am

Another cheap hybrid design using 12V supply and uses a 12AU7: http://diyaudioprojects.com/Solid/Tube- ... phone-Amp/

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Post by labiteena » Thu Dec 03, 2009 11:41 am

How can I convert a sony ericson headphone , to connect it to my lap top and use it for skype?? I bought a sony ericson headphone, without realing it was for the mobile phone. Is there any wire of some sort that could connect to my laptop the plug from the headphone( and mic combination) , which is compatible with a socket in the mobile but not the laptop.
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Nick
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Post by Nick » Thu Dec 03, 2009 1:42 pm

Depends on the connector that is on the headphones. You would normally need to get the headphone to end in a pair of 3.5mm jacks.
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kuroguy
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Post by kuroguy » Fri Dec 04, 2009 3:59 am

Was thinking about this phil. build a mosfet source follower and feed it with your valve preamp. You should be able to do that for under $30. If you don't like it your down side is $30 and you learned about source followers in the process. You can feed the 3 channel version with a pair of cheap switching supplies. +- 12 volts works well.

http://phonoclone.com/diy_sze.html
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Post by rainy22 » Wed Jun 15, 2011 12:18 pm

As we all know that the most famous magic sound of Monster, the highest rate on the mirror is the Monster Studio headphones, NBA star,U.S. singers use this product, go to search it in Baidu or Google,choose their best one.

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Post by shane » Wed Jun 15, 2011 12:56 pm

rainy22 wrote:As we all know
Do we?
A camel is a horse designed by a committee.

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pre65
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Post by pre65 » Wed Jun 15, 2011 2:33 pm

rainy22 wrote:As we all know
Not me sunshine. :wink:
Life is what happens to you while you're busy making other plans. John Lennon

G-Popz THE easy listening connoisseur. (Philip)

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