Ok here it goes.......




I want a Headphone Output to Speaker Output Adaptor.


Basically, I want an adapter that will allow me to use the 1/4 inch output of an EXTREMELY (don't worry about power) powerful headphone amp to power speakers. A cable that has a male 1/4 inch thingy (the word for it escapes me at this time) on one end and binding posts (or spring posts) on the other end.


The only thing I found close to it is an adaptor made by Griffin Technology for the Macintosh.

Here it is: http://www.griffintechnology.com/pro..._breakout.html

The only problem is I believe the ProSpeaker input is different from a 1/8 heaphone input.




So if you know of ANY way to power speakers using a headamp, please tell me.


THANK YOU!!!!!!!!!!

Why do you need binding posts or spring clips? Why not wire the speakers directly up to the headphone amp?

This would be a far easier task to accomplish. You could do it easily your self with a cheap set of interconnects you don't have any strong feelings for. Simply hookup a 1/4"->RCA adapter to the headphone amp (rat shack will do here), then connect the RCA interconnects to that. To hookup the speakers, the easiest way would be to just clip off the RCA plugs (I told you not to use a cable you liked) and use the bare wires in the speakers binding posts or spring clips.

This would work great just to test stuff out very cheaply (of course it's not a super-high grade solution for permanent use in a good speaker setup, but it doesn't sound like that's what you're going for).

Be careful hooking any headphone amp up to speakers directly though, the very low impedence of most speakers (compared to headphones) and high current draw will suck the juice from most headphone amps rather quickly, possibily even damaging it in the process. That's why Mr. Meier recommends the use of the Audio Valve Impedanzer with the Prehead or RKV, when attempting to drive speakers.

-dd3mon

That is a good idea!!! I feel stupid for not thinking of it myself.


However, how do I make sure I correctly seperate the ground from the signal wires? If I use coaxial RCAs will that pose a problem (the cheap RatShacks are coaxial)?

Quote:



If you have a multimeter determining signal from ground shouldn't pose a problem (then label with tape or something). If not - I don't believe any normal speakers can be damaged by inverse polarity (in fact, I'm all but positive they can't) - so this shouldn't be a big deal at all. (Someone please correct me if I'm wrong!)

As for the coaxial RCA's - I couldn't say. I don't think so, but I've never cut up a rat shack RCA - so I'm sure you'll run into stuff I didn't think of. Hopefully someone else can chime in here.

-dd3mon

Why dont you just buy a cheap amp like a used NAD or Rotel and use the HP amp as a pre? Less work and might cost just a little more than the cable.

Czilla9000

If you want something like this professionally done, I can recommend the folks at:

http://stefanaudioart.com/StefanAudioArt.html

They've done custom work for me in the past, and I've been happy with the results.