Zaubertuba
100+ Head-Fier
- Joined
- Feb 3, 2009
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I'm preparing to build a Balanced JISBOS-with-gain headphone amp. I need to be able to switch my source to drive either the headphone stage or send a line-level out to my amp for my speakers. I would like to have a front-panel switch so my wife can switch back from the headphone output to the speaker output to the amp (actually a receiver, but I'm using the term "amp" so as not to confuse with a balanced receiver circuit, which I may need to implement) at will. Currently my 1212m is driving my headphone amp, and the onboard Realtek chip is driving the power amp. She has to switch between the 1212m and the onboard sound card in the computer settings, which is a pain, and I'd rather not use the onboard sound anyway.
The way I see it, I could implement it like this:
1212m--->Switch--->Bal. Receiver--->Unbalanced Line Out
1212m--->JISBOS Boards w/gain switch--->Switch--->Bal. Receiver--->Unbal. Line Out
The way I see it, I could implement it like this:
1212m--->Switch--->Bal. Receiver--->Unbalanced Line Out
...or like this:|--->JISBOS Boards--->Bal. Headphone Out
1212m--->JISBOS Boards w/gain switch--->Switch--->Bal. Receiver--->Unbal. Line Out
Are either of these options practical, or is there another better option to accomplish the same thing?