I'm new to AV, I just got Yamaha RX-v365 receiver and still yet to purchase speakers. I wonder if it'll burn it if I use it for headphones only for some time (it has something to do with impedance, I think). Advices deeply appreciated. Thanks!
@Parker Clack: Thanks for your reply. But, I'd like to ask again, just to be sure, I read that using speaker with impedance lower than the receiver's minimum specifications will cause overload and burn the receiver. How about no speakers at all?
Only if it's much lower. But even that is not aplicable in your case. No speakers at all would mean: an infinitely high impedance (impedance is the resistance to alternating current, without speakers no current can flow).
If you would short the outputs (connect them to each other, make a shortcut), the impedance would be 0 Ohms, that would indeed fry your amplifiers when you had sound (trying to) come out of it. 'No speakers' used to be bad in the old days, with different types of circuit and for a different reason, but that's no longer true now.
In the receivers I have used, you turn off the "A" and "B" speakers so the receiver knows you are not using the speakers. This is usually a button on the front and the "A" and/or "B" lights should be off when using the system without speakers.
It practice it shouldn't matter but to ensure a problem free experience simply turn them off.
I hope that helps and that you enjoy your new receiver.