I am building an amp to drive speakers, with my MAC/iTunes as the source. I will start off using the analog L/R headphone outputs to drive the input of the amp.
My question is ... what kind of load can the headphone jacks drive?
I am having a hard time finding such info in the MAC specs.
Eventually I will add a DAC. For now, I plan to use a volume control POT in the AMPs input stage. My plan was to use a stereo, 10K POT. Thus, the MAC would have to be able to drive the 10K load impedance. Is this an issue?
Rob
My question is ... what kind of load can the headphone jacks drive?
I am having a hard time finding such info in the MAC specs.
Eventually I will add a DAC. For now, I plan to use a volume control POT in the AMPs input stage. My plan was to use a stereo, 10K POT. Thus, the MAC would have to be able to drive the 10K load impedance. Is this an issue?
Rob
the mac should have a line out or a line out setting on the HP out. it will drive 10k just fine. of course the quality wont be fantastic, but it'll get you started
The headphone jack can drive headphones, some of which can be as low as 16 Ohms, so 10k will not be a problem. The quality may be perfectly adequate, I've never listened to a Mac, but I've had a more than few PC laptops and desktops and the built-in sound on most was good.
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