--2012 MacBook Pro from which I play high-quality MP3s (rarely lossless), mostly classical (lots of piano music, lots of orchestral music)
--Alesis M1Active 320 USB monitors that I connect to the MBP via USB and use as my main computer speakers
--The monitors have a headphone jack and their own on-board DAC (specs from the manual: 16 bit delta sigma, 44.1kHz or 48kHz sampling rate)
--I don't know anything about DAC specs, and I'm having trouble finding the specs for the MBP anyway
I'm not an audiophile, but I need new headphones -- and I'd like something decent. Thinking about purchasing the Sennheiser HD 558 or HD 598 (but am open to other recommendations, $200 max).
So here are my questions:
1. If I buy the 558s or the 598s (or something like them), would you recommend plugging them into the monitors rather than directly into the MBP?
2. If so, are the DAC specs of the monitors decent? Or would you still recommend purchasing a separate USB DAC for headphone listening?
3. Given the info I've provided, do you have any headphone recommendations or general advice on how to proceed here?
Many thanks from a noob.