cel4145
Headphoneus Supremus
Having recent purchased the 660s and being thrilled with them, I'm wondering if I should "upgrade" my source. I'm currently using a Schiit Hel dac/amp, but I've been considering moving to a modi/magni stack. I use a desktop mic now in the rare instances where I game online so I don't really need the mic input of the Hel.
Was looking at the modi and magni heresy specifically. Would there be an upgrade over the Hel in sound, or probably fairly similar? Anyone with experience?
You won't benefit from more power than the Hel provides. It has plenty for the HD660S. The HD660S are 104db/V sensitivity, 150 ohms. Plug that into this headphone power calculator
https://www.headphonesty.com/headphone-power-calculator/
Needs 27mw into 150 ohms to handle 110db dynamic peaks. That's very loud! And the Hel is rated 200mw into 300 ohms, so you are far from ever reaching its limits.
If you are looking at very accurate solid state amp/DACs, you could easily have trouble finding much difference in sound quality. If you are looking to change the sound, look into tube amps.