Decent enough amp?First off: If this shows up as a double post, my apologies. I posted nearly an hour ago (I think) and just got a blank screen and the post never showed. So I'm trying it again:
Sorry to dig up (and hijack?) this old thread, but I've been searching for just this sort of info. I have just ordered some K701s ($233 on ebay!) to replace my old and finally broken HD530s. I have an older (~1989) Rotel RA-810A integrated that I am hoping to use to drive these headphones, as I really don't have the budget to also get a headphone amp. After reading this thread, I checked the schematic that Rotel emailed me, and it appears that indeed the headphone jack is run right from the speaker posts and then through a couple of resistors (not sure the values, if important). If I remember correctly, the rated power is 10W (maybe 20W?) per channel.
Think this will be up to snuff? Or would a cheap (less than $200) headphone amp really make a difference? I haven't had any complaints about any of my gear (for the price), though it is all about the same age.
Just in case it matters, or anyone's interested: Rotel RA-810A, Mission DAD5, Mission DAC5 (lately used to connect onboard SPDIF out from media PC), Aiwa AD-F800, Systemdek IIX with stock Profile arm and Blue Point cartridge, Mission m35i, plus a Rotel RA-870 that I acquired but don't use because it doesn't sound quite right (probably due to age/abuse and could use some repairs?). No special cables or interconnects, just bigger is (usually) better. Music choices? You know, anything that sounds good, I enjoy it all.
Also, any harm in running that amp with speakers disconnected, since they don't turn off when the headphone is connected?
Thanks, any opinions, etc. would be very much appreciated.