Rabbit
Administrator
Posts: 7,087
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Post by Rabbit on May 10, 2015 15:22:03 GMT
I really like the hd600 too. Just a fraction lighter soumding than the Hd650. Mine has blaxk drivers so it's an older one.
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solderdude
Administrator
measureutternutter
Posts: 4,882
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Post by solderdude on May 10, 2015 17:51:32 GMT
Thank you for the comparison between both; so all in all the advice is to buy the one is cheaper and/or the one which got the colour we like the most? With a Kameleon/Sennheiser the answer is yes, without one it may be a matter of preference and or needs. About technical stuff (sorry but I have a tecnician mind and cause of that many in-depth questions!), the impedance of HD600/HD650 changes a bit behaviour with the active filtering? Looking at Tyll measurements ( link) both headphones are in the 300-500Ω impedance range (310-520Ω for HD650 with the peak at 85Hz and 290-540Ω for HD600 with the peak at 90-100Hz); I don't know if it works exactly like common speakers but if it was the case the more the driver has to reproduce lower frequencies the more it will move up and down to move more air; with the added frequency response (50->10Hz) I think the peak in impedance will shift a bit toward the lower frequencies, I can ipotize around 65-70Hz: am I right or I'm saying total bullshit? Nothing changes in the impedance plots. The headphones are still entirely stock. They are just fed with the reciprocal frequency range with respect to 'flat'. So curved + anti-curve = flat. If were to physically change the driver and or dampening then the impedance plot may shift somewhat.
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