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hellishspeeder
1
Aug 28, 2018
Hi, i have recieved my pair of HE4XX. I started to listen some music and compared to my Sennheiser HD515. I'am still waiting for my headphone amp so as for now i use my Yamaha RX-V1800 AV reciever with the Pure Direct button ON and my Pioneer DV-600AV cd player. I have to turn the volume twice as loud as with the HD515. Even though they said it's easy to drive. I have got high expectations. I don't want to say the HD515 is better sounding, but i am very close to it. Now i am a bit dissapointed. What did i do wrong? OK and why does it sound WAY better with my Macbook Air??? Will it sound better with the O2 amp?
domcobb1
56
Aug 29, 2018
hellishspeederThese are nowhere easy to drive lol. They have a low impedance but an incredibly high sensitivity meaning you need significantly more power to increase the volume compared to a typical pair of dynamic headphones. It will sound much better with the O2 amp as it will have the power it needs to function well
hellishspeeder
1
Aug 30, 2018
domcobb1Thanks! I hope so! :)
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