I think the sigma22 is more appropriate for the opus since it has dual rails, and the opus dac boards require separate rails for the analog and digital stages. What exactly does a zapfilter do? I keep hearing about it and I'm curious to hear how it affects the sound.
Cotdt, I left my opus dac at Johnsonad's place, so it would be great if you two could somehow meet up and do a comparison between your zhaolu and the opus dac. I'm really interested in seeing if the zhaolu also has the 3-d imaging that the opus has with the speakers.
Personally after listening to the Opus thru the 650's, dt770s, and d5000's all balanced, I don't believe it needs any more bass. Particularly when switching between the 650's and the d5000's, it strikes me as having a neutral enough signature that it doesn't overemphasize the sound after the headphone's coloration. Perhaps Johnsonad will post his impressions since he has a larger variety of headphones than I do.
By the way, I'm not joking about the speaker part even if I probably sound a little overzealous right now.....the detail, soundstage, and 3d-ness of the sound with speakers is unbelievable with the opus when compared to the Ori Zhaolu, Meridian 805, and Sony 9100ES. Has anyone else tried hooking up their Opus to speakers?
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