Selling my Schiit Modi for US$69 (AU$79). Comes with USB cable. Buyer pays shipping and paypal fees. For shipping costs go to http://auspost.com.au/apps/postage-calculator.html and enter "Up to 500g" weight.
Did you connect the cables the correct way round? You might have inverted polarity. Try reversing the cable connections and check if you a hear a difference. You can do a polarity test here:http://www.audiocheck.net/audiotests_polaritycheck.php
I owned the HD600 and not the HD650 so I can't comment on that. The ADs sound fine out of my iPhone 4S and Sansa Clip+ even without an amp. I recommend the Leckerton UHA-6S.MKII amp if you want an amp.
I use Meelectronic single flange small tips. I tried a few other Meelectronic tips and those fit me the best. I get reasonably good isolation too. I didn't get a FR graph. However, it sounds exactly like how I see other Miracle FR graphs. My EQ is almost an inversion of the frequency graph apart from the upper midrange (due to HRTF).
The universals should have the same sound as the customs. I know the exact sound I'm looking for, perfectly flat neutral sound. The Miracles don't give me that and it is very apparent after listening to just a few songs I'm familiar with.
I've had my Miracles for two days now and I'm sad to admit that I don't like it. I was hoping it was going to be a neutral IEM like many people claim.
Here are my observations:
Extremely emphasized 6.5KHz region which causes unbearably harsh treble.
Lacking in upper treble (>8KHz)
Everything under 1KHz is boosted by 5dB resulting in overemphasized bass and lower mids
Recessed 2KHz to 4KHz region resulting in under-emphasized female vocals. Female vocals sound...