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Posts by goodvibes

Did I tell you that I really liked your k10 review?
Same old school high current opamp used by the O2 as output buffer. Output impedance is actually just below 1 ohm. Just had to play with resistor values to get the gain and DC offset balanced out. Here's the circuit. I think I got the offset to a 0.1 mv and it seemed stable when the rails varied. I did this without a spec testing other than offset with an ohm meter but Rin measured it and it passed mustard. I balanced the power drain from the led and think I added some...
I wouldn't use 'output buffer' as the determining factor here. It can have them and still highish output impedance or not have them with lowish output impedance. I wouldn't personally care about how they've done what they've done and only about what they've achieved. For me it's rather moot because it's too large. The output impedance is reportedly around 2 ohms and down from prototypes. That's low enough but a question would be if stability has suffered into lower...
That is the ANV 3 and I still preferred it's sound to the BA.
It still wouldn't work that well across manufacturers but maybe useful if you have experienced one maker's products. We still need to remember that consumers ideas of linear vary quite a bit. How many here opt for (very) midbass heavy phones? It's a bit scary for makers to give enough info for consumers to misinterpret. Look at how often J. Harvey has been taken to task for his non-flat comment. What's flat? It's not just graphs, makers need to mince words for them not to...
I love measurements but take them with a grain and try very hard to not read in. With that in mind, I still do at times. It's human nature and my point was simply to guard against it. Info is additive and all worth having.  I think what FullCircle is getting at is that a manufacturer is free to use any compensation they deem fit so results across makers would be useless and many look ridiculously good. even with fixed compensation, tests can be manipulated unless all done...
I think he's being genuine. Lee, try the FW thing.
So I got Worm's RoCoo-ba and went through all the FW configs last night and interestingly enough, kinda liked them all which is unusual for me. I generally feel one is significantly better voiced. There are definitely preferences here but it's a friendly player.   For those that are comfy swapping around FWs, try the RoCoo-power FW with the player formatted to 8192 during the install. It's the same I used with my P when I had it and it's my favorite here as well.
Studios were around before Cube so if one is derivative.... Regardless, they won't sound the same as not even all the HiSounds sound the same. Studio V, A3, Rocoo-p and Rocoo-ba all have noticeable differences with the same SOC. They also measure flat so the differences aren't EQ. Doesn't mean the c30 may not be a great deal at it's price but it will be different. Using EQ would not be my way of equalizing the differences.
Even a speaker that measures flat at 1m will show rolloff and greater distances and your ear doesn't perceive flatness the same as a microphone. If an IEM was measured as truly flat to 20k in a cylinder, it wouldn't sound right. I'm a little surprised there isn't a more accepted compensation curve at this point. I know Etymotic has done a lot of work towards this a while back but I suspect they were done in mono and why they seem bass lean without natural acoustic...
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