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Posts by goodvibes

I can't remember which but Grado recommends 100 or 200 hours of cycled break in if you speak to them. I've had a few pair and they all responded positively to a few additional high volume 8hr sessions after normal run in. Obviously don't break them but louder than you could listen. The diaphragm doesn't have a rolled surround and relies on the natural compliance and damping of the material that supports the armature.
Easy enough to see and obviously not nearly flat. Same graphs we've referenced from Headroom for a decade.  Why I always though some added impedance or something with a high output impedance may work well with the Klipsh to give a natural EQ. Much like Etymotic does by adding 75 ohms in front of the P to make it an S. For original response, the 8 x rule relative to minimum impedance will keep aberrations under 1db regardless of impedance swings. Doesn't matter the shape of...
A2(+) is best sounding of the lot and have more bass than expected IMO. Can't say whether the woofer helps or hurts it. It's really difficult to gets the mids right with some tempo and res in this price range and the a2s do that.
Have you run them hard a few times while out of your ear. Try that for 8 hr stretches a few times. May help. I found a bit vigorous breakin useful.
To be fair, I think there is some variability in all the MAs but yah, GR10 was my fav of the lot. Haven't heard the EQ-8
Sounds like you may be able to hear both universals tomorrow and I would go with what sounds better to you on audition with the same source. Neither is as warm or cold as your current phones. jh13 has more low bass without warming the mids. It comes down to whether you feel that represents a more accurate representation of live listening where bass mixes across channels or not. I happen to like it but it's personal.
This is why I told him to connect to his computer in program mode. I mistakenly said to hold the next button while connecting. It should be the Vol + button. Of course, I have no idea if a MAC will recognize it. May need a PC and this link for the tool and it's drivers http://www.freak-tab.de/freaktab/Rockchip_Batch_Tool_v1.7.rar
Not that it matters but here is what Rin wrote when measuring a 535 with the same impedance curve and driver compliment. "an addition of 33 Ω yields a sharp -6 dB dip at 6 kHz". That would be from it's normalized response. Calculations are also relative to where max output is achieved at high impedance and we haven't even reached it in that graph. Not an arbitrary reference line. That it's still steeply rising like that at the top has me thinking the output impedance...
The relays may be before the output stage to not pass DC or pops along to the amp section while coming up. Relays tend to hold up as well as switches or pots but it has to do with the quality of each and really, the earphones only touch at single points as well. Barrel against a perpendicular rounded contact. Also not a fan of high current relays in speaker paths but have no issue with them in relatively low current applications. It generally comes down to using a relay, a...
I think we all know it matters. Rises at the top above 10K but as I said, when you get into multi ways it's variable due to a few factors. I would guess the output impedance above 10 ohms with 220uF coupling caps.
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