skeptical
100+ Head-Fier
- Joined
- Jan 24, 2015
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I tried my z5 with fiio lc-re cable to get to 200 mw of my zx507 4.4 output.
sub-bass is magnificent! cable was on sale $170 instead of 210.
however, it has issues with left connection with z5. not stable sound. and it was extremely hard to connect/disconnect left earphone.
with R it's ok. but left.. sony mmcx socket is big, fiio body of mmcx plug is small.
z5 stock cables have additional puzzles to connect mmcx in correct position.
therefore I've ordered this adapter today. $37.5 for 50 sm long. copper cover with silver. ataaudio on aliexpress.
moon audio offered me to make similar adapter for $165...
how will u change the plug to balanced if zx90ex had only L+ R+ and Ground?
or u know it had L+ L- R+ R-?
by the way, what will happened if u push more than 200mW into xb90ex?
I had next experience with hifi ananda and mdr 1Am2, when I pushed volume above ~110-114(EQ subbass and bass freq maxed), zx507 automatically turned bass volume down.
thus to reach the maximum impact of bass, u need to turn down the voulme to ~100 and then go up to 108-112. not exceeding this lvl.
I don't know what you're trying to accomplish with this adapter but I know for sure 100% , you can not directly through adapter connect a 3.5mm jack to 3.5 female > balanced 2.5mm male. Doing that you will burn your source amplifier. I'm not sure about balanced 4.4mm pin mapping and what this adapter is intended for.
Pin mapping for balanced 2.5mm starting from the tip is R-R+L+L-
The common ground most of the time is after Y splitter going to the 3.5 mm jack, so all you have to do is to cut xb90ex cable above the splitter and solder +and- to a female mmcx connector for each earphone and then connect to them whatever cable you have, with any type of jack.
If you're looking for the most subbass and not shrilling highs, you need true 6n or 7n high purity copper cables without any sort of silver or cable hybrids. The true balanced 7n high purity copper(9.999999) is very expensive so I went with 6n.
The mmcx connectors are very cheap on aliexpress, the best is to buy the females and males from the same store, then they will fit well.
That's why many bassheads have certain amplifiers with a separate dedicated bass knob. When you turn the knob on, it starts feeding with power only the low frequencies without messing around with others. Equalizers are not as accurate and effective.
If you like me and you don't like to carry many devises with you try not to rise up the eq freq. instead cut them down, its way more effective, but doing it will requires more amp. power in order to get to the same loudness because when you push freq down you have a lower volume altogether, too.
It's hard to say how much power is too much. I think xb90ex can easily handle up to 300mw with eq cut down, may be even more than that. It's yet to be determined.