Traveller
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- Jan 8, 2004
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Here are the measurements.
The bass control works very well.
Impedance is also very linear, so you can tweak the sound if you want with more impedance of amps' side.
I am a little confused by the impedance graph - my untrained eyes don't see it being "very linear" but perhaps the OP is referring to the LF range only?
But on to my main question; the "pot" JHA / Moonaudio installs in their cables to give a LF attenuation of 10dB (for the Angie) ; how does it affect the IEM's overall impedance?
Specs for many of the Sirens incl. the Angies (II) for example show 17 ohms. Is this with the pot fully open (no attenuation), or is there absolutely no difference? I ask because Etymotic sells a BA IEM (ER-4PT, 27 ohms) that has a "boosted" LF range which can be attenuated by adding a plug with a resistor in it (equivalent to ER-4S, 100 ohms).
Thanks in advance for your feedback