The iSine BT definitely has the EQ applied; if I remember correctly it is the simpler "gen 1" of the iSine Cipher EQ curve, not "gen 2" or later revisions.The BT adapter for the iSine was very dark, I don't know if Audeze actually applies and EQ to them using the adapter, but if they do, they really missed the mark with it. I know with the normal Lightning Cipher cable with the iSine there is an EQ applied and it's really good there. The Cipher BT for the iSine is a no go for me.
The BT adapter for the Euclid doesn't change tonality too much. Though that's in comparison to the UTWS3 that I've had them paired to since I got them. I really haven't used them wired in a long time. I feel like the Cipher BT cable for the Euclid give a bit more tightness/punch and impact to the bass while toning down the upper midrange a hair, but this is in comparison to the UTWS3 (though I didn't feel like that colored the Euclid much compared to wired through the Apple 3.5mm adapter). I feel like the Cipher BT that Audeze has for the Euclid is a very good pairing; it also helps keep it more portable compared to the UTWS3 I had before.
I guess I'm not as big a critic of the iSine BT cable's tuning. I mean, it's not ideal. But for convenience when I have to make a trip to the vet or doctor so need to hear my name called, or do some shopping, and want to have an IEM inserted in the ears but still hear everything around me when I turn off the music w/o removing the iem, it's perfectly 'serviceable' for me. I'd just much prefer the sizzle and sparkle the iSine is capable of still be there with it. And Bluetooth itself could be responsible for loss of some of that treble I wish was there, as that is where BT does a lot of its squelching to minimize wireless bandwidth.
My bigger critique of it is power i.e. absolute volume it is capable of ... if used listening to recordings that were produced with wide dynamic range maintained, or produced decades past before brick wall compression. In many cases the iSine BT cable just doesn't get loud enough for me to be entirely satisfied.
I was about to pull the trigger on the Euclid BT device but then realized I still had that as an unknown. And that would be make or break, as someone who had affected hearing and tends to need to listen louder than most. To help me decide, can you comment on maximum volume capability of the Euclid BT cable, vs. the iSine's. Do you need to turn the volume up or down or stays the same if you were to listen to a song using the iSine BT then change to the Euclid BT? ... this, assuming you still have the iSine and BT cable to compare them. Thanx if so.
Last edited: