As my loved IER-Z1R has one dead driver for a few months now, and Sony doesn’t service such item in France, I only keep the Sennheiser IE900 as my main IEM …
Though, I didn’t expect anything special compared to the Qudelix 5K, I just gave a try to the iFi Go Blu and this makes me believe that now after 6 months using the Sennheiser IE900, it should become my main IEM Combo (after I finish adapting this to all my uses).
So here … is my quite perfect combo to sleep :
→ a very flat Sennheiser Ie900 (almost as flat as my Xelento)
→ Sony IER-Z1R silicone tips, waiting for some small rubber O-ring to replace those (too narrow tubes of the Sony’s tips) with the larger but too short tubes and much softer rubber of the Beyerdynamic Xelento tips (actually, nice to use most of the time, but those are just falling down a bit too easily of my ears when I lay down on the side)
→ BT receiver iFi Go Blu (a quite nice replacement after more than one year using the Quedelix 5K) though it’s not totally background hiss free when music is at an ultra low volume level or on pause. But with a 9 hours battery life with IE 900 at a realistic volume level (5/6 hours with Qudelix) both with no DSP activated as I use Wavelet PEQ+DSP.
→ a magnetic DdHiFi C10B fixed with a ultra-thin double side tape to be able to clip the BT receiver on my shirt (like the Qudelix 5K)
→ a correct and comfortable (almost microphonics noise free) 50cm balanced 26AWG 152 Core Silver Plated cable with IE900 MMCX connectors an a 2.5mm plug. I will replace this cable with a 4.4mm to avoid the too bulky ddHifi DJ44 (2.5mm to 4.4mm adapter)… Unfortunately, I couldn’t find a less than 50 cm cable with specific IE900 MMCX connectors.
I won’t probably buy a new IER-Z1R now as, the gap between the Z1R and the IE900 is not really significant… I am more wondering, if a Vision Ears EXT with a more sophisticated tech involved, can be a little step up from the IER-Z1R and make a nice “couple” with the IE900 as the Senn will probably remain my most compact easy to use IEM (even when sleeping) with a very impressive sound quality (assuming some little PEQ in the mids are applied via Wavelet).