One of the surprises of this HighEnd edition, the last one to take place in Munich, was the Letshuoer stand. They had a lot of new stuff, like the all BA’s Mystic 8, the brand new Serenade

in a beautiful stabilised wood shell and the most striking of all a new prototype of a 2DD+4BA+4EST tribrid that has a funny story. When the Audiogeek community caught wind of the Lethsuoer's UK rep, Jon, high bass shelf EJ07M, everybody instantly wanted one. Jon worked his magic and there will be a special release ofbthis IEM. But this is where it gets better; while loosely based on their previous EJ07M, this new model adds a second DD and 2 more BA’s, raising the drivers count to 10.

The bass response is one of the standout features. It strikes the right balance between impact and control, offering a deep, resonant low end that with the proper amplification can just about make your teeth rattle. Sub-bass frequencies extend quite low, giving a nice rumble, perfect for genres such as electronic, hip-hop, and rap. More importantly, the bass is quite fast, keeping up with double bass drums in technical death metal and the likes. The mid-bass is textured and articulated, making it a good choice for all sorts of metal/rock related genres.
While the first demand of the Audiogeeks was bass, the second condition was mids that provide enough body and energy. Vocals, both male and female, are rendered with remarkable naturalness, without that powerful bass bleeding into the mids. The clarity is striking. The mids are neither recessed nor overly forward, striking a good balance. Distorted guitars have enough grit while acoustic ones sound smooth and natural.

The treble response is crisp and airy, with excellent detail retrieval. The 4 ESTs provide the typical slightly shimmery delivery, backed by enough body provided, most likely by the BA’s. I haven’t noticed any sibilance, even with the worst offenders, like the Seventh Son of the Seventh Son.
The soundstage is large, sort of ovoidal, and provides that ‘wall of sound’ I’m always looking for.
I was lucky enough to test it at home for a few days and I'm thoroughly impressed. The engineering unit was very responsive to tips and cable rolling, and I have all the reasons to believe that the end product will be the same. They are quite power hungry, benefiting greatly from an additional amplifier. I have tried them with Tsuranagi and I swear I could feel the bass pounding in my chest. As for cables, my favourite was Nightcraft Nocturne, a very neutral cable that enlarged the stage even further and brought some even more clarity without altering the sound signature.
The good news don’t stop here, they aim to provide the end product in titanium shells with a stabilised wood faceplate, so the best of two worlds. I am a big sucker for titanium shells so I ordered one on the spot and I can’t wait to get it.
So look out for this one, Letshuoer have already proven themselves before, with Cadenza 12, Cadenza 4 and many other sets. It's about time they get some recognition for they efforts.