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UM Multiverse Mentor
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I shall not write the detail review for MM here. There are 2 review from @twister6 , @Visceral in headfi which is pretty close to what I heard from MM.
Just want to shout out to Andrew a big Thank you for the excellence customer service and accomodate to my request. Will definitely patronise/deal again if I have any upcoming item in my wishlist (:
Comfort/build quality/cable: The MM is extremely comfortable for my medium sized ear canal, the fit is very secure, especially with the included AZLA tips. The passive noise isolation is also great. I find myself using iems as an earplugs in loud environments quite often and these work nicely for that.
The build quality is outstanding, the shells feel very premium and look absolutely stunning in person, probably my favorite looking iem to date.
The cable doesn't seem to be microphonic to me. It isn't light but not heavy either, the weight is just right. Very comfortable for hours and it does feel extremely premium, just like every other top of the line PW AUDIO cable.
The sound: Just like the Mason FS, the vocals and string instruments presentation on there are on another level, way above everybody else.
I've never heard an acoustic guitar and violin sound so authentic in any IEM. It actually sounds like you are playing the thing without the vibrations of it against your body. The vocals sound like the person is singing detectly to your ears and you can feel it in a way. I've never had so much fun with any headphones in my life, let alone an iem.
The tonality on MM is unmatched. I often do prefer there over my Genelec studio monitors for pure musical joy that UM bone conduction gives me and that is saying something. Even amazing sounding speakers can sound somewhat lifeless after these.
Overall the MM are extremely nuteral, dynamic, crisp, enjoyable, fun and everything in between.
The low end is extremely well controlled, very balanced and as punchy as you want it to be even for metal/djent/thall type of genre.
The soundstage is stupid wide. Wider than Mason FS, Mext and my trusty U12t's. Imaging is spectacular, I would say The best on any iem that I've heard in recent years.
The course: depending on the source, you could or couldn't feel/hear the UM bone conduction properly. With some daps/amps these become just a great sounding IEMs, with some it completely transforms and makes you feel and hear the music like never before. I do find them to pair best with the Cayin products (N8 II, C9 amp, HA-300 MK2, RU6 etc) and LP6. The better the source, the better they will sound. I personally run them through my Cayin C9 amp with an external dac and I'm very pleased with the sound.
Negatives: There is one negative for me personally.
I do find them unusable for tracking, It just doesn't feel right. I often do prefer to wear an iems when I'm tracking and practicing guitar so that was a little bit of bummer, but I already knew what I'm singing for after purchasing my very first UM product.
Conclusion: If you can afford these, please do yourself a favor and buy a set, I'm extremely happy with mine after 9 months of having it and can't recommend them enough.
Otherwise please do consider getting the MEXT, both are fantastic, the MM just gives you way more and has a better control over all of the frequency spectrum.
Amazing technicalities
Very coherent tuning without flaws
Best BCD implementation I ever heared
Superb bass quality
Big and holographic soundstage
Gripping representation
Great design and build quality
The UM Multiverse Mentors are simply the best IEM’s I’ve ever owned. I couldn’t be happier about the purchase. I was stunned about what a major step up in performance these were from my Empire Ear Odin’s. Thank you to Andrew for all his help and MusicTeck for getting this shipped out so quickly. Highly recommended.
Multiverse Mentor is the best IEM out there.
When you put it on your ear, it starts live and becomes a 3D holographic space.
It is also awesome. It brings everything to your ears, from the expressiveness of the instruments to the artist's breath.
Multiverse Mentor is the only IEM that can be enjoyed on a vast sound stage without getting bored!
Unique Melody has created an extraordinary IEM.
Perfect sound is exactly what it sounds like.
Thanks to music teck for providing this.
And thank you Andrew for providing this.
These are so good I’m considering selling my collection of iems. They are so impressive!
True to its name, Reference Silver provides a balanced, reference-type silver sound without sounding dry or strident. I found it to tighten the bass and add punchiness, and extend beautifully into the highs, providing a pleasant airiness. Vocals are pushed a touch forward and the staging is very wide and deep. Reference Silver is beautifully constructed with robust titanium hardware. Highly recommended!
I've had a pair of JHAudio JH13V2PRO for about 6 years now and it was time for an upgrade. Technically has really progressed in the IEM space in that time. The Mest MKII is better in literally every way. Thankfully UM still offers a custom shell service. I'll definitely have this done due to my tiny ears.
Continuing my Cayin journey has been a lot of fun. Having really enjoyed the C9 and N7 combo, I decided to try this tube amp for desktop listening into my Meze Empyrean. I can line out from my N7 or use the N7 as a transport to my Emm labs dac. Both sound great.
The HA-6a had been nothing short of a musical revelation. The mid range and voices are haunting phantoms, the layering and soundstage is deep and musical, and when called upon the music can slam. This has converted me to tubes as they can produce a lifelike sound that is beautiful and emotional.
I also really appreciate the tube configuration and ease of tube rolling. I’ve already tried the Mullard reissue 12au7 with the GL KT88 and the sound is fabulous. This is the tip of the ice berg in terms of customizing the sound.
Super high quality build and Musicteck’s service is once again fantastic.
I'm very satisfied with this item. The sound is exactly the same as described. Amazing energy makes a dynamics and sound stage.
It is also not muddy and masked. Wonderful experience.