The A&O Omega is a beautiful piece of art. The design, the premium drivers, the cable…all top notch. In today’s day and age, an IEM this special under $3k is significant. Before I get too far into this, it is best to throw a neutral/natural source at the Omega. Something overly warm will leave you missing the higher-end technicalities that it can produce. While it doesn’t HAVE to have a lot of power, something that gives plenty of headroom will benefit the Omega, and your listening enjoyment. Basically, just remember that synergy is king…doesn’t always have to be the most expensive source kit to get the most out of a higher end IEM.
The tonality is full, with a warm tilt. I hear no edginess or sibilance regardless of where the switches are. The bass is just spectacular. If you, like me, had a romantic inclination towards something like the Legend X (or Evo), this is a wonderful upgrade from that general category of sound signature. It evokes the same emotion to me as the X did back in the day. I’ve had the chance to trade with friends a couple of times and just can’t imagine enjoying anything more without breaking my bank with the Fulgrim. Don’t hesitate to give the Omega a try.
When the jack stopped working on my wm1a I wanted something small but still with natural musical timbre. I had the W4, which was very resolving and great in its own way. I decided to try the ru7. I think it's great and has the kind of sound I was looking for. It really is a kind of synthesis in sound between the w4 and wm1a.
The Canpur CP752B is nothing short of a revelation in the "summit-fi" landscape, effectively redefining what a flagship multiverse-driver IEM can do. The first thing that grabs you is the sheer scale of the soundstage—it is genuinely holographic. Where other IEMs might give you width, the CP752B uses its dual bone conduction drivers to create a 3D bubble that feels less like listening to earphones and more like sitting in a properly treated listening room. The separation is surgical without being sterile; you can pick out every layer of a complex track, yet the drivers—despite being a mix of BA, EST, Planar, and BC—blend with a coherence that is almost impossible to find in other "quadbrid" sets.
Tonally, these strike a brilliant balance that many are calling a refined "W-shape," bringing the best of all worlds. The bass is authoritative and massive, providing that visceral, textured rumble you usually only get from dynamic drivers, yet it retains the lightning-fast speed of balanced armatures. It hits with a weight that provides a solid foundation for the music without bleeding into the mids. Vocals are pushed forward just enough to be intimate and engaging, avoiding that distant "scooped" feeling, while the treble offers that elusive "sparkle without pain"—delivering immense air and micro-detail that extends forever without ever becoming sharp or fatiguing.
Finally, the build and package cement its status as an endgame monitor. The medical-grade resin shells are surprisingly comfortable for the driver count, and the collaboration with Eletech for the stock cable shows Canpur didn’t cut any corners. It is rare to find an IEM that manages to be both a technical monster and musically "fun" at the same time, but the CP752B pulls it off effortlessly. If you are looking for an IEM that competes with (and often wallops) sets costing significantly more, this is absolutely the one to beat.
The Epitome of the "Sophisticated Basshead" Monitor
Sound Signature Overview The Alpha & Omega Fulgrim can be best described as a "sophisticated basshead" audiophile monitor. It offers a masterclass in dynamic control, distinguishing itself by knowing exactly when to exhibit restraint and when to unleash power. Unlike typical bass-heavy IEMs that apply a blanket boost across the spectrum, the Fulgrim respects the mix; if a track demands neutrality, the low end remains disciplined. However, when the composition calls for it, the bass response is authoritative, visceral, and commanding.
Frequency Response Breakdown
Bass (The Foundation): With the stock Aura cable, the tuning exhibits a distinct bias toward the sub-bass region. The quality here is exceptional—highly textured, detailed, and deeply impactful. Crucially, despite the sheer quantity of low-end energy available, the tuning is meticulous; the bass creates a solid floor without ever bleeding into or muddying the lower mid-range.
Mid-Range (The Vocal Presence): Because of the clean separation from the bass, the mids are left uncolored and pristine. Vocals, both male and female, are rendered with clarity and high-resolution detail, ensuring the emotional core of the music is never lost behind the low-end drive.
Treble (The Resolution): The top end is characterized by excellent extension and a palpable sense of "air." Utilizing a configuration of 6 Electrostatic (EST) drivers, the Fulgrim achieves a transient response that is both resolving and authoritative. This technical capability ensures that no matter how thunderous the bass becomes, the treble remains distinct, piercing through the mix to reveal micro-details and atmospheric cues.
Technical Performance & Separation One of the Fulgrim’s standout technical achievements is its frequency separation. The three primary zones—Bass, Mids, and Treble—operate in distinct layers. There is no incoherent overlap or masking; the listener receives a holographic presentation where powerful lows and sparkling highs coexist without competing for acoustic space.
Synergy & Cable Pairing While the stock configuration provides a thrilling ride, those with a sensitivity to high-frequency energy may find the treble energetic. For these listeners, I strongly recommend pairing the Fulgrim with the Astral Acoustics "Luna" upgrade cable. This pairing introduces a subtle warmth that smooths out the sharper edges of the treble response while maintaining the IEM's inherent resolving capabilities, offering a more organic listen without sacrificing detail.
Verdict The Alpha & Omega Fulgrim is a rare beast: a monitor capable of satisfying the cravings of a basshead while maintaining the technical prowess required by a critical listener. Its ability to handle 99% of music genres with agility makes it a versatile endgame solution for those who want power without compromising on clarity.
The rumble in the bass when the bone conduction works properly and the holographic soundstage... I got spooked when I heard a bird chirping behind me and turned back only to find out it was from the song.
Pros:
Truly immersive, spherical soundstage that wraps around you
Exceptionally controlled, addictive bass
Two genuinely useful tuning switches
Can listen for hours without fatigue or discomfort
Outstanding technical performance (imaging, staging, resolution)
Cons:
Bass quantity won't satisfy those seeking maximum rumble
Sources
iBasso D17 (OS/L, AMP/L, Line Out, Volume 95)
Luxury & Precision EA4 (amplifier)
Summary
For context on where I'm coming from: my main priorities are soundstage, imaging, and layered bass—not boosted, just well-textured and controlled. I'm not chasing maximum slam or the most forward vocals. I want to feel like I'm inside the music.
The Pentara checked every box. It's replaced my FiR Audio Radon 6 as my daily driver and effectively retired both my Symphonium Crimson and Unique Melody Asahi. I just don't reach for them anymore.
Sound Signature & Comparisons
vs. FiR Audio Radon 6 (Previous Daily Driver)
The RN6 was my daily for a reason—that Kinetic Bass hits deep, and the soundstage is genuinely wide. But I always felt like the staging was a bit egg-shaped. Plenty of width, not as much depth or height.
The Pentara fixes this. It's the first IEM where I feel like the music actually surrounds me rather than just stretching left to right. The bass doesn't slam as hard as the RN6's Kinetic Bass, but honestly? I don't miss it. The Pentara's low end is so well-controlled and textured that it's become addictive in its own way. Throw on Yosi Horikawa's Fluid and you'll hear what I mean—there's real nuance down there.
vs. Symphonium Audio Crimson
Look, the Crimson is a fantastic value. Fun signature, punches way above its price. But I could never wear it for more than an hour or two before needing a break—partly fatigue, partly comfort.
With the Pentara, that problem doesn't exist. I can keep these in indefinitely. And beyond just comfort, the technical gap is real. Staging, imaging, overall presentation—it's a different league. I haven't touched the Crimson since getting the Pentara.
vs. Unique Melody Asahi
This one's straightforward. I only ever used the Asahi when I wanted something more mid-focused. The Pentara's Switch 1 gives me basically the same thing, so the Asahi became redundant overnight.
I keep the switch set to On most of the time for the extra bass and dynamics. When I'm in the mood for acapella or vocal-heavy tracks, I flip to Switch 1. Works perfectly. The Asahi now belongs to a friend.
Verdict
The Pentara turned out to be exactly what I wanted: the immersive staging the RN6 was missing, the technical chops the Crimson couldn't deliver, and enough versatility to make the Asahi unnecessary. If your priorities line up with mine—soundstage, imaging, textured bass—this one's worth a serious listen.
My first venture into high-quality headphones....in search of an "intimate sound stage" ....Research and assessment of reviews paid off. These place you center-stage...I'm in the band !
Satisfied customer !
First of all, the transaction and communication with Musicteck were absolutely top-notch. Constant updates, clear explanations, real help, an irresistible offer, and shipping to Europe in under five days with no suprise extra charges.
Second: the earphone. I own several full-size headphones across different price ranges, and plenty of IEMs. I even have the MEST MKII second-hand.
This one is special. It has a more mature tuning than its predecessors. It won’t give you an immediate “WOW,” but if you have good music with you, this earphone becomes wonderful when paired with a solid DAP.
Luckily, I have the DX340 with AMP16, and I’m using the Effect Audio Eros II as the cable partner.
It’s correctly incorrect—maybe sitting right in the middle thanks to that soundstage—slightly bright, holographic, and with flawless timbre.
To sum it up: the sound is super-holographic, exciting, and genuinely unique. This also means it won’t be a safe bet for everyone, so I’d recommend borrowing or demoing it before you decide.
High quality like everything from pw audio. Works great and lets me use my 2 pin cables with my Annihilator 2023.
This is an amazing IEM. The base is very powerful and clean. The treble is very detailed. The mids are just slightly laid-back, but very nice. I have been listening to music for more than 30 years and I’m hearing details and nuances in familiar songs that I never heard before. All at a great price, thank you guys for everything.
I'm from Kansas, never heard of this store and was pretty scared to drop 700$ here.
So glad I did, super fast processing and shipping they got my IEMs to me super quick and in perfect shape. <3
To put it simply, I am IN LOVE with this iem. I have never called myself a bass head while I do enjoy bass, I have always concentrated more on a neutral or slightly above bass response. Rich and textured mids and extended treble (BA density with some air over extra airy is my preference) in the iems I have enjoyed most. Fei Wan comes to mind. I love that iem. I would re-buy it in an instant if I did not have to spend another 2k+ for a solid upgrade cable for it. But we are not talking about Fei Wan here. This is all about the King of Bass, The Fulgrim! It has converted me….into a bass head! My bass desires must have been buried deep within only awaiting the fury of the Fulgrim to unleash the beast of bass lust into my heart and soul.
The Fulgrim however, is more than just Bass. It is has clear and clean mids that are very linear with texture and definition and slightly forward giving Fulgrim a true W shape ( another preference point ). Treble that is extended and sparkling with a density that surprises me coming from EST’s. It is airy but not over done, more texture than air while not dull or blunted at all! Dimensionality is quite a surprise, many moments I have been startled with sounds popping out of the dark background unexpected and out of head. It is not hugely 3D, instead it has great layering giving immense depth of stage which keeps me engaged, another one of my preferences over a super wide and tall stage. I am a sucker for layering and separation. Fulgrim does not let me down. The stage width is not small by any margin but it is not a Traillii wide. Transients are quick and defined, not too sharp or too textured. Imaging is really good as well, not Mentor BCD type of imaging but much more natural. It has a live feeling to the sound. It will not sugar coat a recording. It is an energetic tuning, not for laid back listening imo. It reminds me a lot of my desktop speakers with more bass authority.
Going back to the bass, this is what everyone loves about the Fulgrim and it is a highlight, but I would not say it is what defines it. I would not put it in that box. The bass is phenomenal with body, depth, texture and dynamics. It punches, slams and rumbles with authority. The best part is that it’s defined, it stays in its lane, Never bleeding over to the other frequencies. To me this is quite a feat! I have never heard such bass with such resolution not only in the bass but across the FR. LX was my last bass head iem and I also loved that iem but it did have a veil and it did bleed into the mids and did not have the resolution of the Fulgrim, not even close.
I bought the Fulgrim blind but I have been doing this for 5+ years so I felt comfortable in that decision and I do not regret it. Is it worth it and should you buy it? that depends on what one is willing to spend and what you are looking for, its not the highest level of technicality/detail but I am not one to chase that dragon. After having APX SE which to me is one of the most resolving iems ever, it began to fatigue me with all the information, distracting me from the music and focusing only analyzing the sound. For me, that robbed me of the passion of music. I took a long break after that. Then bought a OG Phönix, the antithesis of the APX SE but still quite resolving. As much as I loved the thick note weight of the mids and density and sparkle of the treble, the BA bass started to bore me with its mid bass hump and slow decay lacking definition, so then I took another long break only having a modest single DD iem that I was gifted. That renewed my love for DD bass and DD timbre. So then comes Yu9 Que, Asteria and now Fulgrim with Ventura incoming once its launched here in the USA. A very long winded way of saying for me its worth the buy especially if you can get it used or “like new” from MT. I am thinking of writing a full review on it but I am awaiting some Eletech Stage tips to try out first. Personally, I have no issue with the design of the shell, I actually quite like it. Also I have no issue with the stock Aura cable. I know there is a new cable from Astral on the way called Luna that is supposed to really be great synergy with Fulgrim.
In short very happy with the purchase - sounds dynamic, wide, detailed yet balanced. Bass reaches really deep it "tickels" but it is not a lot in quantity.
I whish next version is a bit lighter at least 300g or less with premium built metals around it, otherwise it is perfect.
This might be the most impressive cable I’ve ever heard (and I’ve heard many of them). I agree with the comment that it’s like a warmer Shirogane, although I think it’s even more technically impressive than the Shiro. The soundstage is vast, perhaps the largest I’ve heard (but in a good way, not in a disjointed way), providing a speaker-like experience. The sub-bass is impactful and punchy. The detail and transparency are of course top tier. It doesn’t have the over the top bass of the BA Valhalla, the warm mids of the PWA Orphy, or the air and sparkle of Eletech. But what it does have is supreme technical competence and a supremely balanced tuning across the spectrum, that I suspect would pair well with a broad range of IEMs, sources and genres. If I could only own one cable of this price range and caliber, this would likely be it.
This was a $1000 upgrade from the $700 SONY walkman and it is definitely an improvement. Stronger amplifier boost the signal to my home amp via the line out so I don’t have to have it turn the amp all the way up and get hot. The display (and player) is larger and the album art fills more of the screen, a nice design feature. Why not use all the real estate? The HiBY music app is also more useable and better designed. It also has twice the storage but it wasn’t really an issue since I had a 500GB SD card in the SONY anyway. This unit is massive — large and heavy. Not good for jogging, but I use it to power my home amp and car stereo anyway. It comes with a 65W rapid charger with a hefty USB cable with rapid data transfer. Overpriced, but what can you do? After only two years the SONY line out jack started getting loose and static during play despite being very careful with it. This HiBy seems even more solid, but it better last five years minimum for the price.
Beautiful, powerful, great sound, and great battery life.
The best cable I've yet tried with the APXSE.
The Maven II is a highly commendable investment, not only for its affordable price but also for its features. It boasts dynamic sound quality, featuring airy treble, well-balanced mids, textured bass, and a spacious soundstage. The earbuds are comfortable and fit perfectly, providing an enjoyable listening experience when paired with the right eartips. These titanium earbuds are sure to impress for a long time!
Mona Lisa is an iem that doesn't initially blow your mind, but as you listen to it more and more, grows into something that you can appreciate.
Off of my Hiby RS6, the bass is extremely deep and satisfying, but with good dynamics. It's definitely more subbass focused, which suits the EDM songs in my library much better. The midbass is still good though, textured very well and satisfying to listen to.
The mids are quite neutral sounding, with neither the upper nor lower mids taking precedence. Strings of both violin and guitar are rendered precisely, and voices sound natural.
Treble is a bit spicy for my taste, but isn't so bothersome that it makes it unlistenable. Cymbals are delicate but impactful, and decay is natural.
The unboxing and included accessories are top-notch. The Eletech Louvre cable is a beautiful copper cable, and while I don't particularly care for the sound cables provide, the ergonomics and quality of the cable itself leave nothing to be desired.
Between the comfort of the shell, the generally agreeable and well executed sound, and wonderful premium opening experience, Mona Lisa is definitely one of my favorite iems to date
When I say this is an exceptional total experience I mean it is a great listen, with impactful bass and details, a great unboxing experience, and a beautiful iem. “Red Carpet Experience” for under $1000.
Awesome addition to the E7 portfolio. Best so far for the ooey gooey r2r "ish" sound to my ears. Bass extension heard. Mids, vocals, female & male jazz are thicc (intentional spelling). Direct a/b to P6Pro 10th AE Silver. Using Chronicle w stock cable and Orpheus. If you like crisp and sharp, this one is probably not for you. Tube / r2r fan.... you GOTTA pick this one up!!
Ordered the UM JetBlack without a cable. Had my favorite cable maker make an OCC Silver cable for the JetBlack. It was terrible. Way too etched and hot sounding. Sent it back and ordered the Jet Link Custom. What a difference. The tonal balance of the JetBlack emerged with great detail and imaging. Iem cables do make a difference. Lesson learned.
The Monarch MK4 Inear has a very good,
balanced sound.
I prefer the Bass setting Neutral.
Clear purchase recommendation.
I’ve owned many high-end systems over the years — including full-range Magnepans driven by Pass Labs monoblocks — but the Meze Elite headphones, paired with my Bryston BDA-3 DAC and BHA-1 amplifier, deliver a level of realism and musicality that truly astonishes me.
They reproduce everything from the vast dynamic range of Mahler’s Resurrection Symphony to the delicate intimacy of Bill Evans at the Village Vanguard with absolute naturalness and ease. The soundstage feels open and three-dimensional, the tonality perfectly balanced, and the comfort unmatched for long listening sessions.
Build quality is superb — every detail exudes craftsmanship and refinement. With the Silver-Plated upgrade cable, the presentation gains just a touch more sparkle and air without ever becoming fatiguing.
In short, these headphones don’t just play music — they recreate the emotion and presence of a live performance. Truly a world-class product and worth every penny.