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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.
