Canpur CP752B Subjective Review: What a True Ultra-Flagship Should Be

November 24, 2025

The more expensive something is, the more it should tend toward perfection. It’s a simple logic, yet it’s challenged in many fields. Take smartphones, for example—compared to $300-$500 gaming phones, the $700-$1,000 camera flagships you buy often have slower charging, smaller batteries, less powerful performance, and even brick-like ergonomics due to massive camera modules. Without a genuine need for heavy photography, I’d never recommend anyone splurge on the "ultra-premium" model. My point is: not being able to afford it is my problem, but so-called flagships that sacrifice one feature for another are just marketing gimmicks. Only by addressing these flaws can high-end consumers truly feel they’re getting their money’s worth. And that’s exactly how I felt after thoroughly testing the Canpur CP752B.

 

"Ultra-flagship headphones"—a term that should embody "versatility, correctness, and exceptional sound"—has, in recent years, become synonymous with niche, unbalanced tuning amid a flood of new releases. Some are thin, cold, and overly analytical, using extreme technicality at the expense of musicality to test audiophiles’ sensitive ears; others are warm, rich, and overly boomy, bombarding listeners with overwhelming bass. Admittedly, these headphones—usually priced above $2,000—offer impressive sound density, easily outperforming $1,000 models. But when you’re paying top dollar, having to compromise is disappointing and makes one worry about the industry’s future.

That was until I heard the Canpur CP752B, officially priced at $5599 USD. I knew then that the true ultra-flagship had arrived.

 Unboxing: Luxury Meets Ritual 

The CP752B’s packaging is impressively large. The inner box under the sleeve feels soft and luxurious, exuding a high-end vibe that delivers great emotional value before even opening it.

The interior design, resembling a museum exhibit, is the most ritualistic I’ve ever seen: you first unscrew the four corner screws by hand, remove the acrylic cover, and then retrieve the contents—offering maximum protection. The headphones sit in silicone ear-shaped recesses and need a slight push and twist to remove, similar to custom-molded IEMs.

The accessories include a newly crafted white leather carrying case, a brush, a cleaning cloth, and two sets of silicone ear tips (S/M/L each). The included cable is a custom flagship model co-developed with the popular cable brand ELETECH, featuring 24 AWG high-purity conductors, a gold-silver-copper alloy blend, precision stranding with an optimized geometric structure, and custom splitters and pins. This soft gray cable perfectly embodies the phrase "elegance never goes out of style."

 Some audiophiles have criticized the CP752B’s appearance online. Beyond differing aesthetic preferences, I think the main issue is that the CP622B’s black is a "safe choice" for most consumers, while the CP752B’s "cement gray" is less common in high-end products, so people haven’t fully adapted to it. In terms of fit, despite the CP752B’s thicker housing compared to the CP622B, the newly optimized ergonomics significantly improve stability and comfort. The medical-grade resin shell also avoids the impracticality of metal casings that look good but feel uncomfortable.

Specifications: A Flagship-Grade Driver Configuration 

Following the CP622B’s naming logic, the CP752B should technically be called the "CP7412B"—it packs a luxurious setup of 7 balanced armature (BA) drivers, 4 electrostatic drivers, 1 planar magnetic driver, and 2 bone conduction drivers. However, Canpur kept the three-digit naming for simplicity. Notably, the CP752B is the first to adopt Sonion’s groundbreaking new G90 mid-high frequency BA driver, which is the key contributor to its significant sound upgrade.

Sound Performance: Reference-Grade Perfection 

Overall, the CP752B is a reference-class ultra-flagship focused on true sound reproduction, meticulous detail, and a solid, calm, and transparent signature. Its performance lives up to all expectations of a top-tier headphone: abundant, dense sound that feels almost immersive; a grand soundstage with flawless width and depth; and effortless, lifelike resolution that reveals every nuance. Despite its power, the CP752B is surprisingly easy to drive—with an impedance of just 7.6Ω and sensitivity of 102.7dB SPL, it’s one of the few "endgame" headphones that performs beautifully on low to medium gain. However, it does demand good source control.

What truly impresses me about the CP752B is its poised, refined elegance. True to its 5-tube, 7-way crossover design, the sound is rich in tone and layered, with every detail arranged in perfect order—like well-disciplined soldiers. I’ve heard many headphones with balanced frequency response, but few integrate each range as seamlessly as the CP752B. This level of cohesion requires extensive R&D experience and deep musical understanding, something new brands can rarely achieve.

• **Low Frequencies**: Moderate to slightly elevated quantity, tuned in Canpur’s signature style—emphasizing power and resonance for a rich, atmospheric presentation. The reverb is natural and tasteful, the bass hits hard without overwhelming the mix, and the texture is smooth without metallic harshness. Once you get used to Canpur’s low end, most other headphones will feel like a downgrade.
• - **Mid Frequencies**: Vocals are positioned at a natural distance with clear, detailed imaging and a slightly leaner thickness. With subtle, restrained coloration and nuanced micro-dynamics, the vocals convey sincere emotion and engaging musicality—performing equally well with male and female singers, setting a benchmark for lush, refined midrange.
• - **High Frequencies**: Excellent brightness with slightly thicker lines and a smooth character, delivering abundant details and a gorgeous, airy transparency.

Comparison with the CP622B: Complementary, Not Superior

 I’m sure many interested in the CP752B already own the CP622B. But I’ll be blunt: if you’re expecting a "straight upgrade" with the same tuning as the CP622B, you’ll likely be disappointed—their sound signatures are vastly different (the CP622B Ti might be a better choice if you prefer the original tuning).

To paraphrase my wife’s layman’s take: "Both sound premium and expensive, but the CP622B is more approachable, while the CP752B captivates with its sophisticated, refined tone."

As an audiophile, I can confirm the CP752B’s technical performance is at least 1-2 levels higher than the CP622B—this is where the nearly $1,400 price difference is most evident. Listening to the CP622B after the CP752B feels like downgrading from 8K to 4K resolution, with softer, blurrier imaging. In terms of energy distribution, the CP622B focuses more on the mid-low end for a relaxed, fatigue-free listen, with a restrained high end. The CP752B, while retaining excellent bass, offers brighter mid-high frequencies with smoother extension and a cleaner, more truthful soundstage. The warm low-end softens its overall crispness, making it more balanced and versatile. They’re not replacements for each other—they complement each other. For wealthy audiophiles, owning both is the ideal scenario.

 Final Thoughts: The Ultimate Endgame IEM

In my book, the Canpur CP752B is the closest thing to a "flawless" ultra-flagship I’ve ever heard: comfortable to wear, accurately tuned, easy to drive, and genre-agnostic. As one audiophile put it: "In an era of overhyped ultra-flagships, Canpur is one of the few brands you can blindly trust."

The only caveat: unlike the CP622B, which pairs well with almost any source, the CP752B is more sensitive to front-end tonality. While it shines with high power, avoid cranking up the gain excessively—this can lead to harsh, fatiguing sound. For warmer, more musical playback, I recommend pairing it with sources like the Hiby RS8, Cayin N7+, or Sony WM1AM2 (Gold Walkman II). For ultimate detail retrieval, a spacious soundstage, and a clear, elegant tone, the Cayin C9ii is an ideal match—unlocking even more of the CP752B’s potential. No matter how you pair it, its top-tier dynamic range and powerful impact will leave a lasting impression.

In summary: The Canpur CP752B is the ultimate endgame headphone—worth every penny for those seeking perfection.

 

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