You don’t need to spend hundreds of dollars to get an awesome pair of IEMs. The HIDIZS MP145 is proof that you can get planar performance, unique tuning, and high-quality build without pushing into boutique or luxury territory. Over the past month, I’ve been running these through my regular listening routine, pairing them with multiple DACs and sources, and comparing them with other planar IEMs I own.

What I’ve found is that the MP145 has a personality that sets it apart from most planars on the market. Instead of going for the ultra-lean, hyper-analytical presentation that many planar fans expect, this set offers a thicker, more musical sound that still delivers plenty of detail. It’s the kind of tuning that lets you sit back and enjoy your favorite albums, even if they aren’t perfectly recorded. That said, comfort is not a highlight for me. These shells run larger than most IEMs, and I found them a bit tiring to wear for long sessions. I wish ergonomics had been given more attention because the sound quality is strong enough to deserve a universally comfortable fit. Buy them on Amazon!

Pros

• Smooth, inviting tuning with rich mids and bass
• Non-fatiguing yet detailed treble
• Great cable and ear tips included
• Distinctive, solid build

Cons

• Large shells may be uncomfortable for smaller ears (and most normal size ears)
• Some distortion at extreme volumes

Design & Build Quality

The MP145 makes an impression before you even plug it in. The whale-tail faceplate and “rorqual pleats” shell design give it a striking, almost art-piece quality, and the all-metal construction feels premium in hand. The build is solid, with precise seams and a well-machined finish that reflects HIDIZS’ attention to detail. Buy them on Amazon!

While the look and feel are high-end, the size will be a dealbreaker for some. These are large shells for an IEM, and if you have smaller ears, you may find that they sit awkwardly or create pressure over time. In my case, comfort kind of improved a bit with use, but I still wouldn’t call them all-day wearers. More like wear them for 20min at a time.

The included silicone tips are actually good, which is rare for stock accessories. I stuck with the medium “balanced” tips, which gave me a solid seal and helped the bass response. The cable is a 6N silver-plated single-crystal copper design that feels supple, resists tangling, and is available in both 3.5mm single-ended and 4.4mm balanced terminations. Unfortunately, the included storage pouch feels like an afterthought—serviceable, but I quickly replaced it with a puck-style case from Linsoul for better protection.

Bass

The bass is where the MP145 really sets itself apart from other planar IEMs I own. Instead of aiming for a super-clean, ultra-fast low end, it goes for a thicker, more textured presentation. I would describe it as a “milkshake” quality—full, smooth, and just a bit sweet.

This character comes from a touch of harmonic bloom in the mid and upper bass, which adds body and warmth to the sound. The trade-off is that it sacrifices a bit of sub-bass texture and ultimate detail compared to more analytical sets. It’s not a basshead set by any means, but the bass is full enough to anchor the music without overwhelming the rest of the spectrum.

Mids

The midrange is more forward than I typically expect from planar IEMs. Vocals are placed closer to the listener, and mid-focused instruments like guitars, pianos, and brass come through with a smooth, rounded quality. This works beautifully for genres like jazz, folk, classic rock, and acoustic singer-songwriter tracks.

The forward mids, combined with the thicker bass, make for a sound signature that’s both engaging and easy on the ears. It’s not tuned to be ultra-revealing in this range, but that actually helps with poorly recorded or harsh-sounding material. If you like a presentation where vocals feel present without being shouty, the MP145 gets it right. Buy them on Amazon!

Highs

Treble is handled with care here. The MP145 has enough top-end extension to reveal fine details, but it stops well short of sounding sharp or fatiguing. The tone leans toward crystalline rather than metallic, which gives cymbals, strings, and upper harmonics a natural shimmer instead of a harsh bite.

I especially enjoyed listening to jazz percussion—ride cymbals, hi-hats, and brushed snare all sounded realistic, with a pleasing decay that kept them from feeling too fast or cut off. Treble lovers might wish for a little more bite, but for my tastes, this balance kept me listening for long sessions without fatigue.

Soundstage & Imaging

The soundstage here is wider than average for an IEM but not particularly deep. It’s like being in a mid-sized club, standing just in front of the band. Instrument separation is clear, with each element given its own space without feeling artificially pushed apart.

Imaging is strong, especially in lateral placement, so it’s easy to pinpoint where instruments are coming from in the stereo field. What the MP145 lacks in front-to-back layering, it makes up for in a natural, cohesive presentation.

Accessories & Usability

• The stock balanced cable is excellent—soft, low-memory, and easy to handle.
• The included tips are worth using, especially the medium balanced set for a secure fit.
• The included pouch is functional but basic; an aftermarket case is a worthwhile upgrade.
• Hi-Res certification is nice to have, though it doesn’t change the listening experience.

Comparisons & Notes

Compared to my other planar IEMs, the MP145 is less clinical and more musical. It’s not as micro-detailed as my most resolving set, but it’s much more forgiving of compressed or poorly mixed tracks. Swapping to a Tripowin Zonie 16-core silver-plated cable gave me a subtle bump in clarity for very little cost.

One limitation worth noting is that during very loud musical passages, I occasionally heard minor distortion. It was rare, but present enough that I think it’s worth mentioning.

Final Thoughts

The HIDIZS MP145 is a bit of a curveball in the planar IEM world. Instead of chasing ultimate resolution and speed, it offers a warmer, fuller, and more relaxed sound that’s ideal for listeners who value musicality over microscopic detail. It’s the type of tuning that works with a wide range of genres, and it has enough character to stand out in a crowded market.

However, comfort is the Achilles’ heel here. The shells are big, and if you have smaller ears, they might be a challenge to wear for extended periods. For me, they became more tolerable with time, but they never disappeared in my ears the way some of my smaller, more ergonomic IEMs do. That’s a shame, because the sound is engaging enough that I’d happily listen for hours if the fit allowed it.

At full retail, the MP145 is a solid buy. On sale, it becomes a bit of a no-brainer for anyone curious about planar IEMs but hesitant to spend top-tier prices. It won’t replace your most technically impressive set, but it just might become your go-to for relaxed, enjoyable listening—especially when you want to stop analyzing music and start enjoying it again.

Verdict:
A warm, musical planar IEM with a unique personality and great everyday usability—if it fits your ears, it’s a keeper. Buy them on Amazon!