Tripowin Rhombus Review

Tripowin Rhombus Review

Recently, I have been reviewing a couple of new IEMs from Tripowin. Tripowin has made a lot of good budget IEMs that you can never go wrong with for the price. They always have something to offer in terms of design and sound. The Rhombus is the latest IEM that I have been able to get my hands on from the brand, and I’m excited to try them out. They go for $79, pitting it up against other popular budget IEMs like the Moondrop Aria. Does the Rhombus meet those standards?

Tripowin items

What You Get

  • Rhombus IEMs
  • 2-pin 3.5mm cable
  • Drawstring pouch
  • 3 pairs of black tips
  • 3 pairs of clear tips

Tripowin Single

Look and Feel

This CNC shell is made from aerospace-grade aluminum. With its multi-polygon aesthetic, the Rhombus packs a futuristic style. It is like a less glossy version of the Obisidian from Ikko that is also a bit bigger. The Rhombus fits just as well too. It’s shaped to sit in your concha naturally, providing lightness and good support so you never have to readjust them as often.

Tripowin cable


You don’t see many hybrid systems at $79, so the Rhombus is unique in that way. It combines a 10mm dynamic driver with a Knowles 33518 balanced armature. The dynamic driver supports an LCP diaphragm for a cleaner distribution of the signal. With the balanced armature, it is almost like you’re getting an ultra-treble tweeter, hoping to deliver more detail.

Tripowin Pair


Tripowin can produce a well-organized soundstage even for a budget IEM. The Rhombus is a more base-level experience than what I might have hoped for, but the presentation is still good. It can deliver a standard linear stereo image well enough, with average layering that maintains spaciousness. Sound elements don’t blend into each other too much, but there is little space between the performances themselves. They don’t appear the most eloquent when displayed throughout the mix, but instruments and vocals still maintain basic localization.

Low EndĀ 

There is definitely a lot of life in the bass here. It has smooth grooves mostly residing in its mid-bass. The sub-bass also shows up too, bringing some significant lift to the tone and giving it some body. While the response is surface-level, it establishes a good foundation for a more lively timbre. It is not the most detailed or expressive bass, but the response is easy to engage with.


Not much sticks out in the mids aside from snappiness from the upper mids. The low mids can appear cloudy at times, relegating what should be some impactful instrumentation to the background of the mix. Some of the fundamental mids actually have some energy, even strong clarity at times. Electric guitar solos bring small details but it really makes a difference when it comes to the tone as a whole. Vocals aren’t as forward, but they have some good height and sleekness to them that provide a nice texture.


The treble offers some biting detail, and it helps make the music pop. Its response is still mainly linear, never heightening the tone past some sibilant features. Sound elements don’t necessarily shimmer, and there is a hard limit on how far the highs can extend. However, like the upper mids, there is a good snap to the frequency content, and it makes the sound signature more fulfilling.


Even though Tripowin knows how to make a reliable and nice-sounding budget IEM, the Rhombus is going to be more of your standard experience. While nothing about it really pops out to me, it is also completely inoffensive in its performance. The bass is there, and the highs add some good flavor, but its lack of punch and linear stereo field hold it back up against other models in this price range. With its flaws, you can’t go wrong with the Rhombus with its price, but the improvements are out there.

ProsĀ  Cons
  • Smooth bass
  • Energetic highs
  • Nice design
  • Good fit
  • Price
  • Linear soundstage
  • Cloudy mids

The Tripowin Rhombus is available at Linsoul.

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Alex S. is a sound designer and voice-over artist who has worked in film, commercials, and podcasts. He loves horror movies and emo music.