Disclosure: I’d like to thank HiFiGo for sending me the PULA Unicrom for this review. All thoughts and opinions are my own, and HiFiGo had no say or input on the contents of this review.

PULA is not a brand that is really known to me. I’ve heard of them here and there, but have never been able to try their products. Finally, though, courtesy of HiFiGo, I have the PULA Unicrom in hand and can finally experience something from PULA Audio. This is the Unicrom, a single DD (Dynamic Driver) IEM with a stabilized maple wood faceplate encased in resin. The 10mm dynamic driver is coated with beryllium to enable speed and precision. The name, Unicrom, blends “Uni” (stands for one, representing purity and focus) and “Crom” (comes from the silent god in Conan the Barbarian, symbolizing strength, calm, and inner power) to essentially mean that this IEM’s focus is on its single driver implementation, and tuning done with great intention. So let’s get into it and see what the PULA Unicrom is all about.

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• PULA Unicrom IEM
• 1.25m Silver-Plated Copper cable with modular connection
• 3.5mm SE and 4.4mm Balanced adapters
• Set of S, M, L clear silicone eartips (extra medium tip included)
• Set of S, M, L blue silicone eartips
• Leather storage case
• Manual

The included cable is honestly very good for this price range. It’s dark brown and is very light and flexible. I really appreciate that it’s modular, so you have the option of using either the 3.5mm SE or 4.4mm balanced adapters, both of which are included.

The included eartips offer a nice variety and flexibility. The clear ones have a wider bore, and the blue ones have a slightly smaller bore.

The storage case is a little different, with a design closer to that of a cigarette box. It opens from the top and is held together with a magnet. Inside is fairly roomy, enough to keep the IEMs, eartips, cable adapters, and even a dongle DAC. The case is not pocketable at all, but it offers excellent protection when placed in a bag or luggage.

I have the blue variant of the PULA Unicrom, and it looks pretty stunning in my opinion. Through the faceplate, you can see the stabilized maple wood texture with a blue tinge to it. Using wood means the pattern will be slightly different and unique for every IEM. The resin has a smooth finish, and the while IEM shell feels smooth with a shiny finish. L and R markings are on each earbud in yellow, which adds a nice color accent to it.

The Unicrom is a very ergonomically designed IEM. It fits very tightly against the ear but is not a deep insertion IEM, as the nozzles are average in length and diameter. They feel incredibly light, which I think helps with comfort. It also has nicely placed ventilation, with one vent on the outside by the 2-pin connection, and another inside against the ear. This helps alleviate pressure differences, which means walking outside is an option, and it won’t feel like you have cotton in your ears. When walking, the IEMs are very stable and don’t move in your ear. They just feel….great, honestly.

Usually, when an IEM includes a 4.4mm balanced adapter, the manufacturer is hinting that this will mean more power is required. Not so with the PULA Unicrom. Switching between the 3.4mm and 4.4mm connections, I noticed no change in sound signature or performance, so the connection type is really there for your preference. I was able to drive the Unicrom with an Apple USB-C dongle DAC, so really anything will be just fine with it.

The PULA Unicrom has a V-shaped sound signature that is very resolving, technical, and generally forgiving. It actually sounds like you’re listening to a hybrid IEM with how well it performs on both the low end and the high end. It’s so comfortable and enjoyable to listen to that I put on Porcupine Tree’s Fear of a Blank Planet in my Shanling EC Zero T CD player and listened through the whole thing in one sitting. It performed very well, bringing out all the different layers of instruments and soundscapes used on the album.

I find the Unicrom works well with pretty much every genre, though it really excels at orchestral music, instrumentals, jazz (Dave Brubeck’s album Time Out really sounds great here), and most rock music.

Link: Harman IE 2019 Target, PULA Unicrom – Frequency Responses – Squiglink by HiFi Oasis

Bass

The Unicrom has what I would classify as a fun bass sound. The sub-bass has some rumble and quality when called for, but the mid-bass is the show here. It’s slightly boosted, but not to the point of being muddy or overshadowing the mix. It has decent punch and gives the low end some beautiful texture in Dire Straits bass lines.

Midrange

Due to the V-shaped nature of the sound signature, the vocals are slightly recessed. As someone who prefers emphasis on the midrange, especially vocals, I thought I would be unhappy with the Unicrom here, but in reality, it actually performs good enough that I don’t mind it. Female vocals shine through with wonderful weight and clarity, bringing lots of energy and a general liveliness to the sound.

Male vocals can sometimes sound a bit thin, lacking that full body and weight. Overall, though, vocals and instruments here sound clear and even spacious.

Treble

The treble acts as a very nice balance with the bass emphasis. Detail retrieval is excellent, as is the overall texture of cymbals and high-hats. There’s a slight airy quality present, but it’s never sibilant or sharp. The energy present in the treble may be bothersome for those who are very treble sensitive, but for me it was generally a fatigue-free experience and with great treble performance.

Soundstage and Imaging

The soundstage is average for an IEM of this price. Not to say it is bad or good, but simply performs good enough, offering adequate width, depth, and height. The imaging performance is also in line with a good single DD implementation. Really, nothing to complain about here.

The PULA Unicrom comes in at $79.99 USD, and when taking into account how it sounds, I think the price is perfect. For me, it sounds somewhat similar to the Juzear x Z Reviews Defiant. I prefer the bass performance of the Defiant, but I like the Treble of the Unicrom. The Defiant is a bit more technical, but also $20 more expensive. It almost makes the PULA Unicrom a no-brainer, then, if you’re looking for IEMs more on the budget side. It sounds great for pretty much every genre, is extremely comfortable, and comes with solid, quality accessories. Great job here, PULA!

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