Introduction TinHiFi has released two new IEMS C2 and C3, opening the C series. According to the website, they are dedicated for the cold winter of 2022-23, with the intention of making it warm. Following the descending order of my trio of reviews (T4, C3 and C2), it is now the turn of the C3. These are IEMS with a 10mm dynamic driver with a PU + LCP composite diaphragm, an ultra-powerful N52 magnet, all inside a semi-custom, 3D printed capsule that adopts a carbon fibre pattern on its outer face. To top it all off, a 4-strand 270C silver-plated...

Introduction Until now I had not looked up the history of QKZ, ''Quality Know for Zero Defect''. It is a brand that was born in Bao'an district - China. In 2005, QKZ was divided into two subsidiaries: "QKZ" and "KZ". Currently, QKZ specializes in hybrid technology, balanced armature, zinc alloy earphones, CNC metal earphones, and Bluetooth v4.0 to v5.5. But if we talk about the current model, the QKZ x HBB Khan is a collaboration between QKZ and the famous audio reviewer HBB (HawaiiBadBoy from "Bad Guy Good Audio Reviews"). It uses a 10mm dynamic...

Introduction Tempotec, the well-known DAC/Amps brand has released its first desktop player, which includes DAC+AMP, WiFi, Bluetooth, touch screen and a mini operating system capable of hosting Apps such as Tidal or Qobuz. This All-In-One device falls into the category of Streamers. It is capable of supporting MQA x16, DSD256, PCM 32bits/768kHz, LDAC, Airplay, HIBY Link. It has audio inputs such as USB DAC, optical, coaxial, it is also compatible with USB disks or USB keys. It is a Bluetooth receiver (supports LDAC, UAT, AAC, APTX) and WiFi. In...

Introduction TinHiFi, on the market since 2017, sticks to the simplicity of the names, but adding that Plus. As a programmer, I prefer versions - how about V1, 2, 3 and so on? The surnames Plus, MK, Pro, Ultra and the like, boggle my mind. But that's not a criticism either, just a personal opinion. Well, here TiHiFi is back with the Plus version of its T4. That is, the current product is called... TiHiFi T4 Plus. Good! Who could say that this is the new version of the T4, but it is. It is in a similar price range and is based on the original design...

Introduction NiceHCK, the AliExpress shop, persists in the continuous improvement of its products and returns to the charge with the 4th generation of its 7 hybrid driver model, consisting of a 10mm dual dynamic driver with beryllium-plated diaphragm, four BA drivers and a seven-layer PZT driver. This is the NiceHCK NX7 MK4, a small-capsule IEMS, which has "stolen" the external plate from its partner Topguy. They have three filters for fine-tuning the sound, just like their previous generations. Most importantly, NiceHCK seems to have tamed the...

Introduction As stated on the WEB itself and I quote: “KiiBOOM is a collective of hobby enthusiasts from all around the world, with passions ranging from mechanical keyboards, high-fidelity audio, art toys (designer toys), garage kits, fountain pens, knives, watches, and fashion. Each member brings a unique set of R&D, marketing, and manufacturing skill sets from their respective fields, and allows an extremely diversified and comprehensive pool of knowledge on how to improve their hobbies.” On the other hand, the global team spans from the USA...

Introduction Dunu is probably one of the brands that I am most satisfied with. Historically, ever since I became a fan of headphones, I have considered Dunu to be one of the brands with the best added value. From their website, to the presentation of their models, the design of the IEMS and the level of their accessories, Dunu show why they are more than just headphones. Undoubtedly, both the packaging and the contents provide an unboxing experience among the most outstanding, even for the price of the model I am reviewing today: the Dunu Kima...

Introduction NiceHCK continues to combine the sale of audio products with the creation of its own products. And there are already quite a few home-grown ones. It is not surprising that, following the current trend, they designed IEMS with the most famous type of driver on the market today: of course, we are talking about the NiceHCK F1, an IEMS with a 14.2mm planar driver. Like other brands, NiceHCK wanted to go a bit further and this is shown in their external design, such as the use of nozzles to alter the sound. In terms of design, it is an...

Introduction It's quite impressive that the BQEYZ brand, with every model it releases, tries to find a new evolution. Their line of IEMS with piezo drivers is well known, which started with the Spring. It continued to evolve with the passing of the seasons (Spring 2, Summer). But something changed when Autumn came along and they created a single dynamic with the best tuning filter change design I have seen to date. When it looked like the Winter was going to be the new model, a new DD+piezo hybrid emerged with another name, called Topaz. Without a...

Introduction Due to the sixth anniversary of the brand, Letshuoer has seen fit to revise one of its latest successful models: the S12. And of course, the model could not have a different name than the Letshuoer S12 PRO. For this new model, the highlights are the new Space Blue colour and the inclusion of a new modular cable, which can change its connectors to 2.5/3.5/4.4mm. It's true that the changes are not only on the physical side, but the sound has also received a slight tweak. As far as I've been able to tell, the mouthpiece filter has been...

Introduction Believe it or not, the Kinera Celest Gumiho are going to be my first IEMS from this Chinese brand to review. First of all, I was pleased to see that Kinera has its website translated into Spanish and in it you can see all the information about the current models. There is a lot of information about this model in question and I will only write a brief summary, excluding all the driver controversy and the collaboration with Celest. The most important thing is that they use a driver with exclusive technology, it is a square planar driver...

Introduction What is it, a man, a bird? No, it's the SuperTFZ logo. Again the question: Is SuperTFZ the evolution of TFZ? Is it really an evolution? Let's see, let's start with the logo. If it is changed, it is for the better. I read a comment from a Head-fi user who said that the logo is a cheap imitation of Jerry Harvey. He's not wrong and from the first time I saw it, I didn't like it. I found the design unattractive. Secondly, the first model I tried, the Force 1, looked the same as the TFZ Essence. But, they also resemble many other IEMS that...

Introduction Aune Audio (Wuhan Ao Lai Er Technology Co., Ltd.) is a brand that was founded in 2004 by 6 co-founders, experts in various audio-related fields, such as hardware design, electro-acoustic design, programming, speaker design and tuning. The first time I tried an Aune product was not so long ago. I borrowed the BU2 portable DAC/Amp, as well as the iFi Audio xDSD Gryphon. Of the two models, without comparing them, I was most surprised by the BU2. I liked the sound. Soon after, Aune released this beautiful stationary tube DAC/AMP. It was...

Introduction As many of you already know, TRI is something like KBEAR's premium brand. This time, I am going to review the i ONE, which is the top of the range product using a single dynamic driver. A member of the i-series, this is a product that is over 300€ in price. It uses a powerful N52 NdFeB magnet for its 10mm driver with a PET carbon diaphragm. It has been manufactured in aluminium alloy under a 5-axis CNC machine. Its surface is anodised. It has a galvanised mirror coating and uses a 2.5D curved glass on its outer face. The cable is a TRI...

Introduction The EarMen Angel is the brand's second portable DAC/AMP, if we exclude the Colibri from this equation. Since that first flashy red TR-AMP, EarMen has devoted every effort to improving every aspect of that bold device. The external design is similar, changed to a deep, more celestial blue, perhaps that's where the name comes from. Now, its internal circuitry is fully balanced, a high gain knob has been incorporated, it has two 3000mAh batteries, 2 line outputs (3.5mm SE and 4.4mm BAL) and supports MQA, plus DSD 512 natively and up to PCM...

Introduction For the second time in a row, I repeat a review of a TinHiFi product. This time it is a new planar. TinHiFi is not new to planar IEMS and it's been more than a year since I reviewed the second planar IEMS the brand released, the P2. Those were premium IEMS that were very difficult to move. Really, the hardest IEMS I have ever tried. While their packaging was of high quality, their profile was "peculiar". It stood out for its high end, probably the most excited high end (especially in the air) that I have ever tested. However, I don't...

Introduction After a period without reviewing any TinHiFi models, they have now fallen into my hands again. The TinHiFi T2 DLC 2022 arrived home several weeks ago. They are, as you can see, a new evolution of the T2. I had the pleasure of reviewing the T2 Plus, but not the first T2. The T2 DLC 2022 do look like the concrete update of those initial T2. They have returned to the iconic cylindrical design of that saga (the T4 was similar), but they have updated their diaphragm, using a 4th generation DLC composite and a 10mm dynamic driver. It was a...

Introduction Hidizs is really active lately and is not losing any ground in the dongle market. It takes advantage of its experience with the Sabre Dual ES9219C SoC, which it has used in its latest DAPS, to implement it in its latest creation. This is the XO dongle, which also knows how to follow up on the taste of RGB LEDs, to adopt it as an attractive sales strategy. Of course, it also supports MQA x16, has two 3.5mm SE and balanced 2.5mm audio outputs, a sample rate indicator light, an O button to switch between two filters and an X button to...

Introduction ECCI seems to be an obscure brand from China, hailing from Dongzhan, Guangzhou. Looking for relative information I found that they have some peculiar IEMS (PG200, PR100 MKII, PR200 MKII, PR300 2), as well as several amplifiers (EC-1, Storm-6, Storm-B-3PRO). The aesthetics of these earlier models look like they belong to another era, while this new YST-02 has a more modern design. From this new batch and very similar to this one, there is the YST-03, whose external appearance is the same, but with one more driver. In fact, the YST-02 is...

Introduction You could say that TRI is KBEAR's premium brand. It is true that the parent company has relatively high-priced models, such as the Aurora or the Ormosia. But it is TRI that puts the high-end designs on the market. These include the Starlight, Starshine, Starsea, I3 Pro, Meteor and TK2. Their latest release is the TRI i ONE. In between, there is this collaboration between TRI and HBB (HawaiiBadBoy), called KAI x HBB. It's an IEMS with a 9.8mm dynamic driver and DLC diaphragm, all inside a golden capsule, almost completely, except for a...