Yinyoo KBEAR KS2 in Ear Monitors, KB KS2 Stereo Bass Headphone, 1BA+1DD Hybrid Over-Ear Earbud Headset Noise Cancelling Earphone with Removable Cable for Running Walking Church Stage (No mic, Green)

Product Information

I’ll be splitting the review into two sections with the first part being the KS2 earphones and then following on with the S1 Bluetooth cable upgrade.

Inside the box you’ll find the following: 1x Pair of earphones (with tips fitted), 1x cable, 3x addition silicone tips, 1x Chinese/English user guide. I tested the KBEAR KS1 with a Khadas Tone Board -> Topping L30 amp, Sony NW A-55 DAP (DMP-A50 FEv2 Classic Mr Walkman Mod), smartphone, Shanling Q1 DAP, Tempotec Sonata HD Pro, ESS ES9280C PRO DAC/AMP, and a Khadas Tone Board -> Fiio A3 Amp. I found that most tenors will react quite differently as some can come across sharp and more knife edged depending on the singer or track. Those familiar with KB budget offerings will recognize the cable immediately although there are some differences from the previous generation.The box is a very small one with an outer sleeve which has three different Storm iems in each of the different Storm colorways and each are imposed in line with each other. The slight contrast between the two sets are an improvement of coherency and the sound field width of KS1 is a bit narrower compared to Storm.

It has a small white-coloured box with product photo at the front with model name and logo print, then a company address at the left side of the box and information about its specification and some address of distributors in EU at the back. Through the optimization of the internal cavity acoustic structure, the overall sound is more warm and charming, and the soft and mellow audio performance is reproduced as the real picture. She comes across clean and with nice resolution but warmer and more laid back than many iems of late. For me I do enjoy a bit more of a neutral leaning source with good energy and dynamics to drive the KB01.

I have had around a month of listening to this set and I have to say that the KB01 is going to compete very well against the competition. With its sound signature that delivers a fun, engaging and pleasurable listening experience which will probably cater more to casual listeners. Secondary harmonics of cymbals and hi-hats have a decent trail-off which proves the Storm does have decent extension past 8k. The treble area has more shine and extension (by a small degree) on the Cadenza while the KB01 is a bit more laid-back.