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

The KZ DQ6 has a triple dynamic driver configuration with a fairly similar frequency response curve as KS1. DQ6 has more controlled and tighter bass with more linearity between sub and mid-bass. The overall bass emphasis is slightly less on DQ6 but it carries more authority due to its extension and reach. SE output: Behringer UMC404HD / Xiaomi Mi 9T smartphone / iPad Air3 / Cayin N3 & NX4 DAC - gain switch increases all frequencies plus quantity of bass & rumble of sub-bass allows for “sweet spot” volume levels over halfway with no distortion. Additional mobility is provided by Radsone EarStudio ES100 with additional EQ via iPad app.

Every other genre is thrown out the window as the mids feel thin, compressed and peaky due to the slight emphasis on some parts of upper mids. The IEM’s can present vocals but this is not what you buy the KS2’s for. Given how expansive the soundstage is, I thought the KS2 would do well with Orchestral or Classical music. Unfortunately violins are screechy and the thin mids take away the magic of the majority of string and wind instruments. The KS2 housing appears to be plastic in nature given how they look and feel. The housing appears fairly sturdy and stands up to daily casual use. A small air vent is located on the inner side of the housing (just above the large 10mm Dynamic driver is located) where the ear concha is located. The nozzle is a fine looking gold coloured aluminium alloy. Given its price point, this is quite a bonus in terms of built quality.Note: The review unit was offered to me for free in exchange for an honest review by KBEAR representative. This however does not have an impact on my review. But in reality what you're getting is an earphone that you can throw on a phone and use out and about. No amps needed. Bass genres shine on the KS2 but I do notice some grating treble issues with EDM at times. Synthetic treble notes. Actually all treble notes will be highlighted.

The first thing I noticed about the Pro X highs was that the treble is noticeably smoother and more even than the old Pro. This is a sweeter, wetter sound than the scratchy KZ treble of old and it makes a big difference in the overall audio quality. The KS2 is a 1+1 hybrid with one balanced armature and one dynamic driver per side. Coming in at under 30 USD, the KS2 has to square up with heavy hitters from brands like KZ, TRN, Moondrop, and more. Oddly, some of the strongest competition comes from KB EAR themselves in the KB04, another recently released 1+1 hybrid. With it’s cheap price, users should not expect the most robust build on the market; instead, the KBEAR KS2 is fully made of plastic but, consequently, being particularly light weighted – the only metal piece are the nozzles. The second factor is a massive one. There’s an annoying hissing sound when in standby mode for 10-15 seconds. This noise continues throughout use and noticeable on lower volume and on certain audio tones.The nozzle is metallic and gold, its length is 5.5mm. The base is a small ring, with a diameter of 6.4mm. The inner cylinder, measures almost 3mm and its diameter is smaller, 5.1mm. Finally, the outermost ring, has a diameter of 5.9mm and its length is almost 2mm. Its interior is protected by a dense silver metal grid. 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. So, we’re getting wired and then wireless in this review, all with the same pair of earphones. KBEAR started their journey off on the wrong foot. From the horrible Opal (which I couldn't be bothered to review, as it should be erased from history) to the very restrictive F1, it seemed that KBEAR won't make it too far before vanishing from existance in the crowded earphones market. KS1’s treble is crisp with a hint of sparkle. Yet it’s non-fatiguing and maintains good energy throughout. Detail retrieval is quite impressive considering the earphone’s warm tone and budget price. The treble is lively and precise and it achieves that without any sibilance or shrillness. It’s really a pretty impressive quality treble for a budget IEM. Soundstage The ZS10 Pro (1DD + 4 BA) is likewise a V shaped set, and the ZS10 Pro also suffers from an occasionally harsh upper mids/lower treble, but I felt the lower mids aren’t as recessed in the ZS10 Pro.