On the IE 300, the sound was super clean, and I could distinguish each instrument quite clearly thanks to excellent imaging. The bass is mixed somewhat low, but that’s in the recording, not in the reproduction by the IEH.

Sennheiser IE 300 จะใช้ไดรเวอร์ Extra Wide Band (XWB) ขนาด 7 มม. ที่ได้รับการพัฒนาขึ้นมาใหม่จากทางแบรนด์ทำให้สามารถถ่ายทอดย่านเสียงต่างๆ และมิติเสียงได้ครบถ้วนทุกย่านเสียง นอกจากนี้ตัวโครงสร้างภายในของหูฟังยังถูกออกแบบ มาให้ช่วยจัดการไหลเวียนของอากาศให้เป็นไปได้อย่างราบรื่นมากยิ่งขึ้นทำให้เสียงที่ได้มีความเที่ยงตรงและสมจริงมากยิ่งขึ้นไปอีกครับThese earphones charm the ear, but their treble and upper-mids hog the limelight; they don’t allow the mids enough room in the rendering of the texture of vocals. The mid detail is there – it isn’t as soft as a pancake as it is in some lower-end earphones. But the choice to emphasise the treble and bass leaves the mids noticeably recessed in comparison to other similarly competent pairs. They focus on every musical strand, even as new ones come in. It would be unfair to call the Sennheisers boring or vague, but they are notably less astute and more subdued than their more talented, more affordable rival. Verdict The company has refined the 7mm ‘Extra Wide Band’ drive unitalso, as well as the chamber-within-a-chamber structure that helps manage airflow in an effort to produce a defined bass and equally satisfying midrange. Spec-wise, the IE 300 is fairly ambitious, quoting a frequency range of 6Hz to 20kHz, 16 Ω impedance, a sensitivity of 124 dB (1 kHz / 1 Vrms), and a THD of < 0,08 % (1 kHz, 94 dB SPL). These are very similar to the IE 900, although the IE 900 extends further with even less distortion. In practice, I find the IE 300 very easy to drive, although it enjoys as much power as you can give it and will respond to beefier amplification, even though it’s not strictly necessary. The reduced air volume produced a masking effect that obscured critical details within the source signal. A frequency absorbing resonator chamber was applied to reveal those subtle nuances once again. This collection of technologies works together in perfect harmony, establishing the IE 300 as a go-to benchmark earphone when sound quality matters. ”

This was a neat idea to put together a playlist that accentuated the good points of the ie300. You’ll find a lot of strings and vocals in my contributions to the list as those are the things I find the ie300 does with great aplomb.Sennheiser IE 300 จะมาพร้อมกับสายหูฟัง MMCX พร้อมแจ๊ค 3.5 มม. มีความยาวประมาณ 1.25 ม. ตัวสายจะมีการใช้เส้นใย Para-aramid ที่มีความแข็งแรงทนทานต่อการเกี่ยวดึงหรือการกระชากได้เป็นอย่างดี นอกจากนี้ตัวหูฟังยังมาพร้อมกับจุกหูฟังซิลิโคนและจุกเมมโมรี่โฟม อย่างละ 3 ไซส์ให้เลือกใช้งานได้ตามความต้องการอีกด้วย The Peer Gynt recording of Edvard Grieg’s “In the hall of the mountain King”. This piece has more dynamic range than most and gives the ie300 a chance to really show off the distance between the quiet passages while retaining detail and the elevated passages without loss of control of the low end. Right now, as I type this, I’m listening to the IE 900 playing Brian Eno’s An Ending (Ascent) both because I have a mild flair for the dramatic and because it contextualises where this headphone sits in the wider scheme of things. This is among the last, if not the last domestic Sennheiser product we’ll see before the new ownership arrangement starts to make itself felt. On the one hand, there’s a degree of sadness to this because, not only is the IE 900 the best earphone Sennheiser has made, it might well be the single best thing of the company's I’ve ever tested (it’s a three way tie between this, the original IE800 and the PXC550). If this is an ending, it is truly going out on a high.

We’ve of course featured and reviewed many Sennheiser products here on HFN. My personal favorite Sennheiser headphones are the HD 800 S, the HD 650 (on tubes) and the HD 660S. I’m a Sennheiser fan and I’m not ashamed at all to tell you that. On the other end, the bass response would probably be the most polarising thing about the IE300. No sugarcoating: this is a lot of bass and to the point where it starts cloud the melodic frequencies a little. Female vocals are a little huskier than I’m used to, strings sections clearly favour cello and bass, and I’m left wanting a little more crunch and “bite” out of the electric guitars. Still, not the worst in terms of fudging up the natural timbre of instruments. More likely than not, you, the audiophile, would’ve heard of the great Sennheiser brand due to their reputation in the headphones game.This design ensures that the cable is guided to minimize body borne noise. The IE 300’s supplied cable, which has a 3.5mm connector - is reinforced with para-aramid for outstanding stability and tear strength. Balanced cables with 2.5mm and 4.4mm connectors will also be available as optional accessories, while the use of a high-quality Fidelity+ MMCX connector ensures that cables can be easily replaced for optimal flexibility – and to guarantee you years of listening pleasure. Arooj Aftab’s gorgeous rendition of Baghon Main catches almost all the subtlety of the music and pristine vocals with the XM4, but even though the IE 300 sharpens the focus somewhat, I don’t feel like I’m missing anything, and indeed the Sony is probably the smoother of the two when I change focus from the music to writing this review. With its easy transitions from bass to mids, and a slightly rolled treble, the Sony is both warmer and softer, but no less engaging and entertaining than the IE 300 with this and similar music.