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  • The 7Hz x Crinacle Zero 2 Review

    March 25, 2024 4 min read 0 Comments

    The 7Hz Salnotes Zero took the budget audiophile world by storm. Praised for its neutral sound signature and exceptional value, it became a go-to recommendation for those seeking a step up from standard earphones, both in Bangladesh and globally. Salnotes teamed up with audio reviewer Crinacle to tune the Salnotes Zero as well but at that time as per Crinacles request he asked Salnotes to not include his name with the product as he was also working with Truthear on theirs Zero project. However this time he has agreed to put his name up as well with the product and this time he is promising an upgrade while retaining the winning formula. But does the Zero 2 live up to the hype? Let's delve in.


    • Frequency response range: 10HZ-20KHz
    • Impedance: 32 ohms
    • Total Harmonic Distortion (THD): <1% at 1KHz
    • Driver: 10mm dynamic driver
    • Cable Interface: 5mm
    • Plug Type: Detachable 0.78mm 2Pin

    Out of the box:

    The packaging is exactly similar to it’s predecessor. Opening it the very first thing you will see will be the IEM and afterwards a package of colourful eartips and the cable itself. The ear tips come in a delightful array of colours, catering to a variety of tastes. While black isn't included, it might be a preferred option for some users.The included cable however seems to be a bit of a downgrade, it is a bit thin compared to the original Zero due to which it will be a bit more prone to wear and tear.

    The 7Hz x Crinacle Zero 2 Earphone

    Build quality:

    The Zero 2 retains the familiar, no-frills aesthetic of the original however this time making the housing translucent. The lightweight plastic shells are simple yet functional, and available in a variety of colours to suit your style. While some might crave a more premium feel, the build quality feels solid for the price. Furthermore the design is quite comfortable and you will be able to wear the IEM all day long without any discomfort.

    The 7Hz x Crinacle Zero 2 Earphone

    The Sound


    The biggest change in the Zero 2 lies in its sound signature. Gone is the strict neutrality of the original. The Zero 2 embraces a warmer, more bass-forward sound. This is thanks to a newly developed 10mm dual-cavity dynamic driver with a PU+Metal composite diaphragm. The bass hits with more authority, adding punch and excitement to genres like hip-hop and electronic music. However, this boost is achieved without sacrificing too much control. The bass remains tight and detailed, avoiding the muddiness that can plague budget IEMs.


    While the bass takes centre stage, the mids haven't been completely overshadowed. Both Female and male vocals retain good clarity, and instruments are well-represented throughout the midrange. Moreover, the weight and texture feels nice and there’s no shoutiness. Audiophiles seeking a perfectly analytical sound might find them a touch recessed compared to the bass, but for most listeners, they will provide a pleasant and engaging experience.


    The treble in the Zero 2 walks a careful tightrope. It extends well enough to add a touch of sparkle and clarity to the music, bringing out the detail in cymbals and high-pitched instruments. This prevents the sound from becoming dull or congested. However, compared to the original Zero, the treble here feels a touch subdued. There's a hint less air, that delicate breath of space around instruments, which some audiophiles might find lacking. However, this trade-off helps to tame any potential harshness and ensures a smooth, fatigue-free listening experience even at higher volumes. Treble-sensitive listeners will appreciate this approach, while those who prioritise a more airy soundscape might need to consider using EQ adjustments.

    Sound Stage:

    One of the most surprising aspects of the Zero 2 is its soundstage. Soundstage refers to the perceived width, depth, and placement of instruments within the music. Budget IEMs often struggle in this area, delivering a congested and narrow sound. However, the Zero 2 punches well above its weight class. The improved driver design and tuning seem to create a surprisingly spacious soundstage. Instruments are well-separated, with a decent sense of left-to-right and some layering from front to back. While it won't compete with high-end IEMs known for their expansive stages, for the price, the Zero 2 delivers an impressive sense of space that allows you to appreciate the intricacies of your music.

    Overall Impressions:

    The 7Hz Salnotes Zero 2 takes the legacy of its predecessor and injects a dose of bassy fun. This will undoubtedly appeal to listeners who found the original a tad too neutral. However, purists seeking strict neutrality might be better off sticking with the Zero. The Zero 2 elevates the budget IEM experience with a surprisingly spacious soundstage and solid technical performance, solidifying its position as a champion in this price range.

    Who is the Zero 2 For?

    Bass lovers seeking a budget-friendly IEM with a fun and engaging sound.

    Fans of the original Zero who want a bit more low-end punch and rumble. Anyone looking for a significant upgrade over standard in ear monitors.

    Final Thoughts:

    The Zero 2 isn't a revolutionary upgrade, but it's a smart evolution. The improved sound caters to a wider audience while retaining the excellent value and sound quality that made the original a success. If you're looking for a budget IEM that delivers a fun, immersive listening experience with a satisfying bass presence, the Zero 2 remains a strong contender.