HIFI Diary: Moondrop MM3A Active 3-inch Studio Monitor Speakers Comparison Review

I. Introduction

Thanks to a community member for sending this in for review. The subject of this review is the Moondrop MM3A active 3-inch studio monitor speaker, which also appears to be Moondrop’s first official speaker product. As their debut speaker offering, it presents a prime opportunity to glimpse Moondrop’s actual speaker design and manufacturing capabilities. As one of the few domestic Hi-Fi manufacturers currently equipped with a complete acoustic laboratory, the BLOG owner was, frankly, quite eager to see what their first speaker could deliver. The speaker pitted against the MM3A in this comparison is the Edifier N300, which the BLOG owner previously praised highly. Since the N300 is currently hooked up to the laptop in the BLOG owner’s workspace, this exact setup was used directly for the evaluation.

Additionally, regarding how to choose desktop speakers, as well as various placement and sound quality considerations, it is recommended to read the introductory guide previously written by the BLOG owner.

II. Preparation for Review

The device under review is the Moondrop MM3A 3-inch multimedia speaker. The testing setup was “PC – USB – MM3A”, with “PC – USB – N300” used as the reference; for Bluetooth, it was “Xiaomi 13 Ultra – LDAC – N300”. Stock foam pads were used for isolation, and all tests were conducted on an ordinary wooden coffee table. The speaker enclosures were spaced roughly 80 cm apart. Given the driver size and power limitations, this kind of workspace nearfield placement is arguably the intended application for such compact 3-inch desktop speakers, making them ideal for tight spaces and crowded desks. The setup followed an equilateral triangle layout conforming to nearfield monitoring requirements. All cables used were the stock cables provided in the box.

Before diving into the review, a few clarifications are necessary. First, as of the time of publication, LDAC could not be enabled over mobile Bluetooth — there was simply no option to turn on LDAC anywhere, the user manual gave no instructions for it, nor could the setting be found in the mobile app. Second, the sonic presentation over Bluetooth differs significantly from the USB PC connection; this cannot simply be boiled down to which one is strictly better or worse. Considering this speaker is positioned for nearfield monitoring, the main body of this review will focus on the USB connection, with supplementary Bluetooth observations included in the conclusion. It is also worth noting that just before publication, Moondrop released a firmware update for the MM3A, meaning this review reflects firmware version 1.2.5. Its sound differs drastically from firmware version 1.2.3; readers who “had the fortune” of hearing the earlier version should keep this in mind. Lastly, the sound profile mode selected on the speaker was Monitor.

III. Test Tracks / Scoring Methodology

The track selection consists of music the BLOG owner regularly listens to, roughly weighted as 50% Japanese ACG music, 30% Pop, and 20% Classical. The scoring standard is simplified from Liu Hansheng’s 20 Audio Evaluation Criteria. The evaluation methodology and testing system are continuously and dynamically updated. The brand-new crowdsourced testing platform is also live, where you can look up various scores from DDC interfaces to DACs, earphones to speakers, and everyone is welcome to upload their own ratings. Feel free to explore and use it.

IV. Testing Begins

1. Track: Shanghai Teahouse (Chinese Tea) (上海紅茶館 (Chinese Tea)), Artist: TAMUSIC, Album: Touhou Lullaby (東方子守唄)

Next, we dial up the difficulty to examine overall cohesion during multi-instrument ensemble playback. Under a more complex arrangement, the MM3A exposes some less-than-ideal shortcomings: because the piano’s recorded level in this track is lower than in the preceding piece, the piano’s imaging distance, dynamic range, sound pressure level (SPL), and even subtle detail rendering all suffer to varying degrees. To achieve sufficient listening satisfaction, the BLOG owner had to crank up the volume knob substantially (in testing, it had to be turned to nearly maximum 100 to obtain acceptable SPL and dynamics). While this mitigated the issue to an extent, it also indirectly magnified frontend noise floor. The N300, on the other hand, is the exact opposite — it lacks the MM3A’s razor-sharp soundstage imaging and outline definition, but in return delivers a smoother, more infectious musical flow. Overall, the N300’s dynamic headroom and SPL output are noticeably superior to the MM3A’s, handling large-scale passages with greater composure.

2. Track: Tragic Love Song of the Sky (天空の悲恋歌), Artist: TAMUSIC, Album: Touhou Violin 1 (東方バイオリン1)

We continue ramping up the difficulty to evaluate how well multiple instruments harmonize together. Under the increased demands of multi-instrumental performance, the MM3A reveals some minor imperfections in its sound. Because the piano’s recorded sound pressure is lower than in the preceding track, the piano’s imaging distance, dynamics, SPL, and detail resolution all become weakened to varying degrees. During testing, the BLOG owner had to push the volume significantly higher (requiring a volume level of 100 to achieve satisfying sound pressure and dynamic performance) to partially alleviate this problem. The situation with the N300 is quite the reverse: while it lacks the pinpoint imaging precision of the MM3A, what it delivers instead is a much smoother and more engaging musical flow. In terms of overall dynamics and sound pressure output, the N300 proves notably better than the MM3A.

3. Track: Keep Singing for You (为了你唱下去), Artist: Akie Qiuhui (Akie秋绘), Album: Keep Singing for You (为了你唱下去)

This is the BLOG owner’s favorite song originating from Luo Tianyi; every listen to the lyrics brings a profound wave of emotion. It is here that the vocal presentations of the N300 and MM3A diverge dramatically. Because vocals naturally command the lion’s share of most listeners’ attention, the N300’s fuller, richer, and more emotionally charged vocal delivery carries amplified impact. In contrast, the MM3A’s vocals are leaner, cleaner, and exhibit a distinct “dry monitor” character. This tuning approach is neither inherently good nor bad — in a music production setting, it certainly helps recording engineers and producers spot flaws in vocal tracks with greater acuity, but it also readily exposes the playback hardware’s limitations: while the MM3A’s vocal imaging is respectable, its lack of fullness and three-dimensional dimensionality is evident across various vocal tracks.

V. Conclusion

Some readers might wonder: since the MM3A’s tuning leans toward studio monitoring, does the N300’s sound signature imply a lack of “fidelity”? Not necessarily. After all, both speakers belong to the entry-level segment and inherently face physical constraints. For instance, the MM3A’s treble can hardly be described as lush or fully extended; on the other hand, while the N300’s highs lean slightly bright, their penetrating clarity in real-world listening is undeniably stronger. In the low end, the MM3A’s drum performance (sound pressure and dynamics) holds no clear advantage over the N300; however, when it comes to rendering the physical texture and body of acoustic instruments (such as cavity resonance and contour definition), the MM3A is noticeably a step ahead. Overall, the N300 is warm and passionate — you could say it doesn’t aim for strict Hi-Fi neutrality, but its presentation is smooth, engaging, and infectious. The MM3A, in contrast, is cool and restrained, excelling in certain acoustic and ensemble tracks, but when confronted with more demanding recording environments (especially tracks that have undergone heavy dynamic compression), its shortcomings in sound density, dynamic range, and micro-detail resolution are exposed.

To be fair, the overall performance levels of these two speakers are quite close. However, the N300 is better at masking its weaknesses behind its strengths, which makes it versatile across a broader range of music genres and environments. The MM3A is more straightforward: where its strengths lie, it punches well above its weight class, but where it falls short, it can indeed be frustrating. Consequently, the MM3A’s musical versatility is narrower than the N300’s, particularly for movies and gaming, where the MM3A holds no advantage (the gaming EQ was not tested; the BLOG owner wouldn’t bother switching profiles back and forth anyway, especially since toggling on PC is rather inconvenient). All in all, the MM3A is a fine speaker. Distinct from the N300’s vibrant and energetic character, it carves out its own niche in the ~¥500 ($70) territory with a calm, refined sound, offering enthusiasts a compelling option. The BLOG owner believes the breakdown for both speakers has been laid out clearly — the choice ultimately rests with your own priorities.

PS, to be completely honest, I was genuinely exasperated: when the MM3A was on firmware 1.2.3, the BLOG owner had already finished writing the entire review! Then firmware 1.2.5 dropped, and the sound changed dramatically. It took the BLOG owner a considerable amount of time to recalibrate first impressions and rewrite the piece, throwing away hours of hard work! I simply have to share the original first-edition conclusion here just to call out Moondrop for this headache:

No, sigh, just no! If you say the BLOG owner doesn’t know how to balance praises and critiques diplomatically, that’s certainly not it — I’d like to think my writing ability is at least above primary school level. But facing Moondrop’s debut speaker, the MM3A, it is truly difficult for the BLOG owner to utter an unqualified ‘good.’ It isn’t without merits; in fact, on the MM3A, the BLOG owner can genuinely feel Moondrop’s earnest desire to build a great speaker. Regrettably, however, a great product cannot be willed into existence by good intentions alone, nor does having an audio laboratory worth hundreds of thousands or millions guarantee success.

The MM3A does not pander to mainstream consumer tastes (or rather, it still offers multiple other presets); it avoids a V-shaped tuning curve, striving instead to present a normal, uncolored sound to the listener. This aligns with its positioning as a studio monitor and demonstrates Moondrop’s persistence and ambition. But the problem is, for a speaker priced around ¥500 (~$70), expecting it to deliver both Moondrop’s signature monitor tuning and top-tier technical performance is simply asking for the impossible! Distancing the vocals certainly avoids the in-your-face vocal projection favored in pop music, but it simultaneously imposes much higher demands on background separation and imaging. Accommodating micro-dynamics at low volume leaves macro-dynamics at high volumes compromised (which might also stem from power amplifier design limitations). This lingering sense of falling short permeated the entire audition period with the MM3A, leaving the BLOG owner lamenting its missed potential time and again!

Therefore, in conclusion, the BLOG owner can only say that the MM3A is truly a massive stumbling block stepped right into by Moondrop on their journey into future speaker products. This pitfall affects not only prospective and current buyers, but Moondrop themselves as well. Hopefully, this will not deter Moondrop’s resolve for future speaker releases. The market retains ample patience to grant Moondrop room to improve for their next speaker iteration, and the BLOG owner eagerly looks forward to their next product.