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AIYIMA S600 Review

Nuyes

Active Member
Reviewer
Joined
Jun 8, 2022
Messages
280
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5,413
Location
South Korea
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It’s been a while since I reviewed a compact, entry-level bookshelf speaker.
This one comes with a variety of input/output options and even a remote control.
If it gets the fundamentals right, it could be worth a closer look.


Let’s dive in.




Frequency Response
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The frequency response is not what I’d call flat.
Even from the on-axis measurement alone, you can see that various forms of interference are affecting different parts of the response.


The -6dB low-frequency extension is around 59 Hz, followed by a steep roll-off at approximately 40 dB/oct.



CEA-2034
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With something resembling a waveguide paired with an otherwise unintelligible design intent, the resulting Spinorama data turned out quite curious.
The typical wide dispersion hump seen at the tweeter crossover point isn’t present here, but various irregularities suggest resonance and interference caused by the woofer diaphragm.




Nearfield Measurements
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As suspected, the woofer is handling the entire range—including the highs.
Because the woofer extends all the way into the upper treble, various interferences are inevitable in the range typically assigned to the tweeter.
Surprisingly, the port response looks relatively clean.




Directivity
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Even above 2 kHz, the woofer continues to radiate sound along with the tweeter.
But due to the uneven response of the woofer, it’s difficult to discern any coherent directivity pattern.




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The lack of a proper crossover results in an uneven response, which becomes even more pronounced in the vertical directivity measurement—where unit-to-unit distance differences are more evident at various angles.







Beamwidth
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There’s no meaningful control over directivity in this design, making this section difficult to evaluate in any meaningful way.


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That said, the vertical directivity tolerance is notably poor.




Polar Plot
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The polar response doesn’t show any consistent trend but rather irregular and jagged radiation patterns.
In the polar plot—where each frequency’s radiation pattern is viewed independently—significant anomalies were observed.
The unusually wide 5 kHz contour in blue is a prime example of this issue.


Well-designed speakers often show recognizable trends even in coarse octave-band polar data, but that wasn’t the case here.




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THD
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There was a clearly audible tonal artifact during playback.
Of course, this could simply be an issue with the particular unit I measured.







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Considering the size class of the woofer, its low-frequency reproduction may appear reasonably acceptable for the price.
But deep bass performance is not to be expected.






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Miultitone Test
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There was significant distortion across the entire spectrum.




80Hz
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Even when the measurement bandwidth was limited, the distortion characteristics remained the same.






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Due to the inherently high distortion levels, the relative distortion patterns showed little variation across different output levels.




Compression Test
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The 96 dB SPL curve fell outside the plot boundary.


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Just like this.





Deviation between 2 samples
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Given that this is a master-slave configuration (with an active main speaker and passive satellite), the overall level difference wasn’t too bad.
However, unit-to-unit inconsistencies in build quality resulted in noticeable left/right variation.


Note: I used the term “master-slave” in its technical context to describe the active/passive speaker structure. As a non-native English speaker, I wasn’t fully aware it could be sensitive for some readers. I appreciate your understanding, and no offense is intended.




Final Thoughts
Considering the price point, it may be acceptable for casual multimedia use.
However, if judged solely on acoustic performance, the speaker is a letdown.


In particular, vertical tolerance in the critical 2k–4kHz range is extremely narrow, which means vocal clarity could vary drastically depending on placement and listening height.


As a result, even for casual content consumption, I struggle to find a solid reason to recommend this product.


That’s all.
 
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180€/pair.
The closest good measuring alternative budget-wise I can think of with my limited knowledge are the JBL 305p mkII at 280€/pair and less connectivity options, and without remote of course, but they're way way better.
 
Am lacking some key inputs here, but got a report and so am responding. From my perspective as moderator, am lacking both the OP’s and the forum owner’s input. Both may take a while to respond, so this may evolve as yet.

While can specifically empathize, context matters. So, as for the OP’s use, master-slave was clearly technical and no offense appears intended. The OP may have more to add, but as for empathy, might note that English is not their primary language either. Many use translator software here and so is another potential consideration. There are also more than a few English words that are just as or perhaps more or less offensive depending on regional connotations.

So, while worthy of further discussion, seems another thread is needed to keep this one on topic. Until then, please keep your posts focused on this review.
 
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Please stop using language such as “master-slave”. This is incredibly outdated and offensive language
Thanks for the heads-up.
I used the term “master-slave” in a purely technical sense, with no intention to offend.

English isn’t my first language, and in audio hardware, that term still shows up from time to time—though I do understand it’s considered outdated and can be hurtful to some.

Am lacking some key inputs here, but got a report and so am responding. From my perspective as moderator, am lacking both the OP’s and the forum owner’s input. Both may take a while to respond, so this may evolve as yet.

While can specifically empathize, context matters. So, as for the OP’s use, master-slave was clearly technical and no offense appears intended. The OP may have more to add, but as for empathy, might note that English is not their primary language either. Many use translator software here and so is another potential consideration. There are also more than a few English words that are just as or perhaps more or less offensive depending on regional connotations.

So, while worthy of further discussion, seems another thread is needed to keep this one on topic. Until then, please keep your posts focused on this review.
Thanks for your thoughtful response, @RickS

That’s exactly right, the term was used purely in a technical context, without any social or historical reference.
I do understand the concerns raised, and I appreciate you acknowledging the nuances, especially for those of us who aren't native English speakers.

I’ve taken the feedback in good faith and will be mindful of terminology in future posts.
 
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Final Thoughts
Considering the price point, it may be acceptable for casual multimedia use.
However, if judged solely on acoustic performance, the speaker is a letdown.


In particular, vertical tolerance in the critical 2k–4kHz range is extremely narrow, which means vocal clarity could vary drastically depending on placement and listening height.


As a result, even for casual content consumption, I struggle to find a solid reason to recommend this product.


That’s all.
After this review, the guy who forgot to mount the crossover's low pass section on this sample will surely be fired..:p:D
 
Am lacking some key inputs here, but got a report and so am responding. From my perspective as moderator, am lacking both the OP’s and the forum owner’s input. Both may take a while to respond, so this may evolve as yet.

While can specifically empathize, context matters. So, as for the OP’s use, master-slave was clearly technical and no offense appears intended. The OP may have more to add, but as for empathy, might note that English is not their primary language either. Many use translator software here and so is another potential consideration. There are also more than a few English words that are just as or perhaps more or less offensive depending on regional connotations.

So, while worthy of further discussion, seems another thread is needed to keep this one on topic. Until then, please keep your posts focused on this review.
Sensible approach.

Poor speakers, but interesting review - much appreciated.

Language needs to evolve, for technical and also social reasons.
 
Temporarily locked while more thread maintenance is applied and encourage members to stay on topic.

Thread re-opened after off topic posts and replies were removed. Some additional advice has been issued and hopefully this thread can resume with more appropriate discussion.

Thanks!
 
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Thanks for your review @Nuyes :)

It wasn't a great speaker. Okay, $160 for an active speaker, you can't expect top notch, but a little better. They should, for example...:

That’s exactly what’s going on here. A proper crossover would have alleviated many of the issues, both audible and measurable.
One might wonder. AIYIMA can make good amplifiers but speakers are something else. Doesn't AIYIMA have a technically knowledgeable speaker designer on staff? Or can't they bring someone in on a consulting basis? Such a person could have pointed out the problem directly. A simple (not many parts, low order) cheap crossover would probably be enough to make the S600 speakers better and I'm not talking about top notch like Genelec, Neumann,AsciLab good FR but one for a $160 active speaker good FR.
Now it's up to DIY community to tinker with that instead. If they think the speaker has the potential to tinker with.
 
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Thanks for the heads-up.
I used the term “master-slave” in a purely technical sense, with no intention to offend.

English isn’t my first language, and in audio hardware, that term still shows up from time to time—though I do understand it’s considered outdated and can be hurtful to some.
Master and Companion is the term used by Devialet after they updated their language, don't know if there is a better phrase.
 
Thank god, there are measurements, else we had to buy this crap and be let down terribly.

Thanks @Nuyes
 
180€/pair.
The closest good measuring alternative budget-wise I can think of with my limited knowledge are the JBL 305p mkII at 280€/pair and less connectivity options, and without remote of course, but they're way way better.
If Edifier's published measurements are accurate, their MR5 BT have both of the above beat.
I got a pair for about US$110/pair off the chinese website Taobao.
Really good sounding speakers with plenty of low end for its size.
 
What an adorable little overbright in the treble, hollowed out in the midrange speaker! It's so cute and it has a big boy remote too! Guess this thread also tells us why we don't call the big bedroom the "master" anymore!
 
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Maybe something to play around with and tweak it with diy passive xovers as a beginners project.

Aiyima has to do some homework. Good loudspeakers are about know how, not so much fancy tec or cost.
 
If Edifier's published measurements are accurate, their MR5 BT have both of the above beat.
I got a pair for about US$110/pair off the chinese website Taobao.
Really good sounding speakers with plenty of low end for its size.
Hopefully, someone gets a pair of these to measure.
 
Not only horrible f response - horrible distortiion. No way to EQ that.
 
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