Sound Analysis.
I analyzed Svanar TWS sound performance paired up with my Galaxy S22 while playing a variety of test tracks, such as Agnes Obel “The curse”, Sandro Cavazza “So much better” (Avicii remix), C-Bool “Never go away”, Ed Sheeran “Shape of you”, Alan Walker “Darkside”, Galantis “Hunter”, Iggy Azalea “Black widow”, Indila “Boite en argent”, Dua Lipa “Love again”, Counting Crows “Big yellow taxi”, Bob Marley “Jamming”, David Elias “Vision of her”, and Michael Jackson “Dirty Diana”. Svanar TWS had at least 75hrs of a combined burn-in/playback time. Also, I was using Azla Crystal eartips.
I hear Svanar TWS to have a mildly v-shaped sound sig with a fuller body, natural detailed tonality. The bass is more rounded, less aggressive, having a bit laidback DD performance with a slower attack and a bit longer decay. Sub-bass rumble gets slightly elevated in HiFi mode but becomes more balanced in ANC and Transparency modes which I suspect due to a higher output of internal amp in HiFi mode. Mids have a fuller body natural detailed tonality. Treble has a well-controlled sparkle to give mids/vocals its natural resolution, though will depend on eartips selection which can tilt the scale from sounding natural to being a bit harsh. Hifiman kept it closer to wired Svanar tuning, giving its TWS version a more natural sound, though wired Svanar tuning has a smoother treble.
The soundstage is surprisingly wide, and when compared to wired Svanar, I found the sound to be more holographic. But the layering and the separation is just average. These are not your typical analytical micro-detailed earphones and they don’t have as much air between the sound layers.
For those who are interested, here is FR measurement of Svanar TWS. Just please keep in mind, that peak closer to 9k is well under control with the right selection of eartips.
Sound modes.
ANC mode – does a fine job with active/passive noise canceling, and I hardly hear any background white noise. It does drop the sound volume down by a few dBs in comparison to HiFi mode. Also, lowers the sub-bass rumble, making it closer to Svanar wired quantity. As a result, mids/treble have a slightly more forward presentation. Very low noise floor, hardly even noticeable. Great to enjoy the music while tuning out the outside world. And the battery life is only one hour less than in transparency mode.
Transparency mode – less isolation to let in more background sounds to raise the awareness of what is going on around you. Still has an acceptable level of passive isolation, but the background is not as black. The tuning change is very similar to ANC mode, and the volume also a little lower. This mode gives you the best battery performance, probably most useful when exercising or doing outdoor choirs when audio listening is less critical
HiFi mode – has a good level of passive noise isolation, and I hear a bit less background noise in comparison to transparency mode. Also, the noise floor itself is blacker, and I hear more weight in sub-bass rumble. The volume is higher, and the sound tuning is more fun due to the additional heft in sub-bass. Also, I hear a slight improvement in dynamics. I assume in this mode the internal amplifier is set to max power, pushing topology diaphragm drivers to their full potential, which also results in a shorter playback time. I know with some other TWS in HiFi mode they switch to a higher sampling rate, but not sure if the same is true here, no additional info is available.
Eartips selection.
The selection of eartips is crucial to any universal in-ear monitors (wired or wireless) and will affect the sound, especially the bass impact depending on the seal. Due to a large opening of my earcanals, I usually go for the largest size eartips to get a better seal, thus was only able to use large size stock silicone tips, the rest were too small for my ears. Also, please keep in mind, eartips impressions are subjective and will be based on anatomy of your/my ears.
Stock silicone – mids are more forward, bass has a good extension, but the quantity is attenuated down, lacking in weight. Also, treble sounds a bit splashy. Didn’t work for me.
Azla Crystal – improves the bass, scales up the quantity of sub-bass rumble and mid-bass impact, mids are more balanced and have a fuller body, and treble is a bit smoother. This pair up synergy worked the best for my ears.
Spinfit W1 – very similar to Crystal, just with a little less bass quantity. The problem here was a diameter of the eartips stem, being a bit too big, coming off the nozzle. Thus, it didn’t work well here.
Spinfit CP100 – had a more secure nozzle fit which gave me a deep sub-bass extension with more elevated bass quantity. Mids have more clarity. Treble was just a touch splashy. I like this pair up a lot, but in a few of the songs the treble got a bit hot, so I switched back to Crystal.
Symbio F – great pair up synergy, I can hear a deep sub-bass rumble, faster mid-bass punch, natural detailed mids, and treble with a perfect amount of sparkle. But a big problem her was the L size eartips were not as comfortable, a bit too big for this fit, while M size were a bit too small, and I couldn’t keep earphones secure in my ears.
Symbio W – bass and mids were great, but treble got splashy, a bit too much for my taste.
Final Type-E – like Symbio W, I can hear a deep bass and clear detailed mids, but treble got splashy and a bit overwhelming.
As previously mentioned, Svanar TWS and its charging case were designed for full size eartips which I appreciate greatly because Svanar sound is very eartips dependent, especially to tame down mid-treble sparkle. So, the more pairs you can try, the better is your chance of finding what works for you. Full size eartips give me the best seal and the most secure fit. In case of Svanar TWS, I found Crystal to work the best for my ears, but YMMV.
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