【True Wireless earbuds review】SONY WF-XB700: It outputs a well-balanced song without breaking it, and emphasizes the low range so that you can hear it well. Good compatibility with EDM

Sony WF-XB700 Extra BASS True Wireless Earbuds Headset/Headphones with mic for Phone Call Bluetooth Technology, Blue, Model: WFXB700/L

Basic specifications
Unboxing
Fit
Connectivity
Sound quality
- Frequency response
Recording signature
- JAZZ
- OST
- Classical
- Rock
Final verdict
Recommended articles

This article is a translation of the following Japanese article.

www.ear-phone-review.com

The model to be covered this time is the SONY WF-XB700. I think it's impossible to explain about SONY anymore, but it is one of the top audio brands representing Japan or the world, and it is a prestigious audio company that continues to deliver extremely high-quality audio products to the world.

The Sony WF-XB700 is a deep bass model that Sony has proudly launched into the world.

Basic specifications

Continuous / maximum playback time: 9h / 18h
Waterproof performance: IPX4
Supporting codec: AAC / SBC

Unboxing

The overall design of the earphone package is fairly standard at the SONY package at this price range. Accessories are ear tips, charging case, charging cable (Type-C), and instructions.

The earphone case has a slightly plastic feel and emphasizes sportyness and casualness, but the transparent part is processed like frosted glass, and it is rather elaborate. Rather, it is a rather stylish design that disguises itself as a cheap feeling.

SONY WF-XB700

Fit

The fit is very good. At first glance, you might think that it has a weird-shaped weird shape, but because the nozzle area is well made, it does not come into a weird position even if you fit it loosely, and you can easily realize a solid wearing feeling.

SONY WF-XB700

Connectivity

Quite excellent in the price range. I don't know well because I haven't been to a crowded place, but it's good at home. It also has excellent distance resistance, and it is seamless and undisturbed even at a distance of 5m. Even if there is a shield, it will connect without problems.

I think there is almost no white noise.

SONY WF-XB700

Sound quality

Measuring equipment

SAMURA HATS Type3500RHR System: HEAD & TORSO, left and right S-Type ear model (Type4565 / 4566: IEC60268-7 compliant)
AWA type 6162 711 ear simulator
Microphone preamplifier: Type4053
Type5050 microphone amplifier power supply
Audio interface: ROLAND Rubix 24
Analyzer software: TypeDSSF3-L

*Due to the response of the ear simulator, the reliability below 20hz and above 16khz is not high.

www.phileweb.com

Frequency response

In order,

[AET07 M attached] Separate left and right
[AET07 M attached] Average left and right
[AET07 M attached] Separate left and right (free sound field corrected)
[AET07 M attached] Left-right average (free sound field corrected)
[Standard eartip M attached] Separate left and right
[Standard eartip M attached] Average left and right
[Standard eartip M attached] Separate left and right (free sound field corrected)
[Standard eartip M attached] Left-right average (free sound field corrected)
Comparison (free sound field corrected)
Comparison (free sound field corrected/2khz-24khz)

* "AET 07 M size" is the reference eartip for measurement of this blog. All other eartips are standard with this earphone package unless otherwise noted.

SONY WF-XB700

First of all, it's not clear why my earphones have explicit left-right differences in the deep low end. I repeatedly considered the possibility of measurement failure and changed the measurement location in consideration of the feeling of wearing and the possibility of environmental noise unique to the location, but this left-right difference does not disappear. The reason for its occurrence is a mystery and it is mysterious at the moment, but I will post it as it is.

The package of this earphone says "Achieves overwhelmingly heavy bass and clear vocals", but as you can see, the sound design is rather straightforward and aims to achieve that claim. It can be imagined that the bass and vocal range are emphasized, and the mid and high range has a rather natural luster, and the high range is somewhat flashy. The balance is close to flat, except for the explicit ridges in the deep bass, and it seems that the pitch is adjusted very carefully so that the deep bass does not affect the natural feeling in the midrange. It's a typical warm sound.

hifigo.com

Those who bought this earphone thinking it was a rugged heavy bass model may be surprised that the sound field is relatively bright. Frankly speaking, the midrange is fairly rich to make the vocals look nice, without the cramps typical of low-end models, and vocals sound really clear and close to natural. There is not much dry feeling that is often found in V-shaped, the mid and high frequencies are quite lively, the coloring in the high frequencies is not bad, and the high hat splashes that disturb the vocals do not become annoying, so we can convinced by the phrase "clear vocal".

The problem is the "overwhelmingly heavy low range", which is actually emphasized in the deep part, but because of the acoustic design considering the mid range, the presence of the low range is Not noticeable. Therefore, it is true that the heavy bass sounds are brought out when you listen to rock music with heavy low frequencies, but the low frequencies do not have a significant presence in general songs. The people who usually listen to the rugged low frequencies and the bristle bass sounds, the more they would like to ask, "Where is this suitable for heavy bass model?" Rather, many people may feel that it is a tight low range rather than a thick sound that the word “quantity” can imagine.

That's why I'm not used to low-frequency models, it's nice to hear with an interest what a normal listener is like, but a person who is a low-range junky may make an unsatisfied sound. Also, I think it's a pretty good earphone for listeners who enjoy the heavy low-range and mid-range transparency in deep places like EDM.

SONY WF-XB700

Recording signature

Please refer to the following for the basic principles of recording signatures and how to enjoy them.

www.ear-phone-review.com

The recording signature is posted for advisory. Free sound field adjustment is added. The source is FiiO M15 and the codec setting is AAC. The eartips used are the "Standard silicon M size".

blog.ear-phone-review.com

The music used in the recording signature is from the game maker Nippon Falcom, which I love.

www.falcom.co.jp

JAZZ

anchor.fm

Sophisticated Fight / Sora No Kiseki First Chapter & Second Chapter Super Arrange Version / Copyright © Nihon Falcom Corporation

OST

anchor.fm

Sophisticated Fight / The Legend of Heroes: Sora No Kiseki FC Evolution Original Sound Track / Copyright © Nihon Falcom Corporation

Classical

anchor.fm

Rock

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The Decisive Collision / The Legend of Heroes: Sen No Kiseki Super Arrange Version / Copyright © Nihon Falcom Corporation

Final verdict

Comprehensive evaluation:	★★★★★

We recommend it as a low-end model introductory machine. While maintaining the natural midrange atmosphere with a high vocal focus, the presence of the deep low range is added, the usual music is a little deep, warm and warm, and it is adjusted so that it sounds crisp. Well, it's for everyone. In addition, the tight, stylish deep low range and the clear midrange of electronic sound are good with EDM. However, if you listen to it as a heavy low range model and expect a rugged low range, it is basically a tight and elegant low range, so you will feel that it is too elegant. In fact, I wanted to hear more funky bass.

The quality is high as a whole, the specifications and communication quality are sufficient, and it is an excellent earphone in this price range.

Sony WF-XB700 Extra BASS True Wireless Earbuds Headset/Headphones with mic for Phone Call Bluetooth Technology, Blue, Model: WFXB700/L