- Recommended for people like this
- Overview of Technics EAH-AZ40
- Build quality
- Connection quality
- Compatible Apps
- Sound quality
- Sound quality features
- General comment
- Purchase Link
- This review is written based on a "private purchase" or "product rented for a price".
- No remuneration or compensation, such as a manuscript fee, has been received for publishing this, and it is an honest evaluation based on measurement data from personal testing and personal opinion.
Recommended for people like this
- People who like deep, massive low frequencies
- People who are looking for a multi-point compatible model
- People who value functionality
Overview of Technics EAH-AZ40
- Total Score: 8.1 / 10.0
- Package: 8.0 / 10.0
- Build quality: 8.5 / 10.0
- Fit: 8.5 / 10.0
- High range: 5.0 / 10.0
- Mid range: 7.5 / 10.0
- Low range: 10.0 / 10.0
- Less distortion: 8.0 / 10.0
- Communication quality: 9.0 / 10.0
- Want to see the score ranking? Click here!
- Continuous / maximum playback time: 7.5h / 25h
- Waterproof performance: IPX4
- Supported codecs: AAC / SBC
Features of Technics EAH-AZ40
- Not Just for Music: Enjoy legendary Technics engineering for crystal clear sound in your phone and video calls and rich, expansive audio in everything from audiobooks to movies
- Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
- Switch Seamlessly From Your Computer to Mobile Devices: Go from video calls, to phone calls, to listening to music or working out; Multi-Point Connectivity lets you pair to more than 2 Bluetooth devices easily and reliably
- Ergonomic, Comfortable Design for A Custom Fit: Pairing timeless design with modern technology, AZ40 offers a comfortable in-ear headphone shape with 4 earpiece sizes to choose from for your best fit.Note:If you face issue in Bluetooth connectivity please turn off the Bluetooth function for a couple of minutes, then turn it back on
- Hear and be Heard, Even in Noisy Surroundings: Enjoy clear calls that amplify words and reduce outside sounds; JustMyVoice technology features 6 individual mics, with a snug, noise-reducing fit and advanced wind noise reduction
- Easy Setup with Long Battery Life: Quick setup with the Technics Audio Connect app, with 7.5 hours battery life (25 hours total including cradle charge)
The package meets the price level.
- Technics EAH-AZ40
- Charging case
- USB Type-C cable
Build quality meets price standard.
The fit is good.
I tested it by connecting it to a Cayin N6II/E02 with AAC.
I don't know because I haven't been in crowds, but it is stable in the home. Distance tolerance is excellent, and the connection is seamless and intact even at a distance of about 5 meters. Communication was momentarily interrupted by the obstruction, but the connection was quickly restored and music could be heard consistently thereafter.
There may be a small amount of background noise, but most people probably won't notice it.
The operation interface is a touch panel type.
|Power ON||Open the lid of the charging case and take out the earphones|
|Power OFF||Store the earphones in the charging case.|
|Pairing||Open the charging case lid, take out the earphones, and while the LED is lit blue, press and hold either the left or right multi-function button for 7 seconds|
|Play song||Tap the multi-function button once|
|Stop playback||Tap the multifunction button once|
|Forward song||Tap the right multifunction button twice|
|Backward||Tap the right multifunction button three times|
|Volume +||Tap the left multifunction button twice|
|Volume -||Tap the left multifunction button three times|
|Answer call||Tap the multi-function button once|
|End call||Tap the multi-function button once|
|Activate voice assistant||Press and hold the left multifunction button for 2 seconds|
|Hear-through switching||Press and hold right multifunction button for 2 seconds|
Compatible with Technics Audio Connect app.
What the app allows you to do:
- Sound Quality Customization
- Firmware Update
- Checking manuals
REW Frequency Response
Sound quality description
The following review was tested on a FiiO M15 with an AAC connection.
The Technics EAH-AZ40 has a V- or U-shaped sound signature.
Please see here for detailed reviews on sound quality.
Lows / Bass
The low frequencies of the Technics EAH-AZ40 extend quite deep.
Drums have excellent weight and impact, and the rumble is quite perceptible and quite realistic.
The electric bass also has plenty of blackness and good spread, allowing it to be the starting point for contrast.
The low-frequency impression is quite similar to the SOLID BASS series, as the midrange structure is similar to the tuning style preferred by audio-technica. Personally, I like the tendency of the sound; it can have a strong habit of being hot.
Unlike the neutral tuning of the higher-end EAH-AZ60, the midrange of the EAH-AZ40 has a much less colorful and chic depth acoustic structure.
The sound balance is similar to that of audio-technica's SOLID BASS series models, so it is a sound that fits well with my ears as an audio-technica fan, especially as I prefer the SOLID BASS series sound.
Overall, the mid-range is not very colorful, sounding subdued and mature, and is gentle to the ear, with a sense of maturity and elegance that seems to be popular with audio-technica fans. In fact, in terms of low-frequency quality, the EAH-AZ40 outperforms audio-technica's flagship ATH-TWX9, and in the midrange, the ATH-TWX9 has higher resolution, more color and luster, and a smoother ear feel, but in detail, the EAH-AZ40 wins.
However, the EAH-AZ40's high frequencies are a bit rough and choppy, while the ATH-TWX9 sounds more natural with an emphasis on smooth connections and a more premium sound.
I also have the EAH-AZ70, so I actually have a complete set of Technics true wireless earphones, but I think that the audio-technica products are still a step ahead of Technics in terms of overall sound production. It is natural to feel the difference between audio-technica, which is consistently one of the top acoustic brands, and Technics, which is rebuilding its brand in a hasty manner. However, I am a fan of audio-technica, so I would like you to take that into consideration.
However, I haven't heard the Panasonic brand, so I can't say anything too great about it without hearing that one.
Highs / Treble
The high frequency range seems to be tuned for definition. Extension is much lacking.
The high-frequency adjustment Technics made to the EAH-AZ40 seems a bit extreme. The detail is very good, but the grinding sound can be quite irritating to some people. Also, the cymbals are jangly and sound very cheesy.
The only impression I have is that of a vulgar high frequency range that is totally out of proportion to the atmosphere of the refined midrange that has been created with a sense of quietness. If the high frequencies are choppy in a bright sound design, it is not so noticeable, but if the high frequencies are choppy in a dark sound design, it will be noticeable. In general, this is not a good practice.
After listening to the careful adjustments that audio-technica showed with the ATH-TWX9, it sounded even more like poor sound production.
Sound quality general comment
Unlike the EAH-AZ60, EAH-AZ40 uses a common PEEK diaphragm, so it does not have the poor resolution of the EAH-AZ60. Low frequencies are very good.
Sound quality features
- Elegant and chic
- Sound with depth
- Excellent detail
- Strong quirks
- Unnatural texture expression
- Poor coloration and subdued
- High frequencies are noisy and choppy
The Technics EAH-AZ40 has a typical V-shaped type sound with deep lows and aggressive highs. The low-frequency quality is quite high and may be an attractive option for low-frequency enthusiasts.