AKG HEARO 777 QUADRA Specifications, Tests and Review

Headphone type
On-ear
Connectivity
Wireless
Frequency Response
18 - 24000 Hz

Complete technical specifications, details, expert ratings and review of AKG HEARO 777 QUADRA. Find out how your chosen headphones stack up against the competition and whether they are the ones that best meet your expectations with the headphone comparison feature.

AKG HEARO 777 QUADRA Full Specifications and Details

design and dimensions sound quality cable battery and charging wireless link connections

DESIGN AND DIMENSIONS AKG HEARO 777 QUADRA
Product Type Headphones - wireless
Recommended Use Home audio
Bluetooth Range (Operating Distance) 100 m Better than 81 % of headphones rated.

​​The AKG HEARO 777 QUADRA are wireless headphones. The wireless connection allows absolute freedom of movement and with that increases the comfort of using the headphones. This feature is very popular, especially when using headphones every day. The limiting factor of wireless headphones is a certain delay in the sound transmission between the source and the headphones (almost indistinguishable for a normal user), as well as the need to charge them (in the case of wired headphones, the headphones are recharged by connecting the cable itself). The maximum range of the headphones is up to 100 m. This range represents the distance from the sound source at which the headphones with wireless sound transmission can be used. However, the maximum range may be affected by obstacles such as walls or people, etc.

The headphones are designed as on-ear. On-ear headphones are generally lighter. However, their design has fewer isolation capabilities, and therefore, for example, more sound can be let in and out compared to around-ear headphones.

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SOUND QUALITY AKG HEARO 777 QUADRA
Headphones Form Factor On-ear
Headphones Technology Dynamic
Connectivity Technology Wireless
Sound Output Mode Stereo
Built-in Decoders Dolby Pro Logic
Frequency Response 18 - 24000 Hz Better than 82 % of headphones rated.
Total Harmonic Distortion (THD) 1.0%

The sound quality can be affected by many factors. When it comes to frequency range, the wider it is, the more detail you will hear when listening. However, the range a person can perceive is highly individual. The average person is able to perceive frequencies in the range of 16 to 20 000 Hz. So the most common frequency range you will see on the market is 20 to 20,000 Hz. Lower frequencies up to approximately 256 Hz are considered bass frequencies. Therefore, the lower the bottom value is, the better the headphones will reproduce bass. Conversely, values from approximately 2 048 Hz upwards are treble. That is why headphones with a high upper value will provide a much more accurate reproduction of high notes. AKG HEARO 777 QUADRA offers a frequency range of 18 - 24000 Hz. Total harmonic distortion is one of the parameters you will come across and usually includes the average value of the distortion when reproducing all frequency bands. This parameter is not critical when choosing headphones, but it is important to remember that higher harmonic distortion can negatively affect sound quality. In case of these headphones, the total harmonic distortion is Audio Output | Total Harmonic Distortion.

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CABLE AKG HEARO 777 QUADRA
Cable Type 2 x audio cable - 1.5 m
BATTERY AND CHARGING AKG HEARO 777 QUADRA
Battery Type 2 x battery - AAA type - rechargeable - Nickel Metal Hydride
Battery Capacity 600 mAh Better than 67 % of headphones rated.
Battery Life 20 hour(s) Better than 71 % of headphones rated.
Power Device Power adapter - external
Included Qty 2

These headphones have a battery capacity of 600 mAh. In terms of headphone battery life as a significant factor in the purchase decision, it depends on what you want to use the headphones for and potentially how often you will be able to recharge them. Headphones with up to a few hours of battery life are more suitable for home use as they will require more frequent charging. Headphones with a battery life of around 10 hours or more are already more suitable for commuting and shorter journeys. However, nowadays you can also find headphones on the market that have a battery life in the higher tens to hundreds of hours. In this case, you do not have to worry about your headphones simply running out of power on longer journeys, and you will not have to deal with constant recharging. The battery life of the AKG HEARO 777 QUADRA reaches up to 20 hour(s).

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CONNECTIONS AKG HEARO 777 QUADRA
Connector Type Audio line-in (RCA x 2)
SPDIF input (mini-phone stereo 3.5 mm)

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