Mixcder E9 Wireless Headphones Review

The Mixcder E9 have a sleek style, thanks to the metal-looking cup design. These over-ears are fairly bland otherwise since they only come in black. The cups are rather large as well. They're bulky but, on the upside, the padding is thick and comfortable.

The Mixcder E9 are comfortable headphones that you can wear for a while. They aren’t too heavy, and the padding of the cups is good and comfortable. The headband design resembles the Bose QuietComfort 35 II/QC35 II Wireless 2018 and is nicely padded. The cups could be slightly deeper but should be large enough for most ear shapes and sizes. The headphones are a bit bulky but don’t clamp too much, and the cups have a good range of motion, which is great.

These headphones have a decent control scheme. The physical buttons are large and clicky, making them easy to use. You can also use the power button to play/pause your music and take calls as well. You can easily raise or turn down your volume, and there's an audio cue when reaching maximum or minimum volume. Holding the volume buttons will skip tracks forward and backward. However, you need to be quick if you want to go to the previous tracks, as it might just restart your song instead. The power button could also be in a better position. On the left cup, you also have a dedicated ANC switch that's independent of your power, so be sure to turn it off after powering off the headphones.

Like most over-ears, the Mixcder E9 aren't the most breathable option. Due to their design, they trap heat inside the ear cups and will likely make you sweat more than usual when working out. These are not the best option for sports, but you shouldn’t have any issues for casual listening.

The Mixcder E9 are quite bulky over-ears, but thankfully, you can fold them in a more portable design, which is easier to carry around. Their cups also swivel to lay flat, making it easier to slide into a bag or hang them around your neck. They also come with a nice hard case for when you’re on the move.

The Mixcder E9 come with a nice hard case. It's a bit thin and feels cheaper than some other models, but feels durable. It provides the headphones decent protection against scratches, drops, and water.

The Mixcder E9's build quality is decent. The hinges are good and don’t feel like they’ll break, and the headband is reinforced by a thin metal plate. However, the overall build is a bit plasticky, and the ear cups are covered in cheap-feeling faux leather material.

The Mixcder E9 are decently stable but won’t be the best option for sports. They stay on the head fairly well, but enough head movement can make them fall easily. You shouldn't use them for running, but thanks to their wireless design, they get rid of the risk of getting a cable stuck or hooked on something and yanking the headphones off your head.

• Mixcder E9 headphones
• 1/8" TRS audio cable
• Micro-USB charging cable
• Carrying case
• Airplane adapter
• Manuals

The Mixcder E9's frequency response consistency is very good. Like some other similar noise cancelling headphones, their ANC system seems to help with bass consistency. Some people with glasses might have a drop in bass, though, especially if there’s a break in the seal.

The Mixcder E9's bass performance is outstanding. It's flat and well-balanced, resulting in adequate thump, rumble, and boom in your mixes.

The Mixcder E9 have a very good mid-range performance. The response is well-balanced throughout the range. It results in an accurate reproduction of vocals and lead instruments. However, there’s a small overemphasis in the low-mid, which can clutter vocals and leads a bit, though this won’t be very audible. There’s also a dip in high-mid, which negatively affects the intensity and projection of instruments.

The Mixcder E9's treble performance is sub-par. The response is quite uneven. Some frequencies are under our curve, while others show a small overemphasis. Overall, the treble lacks detail and brightness, especially in the low-treble.

The Mixcder E9's stereo imaging is excellent. Their weighted group delay is very low, which is good. The group delay graph also shows that the entire response is below the audibility threshold. This ensures a tight bass and a transparent treble reproduction. Also, the L/R drivers of our unit were well-matched in frequency, amplitude, and phase response. This is important for the accurate placement and localization of objects (voices, instruments, video game effects) in the stereo image. Note that these results are only valid for our unit, and yours may perform differently.

The Mixcder E9's soundstage is disappointing. The graph shows a good amount of pinna interaction and a decent level of accuracy. There’s also a decent PRTF distance, which results in a wide soundstage. However, due to the closed-back design of these over-ears, the soundstage won’t feel very natural and will be situated inside the listener’s head rather than in front.

The Mixcder E9's noise isolation performance is good. It does a good job against bass frequencies, where the rumble of engines sit, making them a viable option for commuting and traveling. They also do a decent job against ambient chatter, which can be helpful in an office setting. Against high frequencies like S and T sounds and the noise coming from an A/C system, they do a pretty good job at blocking out noise.

The Mixcder E9's leakage performance is decent. The leakage sounds fuller and more comprehensible than that of in-ears and earbuds. However, the overall level of leakage is not too loud. This shouldn’t be an issue in most situations unless you blast music in a very quiet environment.

The recording quality of the Mixcder E9’s integrated mic is mediocre. The recorded/transmitted speech sounds thin, noticeably muffled, and lacking in detail. This won’t be the best option for phone calls.

The Mixcder E9's microphone doesn’t fare well in noisy environments. It struggles to separate speech from ambient noise and will be better suited for quiet environments.

The Mixcder E9 has about 18 hours of battery life with ANC on, which is good, but slightly disappointing as it's below the 24 advertised hours of continuous playback. With ANC off, the manufacturer mentions a 30-hour battery life. They also take about 3 hours to charge, which is slightly longer than most headphones but shouldn’t be an issue if you just charge your headphones at night. You can also use them while they're charging or wired when they're completely dead, which is very useful.

Unfortunately, this pair of headphones doesn’t have a companion app with dedicated customization options.

The Mixcder E9 are Bluetooth-compatible, but they're on the older 4.0 version. They don't support multi-device or NFC pairing, which is disappointing, and their latency is fairly high on all devices. If you want a pair of similarly-performing headphones that also support aptX-LL for a low latency connection, check out the TREBLAB Z2 Wireless.

You can use the included audio cable to use the Mixcder E9 wired. You’ll get audio when connecting the headphones to a headphone jack, regardless of the console or device. However, you can’t use the integrated mic when the audio cable is plugged in.

These headphones don’t have a base/dock.