Today I am reviewing the KZ ED7 headphones. These headphones are made of bamboo and they're very cheap as well. Check out my review on YouTube at the end of this post, or read the text review below.
Overview and Design
The ED7 was the first KZ earphone that I've ever purchased. This was back in 2016, and I bought them for $6-$7 from AliExpress. The ED7 actually comes in two different sizes (small and medium) and I bought the medium ones.
This earphone is certainly unique in terms of build -- it's made entirely of bamboo. The nozzles and the surrounding area are made of metal, which is always welcome. Does the bamboo design influence the sound quality? You'll find out in the next paragraph, but let me continue...
The ED7 may look like an open-back earphone due to the grills on the back, but this is sadly just a cosmetic effect. If you look closely, the earphones are completely closed back save for a small hole in the center, whose purpose is unknown, at least to me.
The ED7's cable is the old rubbery KZ cable, which is used on all of their older models. Recently they've made the switch to a braided cable which is a good choice on their part.
The sound quality of the ED7 is decent. Keep in mind that this is a budget earphone so there isn't much room for criticism.
The overall sound signature is dark-sounding, and sound is a bit muffled, I thought. Highs are clear, but not crisp or bright. Vocals sound a bit recessed.
The bamboo design actually makes the ED7 sound slightly airy and light, but it isn't so noticeable to the average ear. And since this is a closed-back earphone, you won't get a wide or open sound out of the ED7.
The bass is deep, not anything near the depth of the ES3, but it is deep and slightly muddy. With an equalizer, the overall sound improves greatly. In my other headphone reviews, I have mentioned that I always use an equalizer, be it on my phone or on my laptop. Specifically, I use James DSP on my phone along with Ainur Sauron, and on my Mac, I use Boom 2. Anyway, using the ED7 with an equalizer brings out more detail.
The ED7 is all right in terms of comfort. The earphones aren't very heavy due to their light material, but they may be too big for some people. If you're not sure, just order the "small" size. The price is about the same, anyway. These aren't the most comfortable earphones I've ever worn, but they seal well and don't fall out of your ears.
The ED7 isolates noise pretty well. They're not an open-back earphone, so if you keep the volume at a moderate level, people probably won't hear what you're listening to. The ED7 should be good for listening to music in public.
The ED7 is well designed, made of bamboo and a bit of metal as well. I was disappointed to see that the grills on the back are fake, but since this is a budget earphone, again, I can't complain.
Sound quality is great for the price. Bass may be a bit muddy, but it's acceptable. Highs are clear, vocals may be recessed in certain songs. The ED7 is certainly not a bad sounding earphone, and for the price, you won't find many like it.
Comfort is good. The ED7 fits well in your ears, even with the stock rubber tips, and is pretty light.
Noise isolation is also good, being a closed-back earphone, the ED7 isolates noise well. You will hear some outside noise but it's more than acceptable.
Overall, I would rate the ED7 a fitting 7/10. They're not the best KZ model I've tested, but you can't go wrong with the ED7.