7Hz Legato Review

Today we review the budget-fi 7Hz Legato, a two-dynamic driver IEM, selling for $109 USD. Find out everything about it on Headfonia.


Disclaimer: 7Hz Legato sample is provided by HiFiGo. You can purchase the Legato from here.


7Hz was founded in 2012 as a team of engineers and audio enthusiasts who came together to test their skills in the realm of audio. By focusing on quality drivers and using precise circuitry design, 7Hz aims to deliver the most efficient setups that shine the drivers’ natural abilities. 7Hz stands for the Theta Wave, a frequency that is often associated with meditation and harmony. 

The brand is renowned for its Timeless & Zero models, and they have a distinctive design language. Most of their IEMs possess a round, circular shape which stands apart from other ChiFi models. I think we’re going to see more of their models soon.

7Hz Legato

The Legato is a dual dynamic driver Universal IEM. It has a 12mm Woofer Driver+6mm Tweeter/Midrange Driver for a Dual Dynamic Driver setup. 7Hz claims the Legato has 8 Japan-made Audio-grade Tantalum Capacitors for a unique crossover design.

Moreover, the IEM has a CNC Aviation-grade Aluminum Case, and a 2-pin 0.78mm OCC+Silver-plated OCC Detachable Cable. These are pretty good features for a 109$ priced IEM


Legato comes in compact packaging. When you open it you see a carrying case, which acts as the whole package. It is very nice with soft inner material to protect the IEMs. Inside you have ear tips, paperwork, and replaceable nozzle filters which is a thoughtful addition. Overall a good package for the price indeed.

The carrying case itself has a good quality zipper around, with the logos of “Legato” and “7Hz” with golden accents. I didn’t expect to get this kind of a carrying case. Usually, budget-fi IEMs come with a very small case or nothing at all. I liked the packaging as a whole and it surpassed my expectations. This is the first ever 7Hz product that I review, so I don’t know about its other models. But I hope they keep this up.,

Design & Build

The 7Hz Legato has an eye-catching and slick design. The aluminum casing helps in that regard, so the IEM looks very premium. The face plate, in particular, looks like a brushed aluminum material, which is very nice. I liked the fact that this budget model doesn’t have plastic at all. One might say that the design looks ordinary in this one, and while I can agree with that, it still looks very sharp and premium.

The chassis has two parts assembled. The assembly is not seamless as you see a thick line between the two, but the quality is reasonably good for the money. The nozzles are unibody and that’s another good point in the design. They also have a filter on top, which you can change if something happens. 7Hz provides nozzle filters, four of them to be exact.

The cable has good material quality for the price. There’s a good tensile strength and I think it should hold on for a long time. The braiding of the cable is on the loose side a bit, but it’s overall very soft and lightweight. The 2-pin connectors sit tightly.


The fit of the Legato is reasonably good. The supplied tips have good enough quality, and the shape of the IEM isn’t problematic for a snug fit. However, in my particular case, it’s not a very small or compact chassis, so I can’t say the fit is perfect.

The chassis protrudes from your ears quite a bit, which is understandable because of the two dynamic drivers inside each shell. Overall, it’s not a low-profile fit at all, be aware. On the positive side, the cable is very light so that doesn’t produce any additional problems for comfort. It’s a very soft and non-microphonic cable. 

Isolation-wise things are okay. The Legato has a vent consisting of three dots on the shells. Despite that ventilation, the isolation is pretty good with the right ear tips. I recommend having a deep fit with this one since the nozzle part goes deeper than most budget IEMs. That works better for more passive isolation.

Page 2: Sound Quality
Page 3: Technical Performance, Comparisons, Conclusion
4.9/5 - (7 votes)

A keen audiophile and hobby photographer, Berkhan is after absolute perfection. Whether it is a full-frame camera or a custom in-ear, his standpoint persists. He tries to keep his photography enthusiasm at the same level as audio. Sometimes photography wins, sometimes his love for music takes over and he puts that camera aside. Simplistic expressions of sound in his reviews are the way to go for him. He enjoys a fine single malt along with his favourite Jazz recordings.

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