SOL REPUBLIC Relays Sport – Review



| Dynamic Driver |


? SOL REPUBLIC Relays Sport, an uniquely designed headphone for active people.

The SOL REPUBLIC Relays Sport feature a single dynamic driver, rounded housings and a very special secure fitting system.

As soon as you see photos of the SOL REPUBLIC Relays Sport you will notice a colorful wheel-like shape surrounding the housings. This is the secure fitting system of SOL REPUBLIC that offers a 360 degree rubberized, flexing area of contact with the ears that increases their stability.

If you prefer wireless headphones, the SOL REPUBLIC Relays Sport are also manufactured in a Bluetooth version called, SOL REPUBLIC Relays Sport Wireless.

You can buy the SOL REPUBLIC Relays Sport in:

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SOL REPUBLIC Relays Sport Review

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SOL REPUBLIC Relays Sport weight in Ounces and SOL REPUBLIC Relays Sport weight in grams.

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Accessories & Packaging

The SOL REPUBLIC Relays Sport unboxing results in a sporty pouch, 4 pair of eartips (in an organizing module) and a cable clip. Everything is packed in a nicely designed box.



Bass & Sub Bass

The SOL REPUBLIC Relays Sport bass is highly punchy and fairly deep, with a clearly mid-bass centered and boosted response that gives them a fun and energetic sound but also boomy and mostly bassy sound signature.

Applying an EQ, there is an important addition of depth and punch.

When putting the SOL REPUBLIC Relays Sport through out our extreme basshead tests, they managed to handle 30% of a Fiio amplifier maximum power (Fiio E12 Mont Blanc) with a huge empowering of it’s bass but no basshead rumble nor impact and far from reaching the crazy level of the Sony MDR-EX800st / Sony MDR7550, Pioneer SE-CX8, Sony MDR-EX650, Pioneer SE-CX7, Beats urBeats, Fidue A31S, SENFER EN900, RevoNext QT3, Sennheiser CX300-II, Symphonized NRG 3.0.


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Mids & Vocals

The SOL REPUBLIC Relays Sport mids have substantial mid-bass bleed, very warm mids but noticeably congested lower mids that affects also their male vocals. Despite the congestion they do not sound distant.

Higher mids are rolled-off resulting in less crispness than many other earphones but also smoother and non-harsh at all.

With an EQ there is a bit of mid-bass reduction and vocals enhancement but they will struggle to level up to normally acceptable mids sound quality.



Highs & Treble

The SOL REPUBLIC Relays Sport highs have a general darkening and muddiness to their sound signature generated by their overly boosted mid-bass and this affects their highs too – resulting in a dark and detail-less response.

Such a recessed degree gives them fatigue-free peaks.

An EQ makes a noticeable increment of detail and some extra brightness is added, still their highs will remain dark and poorly detailed.




Sound Leak

The sound leaking out of the SOL REPUBLIC Relays Sport is slightly higher than most average headphones, this means that they will be hearable by nearby people, in less noisy situations.


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Sound Isolation

The sound isolation provided by the SOL REPUBLIC Relays Sport is stronger than many normal earphones. If you are willing to crank up the volume (substantially), they will even offer a near absolute isolation.


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Their unique design and smart securing system that acts as earwings (that SOL REPUBLIC calls FREEFLEX™ SECURE FIT) is efficient and allows a true secure fit that can withstand any sports activities. Furthermore, the brand rates them as sweat and water resistant.

The overall design, lightweight and slim profile allows the SOL REPUBLIC Relays Sport to offer an extra secure and comfortable fit that also sits flush with the ears – making them a good option for under the helmet use.


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Response to Equalization

The response to EQ of the SOL REPUBLIC Relays Sport was not very efficient with mostly increment of their bass response and detail in their highs.


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Scores Scores

SOL REPUBLIC Relays Sport Scores

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Frequency Response (raw)

SOL REPUBLIC Relays Sport Frequency Response Curve

SOL REPUBLIC RELAYS - Frequency Response Curve
SOL REPUBLIC RELAYS – Frequency Response Curve

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SOL REPUBLIC Relays Sport Technical Specifications


Driver UnitDD
Power CapacityN/A
Impedance16 ohms
Frequency Response20-20,000Hz
CordY-type, round cord
Cord Length1.2m
PlugStereo mini plug
WeightApprox. 20g
Supplied Accessories3x Earphone tips

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SOL REPUBLIC Relays Sport Photos

We highly discourage anyone from trying to apply our testings to your own earphones, the risk of damaging or permanently breaking your iems is absolutely probable to happen. With our standardized equalization and amplification tests we push the limits of the earphones to the extreme. If anyway you decide to do so, we cannot be held responsible of the damage done to your equipment. Do it at your own risk.






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