Home Headphones Sennheiser Hd 660S2 Vs. Adidas Rpt 02 Sol

A Review By Comparison of the Sennheiser Hd 660S2 Vs. Adidas Rpt 02 Sol

Last updated on Oct 19, 2023   7 minute read
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Adidas RPT 02 Sol

Adidas RPT 02 Sol

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Reasons why you might like the Adidas RPT 02 Sol

Overall Score 4.9 Represents average audio ecosystem compatibility score.

  • Weight of 256 g
  • Battery Life of 80 hours
  • Can Be Used Wirelessly
VS
Sennheiser HD 660S2

Sennheiser HD 660S2

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Reasons why you might like the Sennheiser HD 660S2

Overall Score 2.8 Represents average audio ecosystem compatibility score.

  • Weight of 260 g

A summary of the review by feature comparison

Category Features Adidas RPT 02 Sol Sennheiser HD 660S2
DESIGN weight 256g 260g
has a detachable cable
ingress protection (ip) rating ipX4
can be folded
has a tangle free cable
has an open-back design
sweat resistance
cable length 1.8meters
has an over-the-ear foam
has an on-ear foam
has stereo speakers
SOUND QUALITY has passive noise reduction
lowest frequency 20hz 8hz
highest frequency 20,000hz 41,500hz
sound pressure level 105db/mw 104db/mw
driver unit size 45mm 38mm
impedance 32ohms 300ohms
POWER battery life 80hours
charge time 2hours
has a battery level indicator
has a rechargeable battery
CONNECTIVITY can be used wirelessly
has usb type-c
has aac
maximum bluetooth range 10meters
has a 3.5mm male connector
MICROPHONE number of microphones 1only
has a noise-canceling microphone
EXTRAS has a mute function
control panel placed on a device
can be used as a headset
travel bag is included
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A breakdown of the review per specifications

Design

Weight

Adidas RPT 02 Sol 256g
Sennheiser HD 660S2 260g

Sennheiser HD 660S2 have a weight of 260g, these weigh below 320g, which we consider as the highest average a headphone should weigh for comfort during long use. We take in account a lower weight better for the reason that lighter devices are more comfortable to move with.

The Adidas RPT 02 Sol, at 256g are lighter than the Sennheiser HD 660S2 with a difference -4g

Has A Detachable Cable

Adidas RPT 02 Sol
Sennheiser HD 660S2

Detachable cables are cables that have connectors on both ends. One end goes into your headphone earpieces, while the other end is inserted into an audio source. Some new headphones, and not just the expensive ones, are coming with detachable cables, Sennheiser HD 660S2 are one of those.

Ingress Protection (Ip) Rating

Adidas RPT 02 Sol ipX4
Sennheiser HD 660S2

Ingress protection ratings refer to the level of protection offered by an electrical enclosure, against solids and liquids. The letters 'IP' are followed by two numerals The first number of the IP rating refers to protection against solids say dust, while the second refers to protection against liquid.

Scoring IPX4, the Adidas RPT 02 Sol's rating is read as, the first number of X denotes that no data available to specify a protection rating, and the second number of 4 means that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes.

Can Be Folded

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol are foldable, which makes them more portable. Foldable headphones are easier to transport and take up less storage space.

Has A Tangle Free Cable

Adidas RPT 02 Sol
Sennheiser HD 660S2

Twisted headphone cables can be a great source of annoyance and inconvenience, Sennheiser HD 660S2's cable is designed to minimize tangling. Constant twisting of the cables can also lead to bends in the copper wires, affecting sound quality, or completely damaging your headphones.

Adidas RPT 02 Sol too have a cable designed to help prevent tangles.

Has An Open-Back Design

Adidas RPT 02 Sol
Sennheiser HD 660S2

Headphones that are designed to allow air to pass through their ear cups from the rear of the speaker driver unit are known as open-back. This design provides a very natural and accurate sound, Sennheiser HD 660S2 have this kind of design which means that resonances and low-frequency that tend to build up caused by the rear enclosure are no longer a concern.

Sweat Resistance

Adidas RPT 02 Sol
Sennheiser HD 660S2

By sweat resistance we mean that the wireless earbuds are protected in the presence of low-pressure water jets at any angle, this is determined by the IP Rating of the earbuds. Based on the ingress protection rating of the Adidas RPT 02 Sol they do have sweat resistance

Cable Length

Adidas RPT 02 Sol
Sennheiser HD 660S2 1.8meters

A long cable ensures more freedom of movement, but remember that every cable based on the conducting material used has a certain amount of parasitic resistance, inductance, and capacitance. How much depends on the length and construction. Sennheiser HD 660S2 comes with a 1.8meters cable.

Has An Over-The-Ear Foam

Adidas RPT 02 Sol
Sennheiser HD 660S2

Over-ear headphones have larger earpads that fit around your entire ear Sennheiser HD 660S2 have a comfortable full-size form with earcups that fully enclose your ears. This design is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors.

Has An On-Ear Foam

Adidas RPT 02 Sol
Sennheiser HD 660S2

On-ear headphones have smaller earpads that sit on top of your ears, this Adidas RPT 02 Sol comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.

Has Stereo Speakers

Adidas RPT 02 Sol
Sennheiser HD 660S2

Sennheiser HD 660S2 have stereo speakers, devices with stereo speakers deliver sound from independent channels on both left and right sides, this creates a richer sound and a better listening experience.

Both Adidas RPT 02 Sol and Sennheiser HD 660S2 have stereo speakers

Adidas RPT 02 Sol
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Sound Quality

Has Passive Noise Reduction

Adidas RPT 02 Sol
Sennheiser HD 660S2

Passive Noise Cancellation uses well-designed ear cups to seal out environment noise. This is used for both in-ear earphones and over-ear headphones where the headphone itself will keep surrounding noise out. The Sennheiser HD 660S2 sits tightly in place, creating an acoustic seal that reduces background noise and prevents your music from leaking out.

Lowest Frequency

Adidas RPT 02 Sol 20hz
Sennheiser HD 660S2 8hz

Low-frequency response measures if and how well an audio device reproduces low audible frequencies and if it makes any changes to the signal while at it. Sennheiser HD 660S2's lowest frequency is at 8Hz, the lower the low-frequency response, the stronger and juicier the bass.

Adidas RPT 02 Sol's lowest frequency is at 20Hz, this means that Adidas RPT 02 Sol got a juicier bass than the Sennheiser HD 660S2

Highest Frequency

Adidas RPT 02 Sol 20,000hz
Sennheiser HD 660S2 41,500hz

High frequency response measures if and how well an audio component reproduces high audible frequencies and if it makes any changes to the signal on the way through. Sennheiser HD 660S2's highest frequency is at 41,500Hz, the higher the high-frequency response, the clearer and crispier the treble.

Adidas RPT 02 Sol's highest frequency is at 20,000Hz, this means that Sennheiser HD 660S2 got a clearer and crispier treble than the Adidas RPT 02 Sol

Sound Pressure Level

Adidas RPT 02 Sol 105db/mw
Sennheiser HD 660S2 104db/mw

Sound pressure is the average variation in atmospheric pressure caused by the sound, the sound level .i.e how loud something is can be perceived differently by different people so we need to have the means to get an objective measurement of sound level expressed in numerical terms.

The sound pressure level, SPL, is the pressure level of a sound, measured in decibels, dB, Sennheiser HD 660S2's measurement is 104dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

Adidas RPT 02 Sol's sound pressure level measurement is 105dB/mW.

Driver Unit Size

Adidas RPT 02 Sol 45mm
Sennheiser HD 660S2 38mm

The driver unit is basically a mini speaker that produces sound in the device, its size dictates the loudness of the headphone. Sennheiser HD 660S2 driver unit is 38mm in diameter, bigger drivers are more powerful and can produce better bass.

Adidas RPT 02 Sol driver unit is 45mm in diameter, making them have a larger driver unit than that of Sennheiser HD 660S2 by 7mm , as many tend to believe that driver units of a bigger size automatically produce better sound quality.

However, large drivers usually have difficulty reproducing high frequencies so it's true that, larger drivers can generate louder sound, but this does not mean that they deliver better sound.

Impedance

Adidas RPT 02 Sol 32ohms
Sennheiser HD 660S2 300ohms

Defined as the device's resistance to the electromagnetic current, as electricity flows through a wire, it experiences electrical resistance that counters the flow of current. The resistance of a wire is measured in ohms. Sennheiser HD 660S2's impedance is 300Ohms, the lower the impedance, the easier it is to get higher volume and requires less power.

Adidas RPT 02 Sol's impedance is 32Ohms. The impedance of earbuds is the electrical resistance of the driver unit present on the inside.

Power

Battery Life

Adidas RPT 02 Sol 80hours
Sennheiser HD 660S2

If your headphones play wirelessly, cancel ambient noise, or enhance your listening experience with active features, their battery life will reduce over time. The device's battery life is given by the manufacturer, with longer battery life, you get to use it for longer and have to charge the device less often. Adidas RPT 02 Sol's battery life is 80 hours

Charge Time

Adidas RPT 02 Sol 2hours
Sennheiser HD 660S2

It takes 2 hours to fully charge the Adidas RPT 02 Sol's battery. It is recommended to fully charge the battery before using the headphones for the first time or when they have been unused for extended periods.

Has A Battery Level Indicator

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol have a battery level indicator, an indicator shows you when the device has a low battery. The battery indicator lights indicate the charging status of your headphones.

Has A Rechargeable Battery

Adidas RPT 02 Sol
Sennheiser HD 660S2

A rechargeable battery is a type of electrical battery that can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use. Adidas RPT 02 Sol's battery can be recharged and used over again.

Adidas RPT 02 Sol
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Connectivity

Can Be Used Wirelessly

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol can be used wirelessly, wireless devices allow users more freedom of movement.

Has Usb Type-C

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol support USB TYPE-C, an industry-standard connector for transmitting both data and power on a single cable. The USB-C plug is now part and parcel of most current laptops, phones, and tablets, it features reversible plug orientation and cable direction.

Has Aac

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol support AAC, a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Because it uses psychoacoustic modeling, it can provide better results than other codecs at a similar bit rate.

Maximum Bluetooth Range

Adidas RPT 02 Sol 10meters
Sennheiser HD 660S2

Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances. The Adidas RPT 02 Sol can connect at a 10meters distance via Bluetooth or infrared to another device.

Has A 3.5Mm Male Connector

Adidas RPT 02 Sol
Sennheiser HD 660S2

Being an industry standard audio plug, a standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards. This means that it is commonly used in stereo headphones to your phone or connecting your phone to an external amplifier, sound bars, your car radio, etc. Sennheiser HD 660S2 has this connector giving it a wider range of connectivity with most of the sound devices out there. All plugs have at least a tip and sleeve with the number of rings that stand as a differentiating factor.

Microphone

Number Of Microphones

Adidas RPT 02 Sol 1only
Sennheiser HD 660S2

Adidas RPT 02 Sol have only 1 microphones, more microphones result in better sound quality and enable the device to filter out background noise.

Has A Noise-Canceling Microphone

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol use a noise-canceling type of microphone, these microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.

Adidas RPT 02 Sol
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Extras

Has A Mute Function

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol have a mute function, they have an option to mute/unmute a conversation directly from the device. The mute function means that you unilaterally turn off the microphone, but you can still hear the other party's voice.

Control Panel Placed On A Device

Adidas RPT 02 Sol
Sennheiser HD 660S2

There is a control panel on the Adidas RPT 02 Sol body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.

Can Be Used As A Headset

Adidas RPT 02 Sol
Sennheiser HD 660S2

Adidas RPT 02 Sol can be used as a headset. A headset is one headphone or pair with a built-in microphone. Headsets can be used for apps that require communication i.e. Zoom, Google Meet, Skype, games with voice chat, mobile phones, etc.

Travel Bag Is Included

Adidas RPT 02 Sol
Sennheiser HD 660S2

Carrying headphones without a case, or putting them in bags without a casing can easily put them at risk of getting damaged. The Sennheiser HD 660S2 come with their own special case or pouch, which is useful for safe transportation.

Adidas RPT 02 Sol too have a travel bag or case included.

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