43points

Koss Porta Pro KTC

51points

Koss QZ900

Koss Porta Pro KTC
Comparison winner
Koss QZ900
vs
vs

60 facts in comparison

Koss Porta Pro KTC vs Koss QZ900

Koss Porta Pro KTC
Koss QZ900

Why is Koss Porta Pro KTC better than Koss QZ900?

  • 5Hz lower low-frequency
    ?

    15Hzvs20Hz
  • 5000Hz higher high-frequency
    ?

    25000Hzvs20000Hz
  • 1dB/mW higher sound pressure level
    ?

    101dB/mWvs100dB/mW
  • Can be used as a headset
    ?
  • 151g lighter
    ?

    67gvs218g
  • Has an on-ear form
    ?

Why is Koss QZ900 better than Koss Porta Pro KTC?

  • Has passive noise reduction
    ?
  • Has active noise cancellation (noise control)
    ?
  • Has an over-the-ear form
    ?
  • Has a detachable cable
    ?
  • 28 Ohms lower impedance
    ?

    32 Ohmsvs60 Ohms
  • Has a removable battery
    ?

Price comparison

Koss Porta Pro KTC

ProductStorePrice
Koss Porta Pro KTC AmazonKoss Porta Pro KTC Ultimate Portable Hea...Koss Porta Pro KTC Ultimate Portable Headphone for iPod, iPhone and iPad
Amazon logo
$79.99
Koss Porta Pro KTC AmazonKoss Porta Pro On Ear Headphones with Ca...Koss Porta Pro On Ear Headphones with Case, Black / Silver
Amazon logo
$34.99
Koss Porta Pro KTC AmazonKoss KTXPRO1 Titanium Portable Headphone...Koss KTXPRO1 Titanium Portable Headphones with Volume Control, Single, Standard Packaging
Amazon logo
$19.29
Koss Porta Pro KTC AmazonKoss Porta Pro Limited Edition Black Gol...Koss Porta Pro Limited Edition Black Gold On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Includes Hard Carrying Case, Wired with 3.5mm Plug, Black and Gold
Amazon logo
$59.99
Koss Porta Pro KTC AmazonKoss SportaPro Stereo Headphones, Standa...Koss SportaPro Stereo Headphones, Standard Packaging
Amazon logo
$59.83
Koss Porta Pro KTC AmazonKoss Porta Pro with Microphone and Remot...Koss Porta Pro with Microphone and Remote On-Ear Headphones, in-Line Microphone and Touch Remote Control, Collapsible Design, Wired with 3.5mm Plug, Black and Silver
Amazon logo
$59.99
Koss Porta Pro KTC AmazonKoss KPH30iRB On-Ear Headphones, in-Line...Koss KPH30iRB On-Ear Headphones, in-Line Microphone and Touch Remote Control, D-Profile Design, Wired with 3.5mm Plug, Rhythm Beige
Amazon logo
$29.99
Koss Porta Pro KTC AmazonKoss Porta Pro Wireless Bluetooth On-Ear...Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote, Adjustable Headband with Multi-Pivoting Ear Plates, Black
Amazon logo
$117.40
Koss Porta Pro KTC AmazonKoss UR42iW Over-Ear Headphones, in-Line...Koss UR42iW Over-Ear Headphones, in-Line Microphone and Touch Remote Control, Detachable Dual Choice Entry Cord, Wired with 3.5mm Plug, White
Amazon logo
$29.99
Koss Porta Pro KTC AmazonKoss BT540i Full Size Bluetooth Headphon...Koss BT540i Full Size Bluetooth Headphones, Black with Silver Trim
Amazon logo
$119.99

Design

1.has stereo speakers
Koss Porta Pro KTC
Koss QZ900
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
2.has an over-the-ear form
Koss Porta Pro KTC
Koss QZ900
Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
3.has a detachable cable
Koss Porta Pro KTC
Koss QZ900
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
4.sweat resistance
Koss Porta Pro KTC
Koss QZ900
Resistance to sweat makes it ideal for use while doing sports.
5.weather-sealed (splashproof)
Koss Porta Pro KTC
Koss QZ900
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
6.weight

67g

218g

We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
7.can be folded
Koss Porta Pro KTC
Koss QZ900
Foldable devices are easier to transport and take up less storage space.
8.travel bag is included
Koss Porta Pro KTC
Koss QZ900
The device comes with its own special case or pouch, which is useful for safe transportation.
9.has an in-ear form
Koss Porta Pro KTC
Koss QZ900
The in-ear device is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. It is inserted in the ear canal itself and blocks out a lot of environmental noise. It has stronger bass tones and is unlikely to fall out of the ear.

Sound quality

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
2.highest frequency

25000Hz

20000Hz

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
3.has passive noise reduction
Koss Porta Pro KTC
Koss QZ900
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
4.has active noise cancellation (noise control)
Koss Porta Pro KTC
Koss QZ900
This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.
5.sound pressure level

101dB/mW

100dB/mW

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
6.has a neodymium magnet
Koss Porta Pro KTC
Koss QZ900
Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
7.impedance

60 Ohms

32 Ohms

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
8.driver unit size

44mm

Unknown. Help us by suggesting a value. (Koss QZ900)

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
9.diaphragm size

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

The diaphragm moves air back and forth to create sound. The bigger the diaphragm, the more bass it can produce.

Power

1.Battery life

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.
2.has a rechargeable battery
Koss Porta Pro KTC
Koss QZ900
The battery can be recharged and used over again.
3.has a battery level indicator
Koss Porta Pro KTC
Koss QZ900
An indicator shows you when the device has low battery.
4.charge time

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

The time it takes to fully charge the battery.
5.battery power

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
6.Has USB Type-C
Koss Porta Pro KTC
Koss QZ900
The USB Type-C features reversible plug orientation and cable direction.
7.Battery life of charging case

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

The battery life of the charging case as given by the manufacturer. A charging case with a longer battery life allows you to recharge your headphones on the go multiple times before having to recharge the case itself.
8.has a removable battery
Koss Porta Pro KTC
Koss QZ900
The battery is removable and can be replaced by the user if broken.

Connectivity

1.Can be used wirelessly
Koss Porta Pro KTC
Koss QZ900
Wireless devices allow users more freedom of movement.
2.Bluetooth version

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
3.has a 3.5mm male connector
Koss Porta Pro KTC
Koss QZ900
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
4.Has Bluetooth aptX
Koss Porta Pro KTC
Koss QZ900
Bluetooth aptX is an audio codec used for transmitting hi-resolution audio wirelessly from Bluetooth-enabled devices. Developed by Qualcomm, the aptX audio technology includes variations such as aptX HD, aptX Low Latency, and aptX Adaptive.
5.maximum Bluetooth range

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

The device can connect at a greater distance via Bluetooth or infrared to another device.
6.supports Wi-Fi 6 (802.11ax)
Koss Porta Pro KTC
Koss QZ900
Wi-Fi 6, released in 2019, is based on the IEEE 802.11ax wireless LAN standard. Designed to operate in all frequency bands between 1 and 6 GHz, it offers higher data rates and lower latency compared to previous Wi-Fi technologies.
7.supports Wi-Fi 5 (802.11ac)
Koss Porta Pro KTC
Koss QZ900
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.
8.supports Wi-Fi 4 (802.11n)
Koss Porta Pro KTC
Koss QZ900
Wi-Fi 4 (802.11n) is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors – a, b, and g.
9.supports Bluetooth pairing using NFC
Koss Porta Pro KTC
Koss QZ900
Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.

Features

1.can be used as a headset
Koss Porta Pro KTC
Koss QZ900
A headset is one headphone or pair with a built-in microphone. Headsets can be used for apps that require communication i.e. Skype, games with voice chat, mobile phones, etc.
2.has a noise-canceling microphone
Koss Porta Pro KTC
Koss QZ900
These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.
3.number of microphones

1

Unknown. Help us by suggesting a value. (Koss QZ900)

More microphones result in better sound quality and enable the device to filter out background noise.
4.control panel placed on a device
Koss Porta Pro KTC
Koss QZ900
There is a control panel on the device 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.
5.Has an in-line control panel
Koss Porta Pro KTC
Koss QZ900
There is a control panel on the cable, so you can easily operate the device without having to interact with it.
6.warranty period

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction.
7.Has voice prompts
Koss Porta Pro KTC
Koss QZ900
With voice prompts, you will automatically receive information via audio messages – for instance, you may find out that the battery is running low, and it's time to recharge the device.
8.has a mute function
Koss Porta Pro KTC
Koss QZ900
The device has an option to mute/unmute a conversation directly from the device.
9.multipoint count

Unknown. Help us by suggesting a value. (Koss Porta Pro KTC)

Unknown. Help us by suggesting a value. (Koss QZ900)

Multipoint allows you to link to more Bluetooth devices and switch between them. For example you can easily switch calls from one device to another without having to manually disconnect and reconnect.

Price comparison

Koss Porta Pro KTC

ProductStorePrice
Koss Porta Pro KTC AmazonKoss Porta Pro KTC Ultimate Portable Hea...Koss Porta Pro KTC Ultimate Portable Headphone for iPod, iPhone and iPad
Amazon logo
$79.99
Koss Porta Pro KTC AmazonKoss Porta Pro On Ear Headphones with Ca...Koss Porta Pro On Ear Headphones with Case, Black / Silver
Amazon logo
$34.99
Koss Porta Pro KTC AmazonKoss KTXPRO1 Titanium Portable Headphone...Koss KTXPRO1 Titanium Portable Headphones with Volume Control, Single, Standard Packaging
Amazon logo
$19.29
Koss Porta Pro KTC AmazonKoss Porta Pro Limited Edition Black Gol...Koss Porta Pro Limited Edition Black Gold On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Includes Hard Carrying Case, Wired with 3.5mm Plug, Black and Gold
Amazon logo
$59.99
Koss Porta Pro KTC AmazonKoss SportaPro Stereo Headphones, Standa...Koss SportaPro Stereo Headphones, Standard Packaging
Amazon logo
$59.83
Koss Porta Pro KTC AmazonKoss Porta Pro with Microphone and Remot...Koss Porta Pro with Microphone and Remote On-Ear Headphones, in-Line Microphone and Touch Remote Control, Collapsible Design, Wired with 3.5mm Plug, Black and Silver
Amazon logo
$59.99
Koss Porta Pro KTC AmazonKoss KPH30iRB On-Ear Headphones, in-Line...Koss KPH30iRB On-Ear Headphones, in-Line Microphone and Touch Remote Control, D-Profile Design, Wired with 3.5mm Plug, Rhythm Beige
Amazon logo
$29.99
Koss Porta Pro KTC AmazonKoss Porta Pro Wireless Bluetooth On-Ear...Koss Porta Pro Wireless Bluetooth On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote, Adjustable Headband with Multi-Pivoting Ear Plates, Black
Amazon logo
$117.40
Koss Porta Pro KTC AmazonKoss UR42iW Over-Ear Headphones, in-Line...Koss UR42iW Over-Ear Headphones, in-Line Microphone and Touch Remote Control, Detachable Dual Choice Entry Cord, Wired with 3.5mm Plug, White
Amazon logo
$29.99
Koss Porta Pro KTC AmazonKoss BT540i Full Size Bluetooth Headphon...Koss BT540i Full Size Bluetooth Headphones, Black with Silver Trim
Amazon logo
$119.99

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