This Koss Porta Pro review is about the closed-back headphones that look pretty unusual. The considered device has an on-ear wearing style and can be used only with an audio cable.
Koss Porta Pro review
Features
Their frequency response is 15 Hz - 25 kHz. One of the Koss Porta Pro specs I would like to mention is impedance which is 60 Ohm. Its sensitivity is pretty standard for on-ear headphones — 101 dB.
Sound
Koss Porta Pro is an incredibly accurate sounding device with an amazing clean sound across the whole frequency spectrum. Surprisingly, the Porta Pro can cast a pretty open soundstage, but only in one direction. The low-end is pretty clear and punchy whilst the mid-range is more forward without sounding harsh. Bass is very well textured, however, not as nuanced as are lots of other HiFi headphones.
Connectivity
The audio cable that comes with this pair of headphones is not detachable. Its length is 120 cm/4 ft. Koss Porta Pro has a 3.5 mm TRS.
Comfort and design
The headband of Koss Porta Pro can be adjusted which makes the device pretty comfortable. A small switch on the side lets you choose between a light fit, firm fit, or somewhere in between. Despite the extraordinary construction, these retro styling headphones are foldable. You can fold the headphones up to a compact, palm-sized ball. With this appliance, you get a nice case for carrying.
Their weight is really impressive since the Porta Pro has only 60 g/2 oz. It makes the device incredible light. The earpads of the headphones have an exceptional 80s aesthetic with the original Koss brand sign. It is a pity but the headphones do not have a microphone.
Pros and cons
Pros
- Oxygen-free copper voice coils deliver deep bass and signal clarity
- The foam right above the ear cups makes the headphones comfortable
- The design keeps them ideal for commuting or using while you exercise
- When folded it is small enough even to fit in your pocket
- It is very easy to forget you are wearing them
Cons
- If you try to adjust the headband while they’re on your head you might lose a few hairs
- The audio cable is very thin
- You will hear everything that goes on around you virtually unimpeded
Common features
Product
Model
Brand
Reviews
General
Wearing style
Enclosure
Wireless
Wired
Specifications
Transducer
Driver size, mm/inches
Impedance, Ohm
Frequency response, Hz
Total harmonic distortion (THD), %
Sensitivity (SPL), dB
Magnet type
Weight (headphones), g/oz
Comfort
Adjustable headband
Foldable
Noise cancelling
Active noise cancelling
Adjustable noise cancelling level
Microphone
Built-in microphone
In-line microphone
Detachable microphone
Cables
Detachable cable
Audio cable length, cm/ft
Jack connection (TRS)
Balanced connection
Control
Built-in control buttons
In-line control
Touch control
Voice control
App control
Control functions
Wireless connectivity
Bluetooth
Bluetooth version
aptX
aptX HD (Hi-Res Audio)
Bluetooth profiles
NFC
Wi-Fi
Battery
Battery type
Battery life, hrs
Charging time, hrs
Charging port
Charging cable
Speed charge
Battery free listening mode
Battery level indicator
Additional features
Water resistance
Light indication
Additional audio features
In the box
Audio cable
Carry case
Charging cable
1/4 Adapter (6,35 mm)
Interchangeable ear pads
User manual
Manual
