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Headphones

Koss Porta Pro

Your Price: $49.99
MSRP $49.99
  • Availability: In Stock
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We've long been a gigantic fan of these little open-back 'earpad' (on-ear) style headphones for listeners wanting a compact, good-sounding upgrade for portable and mobile use. The sound remains simply unmatched at this price and the Porta Pro conveniently fold into a compact and sturdy little bundle for storage or transport. HeadRoom is a true Koss-authorized dealer so your purchase comes complete with their outstanding 100% manufacturer's lifetime warranty!


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Product Features:

  • Likely the best sound quality in category at this price!
  • Open-back earpieces lets you remain aware of your surroundings.
  • Excellent choice for gym, jogging and active-use
  • Conveniently rolls up & clips into small bundle for transport & storage
  • Killer Koss LIFETIME manufacturer's warranty

What's In The Box:

  • 1/4" stereo plug adaptor

Applications:

Frequency Response for the Koss Porta Pro

Click here to see more graphs.

These could just still be our favorite '$50-and-under' headphone. The Koss Porta-Pro are a killer-sounding portable headphone at a very strong price. Matter of fact, picky headphone afficionados universally declare the Koss can actually sound better than some mobile headphone designs costing twice the price. If you have an iPod, iPad, MP3 player, laptop/PC computer, tabletop radio, portable CD/DVD/MiniDisc player, WalkMan or other portable audio device, these little cans will perform wonderfully for all music genres. The Porta-Pro likely remain amongst the clearest-sounding & best musically detailed mobile headphones suitable for all your portable audio needs. Moreover, that sweet Koss manufacturer's lifetime warranty sure doesn't hurt any; If you accidentally break 'em or if the speaker drivers decide head south in a few years, Koss will repair or replace the headphones as long as you keep the original 'Koss authorized dealer' receipt -- like the one you'll get from HeadRoom!

The long-running Koss Porta-Pro product design is pretty unique in the category: Two small pads on the sides of the Porta-Pro headband allow the headphones to rest simultaneously on your ears and cushion on the sides of the head, giving these headphones an extremely secure feel in active applications like during heavy exercise or gym work. The earpieces collapse inward and the headband ingeniously curls up to clip at each end, allowing the cans to fold down quite small for storage or travel. The Porta-Pro's 'Y'-type cord is connected at each earpiece by a short straight-type 4.5ft cable and the cord terminates to a 1/8" (3.5mm) mini-plug jack. A full-size 1/4" plug adapter is handily included in the Koss package. Lifetime Koss warranty -- oooh, yeah!

Specifications:

  • Sensitivity: 101 dB/mW
  • Manufacturer Warranty: Lifetime warranty
  • Headphone Type: Earpad
  • Connector Type: 1/8
  • Weight: 2.5 oz.
  • Impedance @ 1kHz: 60 Ohms
  • Detachable Cable: No
  • Cord Length: 4 ft. (1.2 m)
  • Cord Type: Straight Y
  • Ear Coupler Type: Earpad
  • Driver Type: Dynamic
  • Acoustic Seal: Open

Additional Resources:

Click here to learn more about headphone graphs. Click on any graph below to compare product data.

Frequency Response Graph for the Koss Porta Pro

Harmonic Distortion Graph for the Koss Porta Pro

Isolation Graph for the Koss Porta Pro

Impedance Graph for the Koss Porta Pro

50Hz Square Wave Graph for the Koss Porta Pro

500Hz Square Wave Graph for the Koss Porta Pro

Reviews At A Glance
13 Reviews
5 Reviews
1 Reviews
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Average Rating 
(Showing 3 of 19 reviews)



Odd looking, great sounding
Posted by Up in the Air Again from White House Station, NJ on 2011-06-22

Recommend Product: Yes
Pros: Light, fold up small, sound really good
Cons: Earpieces come off easily

Have had these for a long time as my bang-around headphones for listening while working out or chilling in the room. The sound quality is really good - lots of headphones in this price range, and with this ear-design, sound like garbage - dull, muddy, and punchy at either top or bottom. These are nicely balanced, clean and crisp on highs, tight on bass, drive well from portable players. I find a lot of headphones to be very uncomfortable where they hit the top of my head, but these are so light I can't even feel them. I change the padding twice a year when I start to notice the work out smell is building up.

The only complaint is that the ear pieces come apart, and it doesn't take much to make them come apart. They snap back together just fine, but I'm sure the cycle of coming apart and snapping together is going to hasten the end for these.

And, they really look odd. Retro? Maybe. Kind of kit-ish. Don't judge them by their looks. They really are great buys in the ultra-light small portable category.


Sound Quality
Comfort
Look & Feel
Durability

5 out of 5 people found this review helpful. Did you?


Amazing Phones
Posted by Mokuraii from State College, PA on 2011-01-29

Recommend Product: Yes
Pros: Great Sound, Deep Bass, Clear mids and his
Cons: none

I've tried and own many headphones, including the high end DENONs. In an airplane (or other noisy environments), nothing beats ear canal headphones. In every other case, these are just amazingly beautiful sounding headphones. Can't fault the bass, and the mids and his are just great. For the price, these are an insane bargain. Get them immediately, and end your quest for the ideal portable headphone. Yes, they're that good !!! Oh, they're also super easy to drive... no need for amps (of which I also have several). DO BURN THEM IN. Right out of the box, they sound like the PX-100-2s (muffled).


Sound Quality
Comfort
Look & Feel
Durability

13 out of 13 people found this review helpful. Did you?


One great little headphone!
Posted by Rotobuster from Bridgeport CT on 2010-12-19

Recommend Product: Yes
Pros: Sound quality & comfort
Cons: Can't really think of any

I bought my first set of Koss PortaPros way back in the early 1980s when cassette based Sony Walkmans were all the rage. Back in those days, I didn't know that they were 'inexpensive' headphones; I only knew that they were great-sounding headphones. Now, almost 30 years later, not one thing has changed in my opinion of these phones. They have traveled from Walkman to Discman to iPod to iPad, with all signal sources sounding great. many people don't like on-ear cups for extended use, and neither do I. But Koss has ingeniously fixed that problem with a dial-in pressure adjustment that shunts the push of the phones against your ear to a cool little foam piece that connects with your head above your ear making for a very comfortable-feeling fit that endures extended listening sessions with ease.
I have other phones, primarily a beloved set of Grado RS2s, which are phenomenal, so it is NOT that I have no point of comparison. Regardless, these phones are not just great 'for the money,' they are just great. It goes to show that proper and careful engineering can do wonders.
Are they perfect? Of course not. They are a bit pronounced in the midrange, ever-so-slightly boxy in sound character and they don't isolate noise, which makes them a bit less suitable for airplane use, etc. Compared to the Grados, they aren't as open-sounding and 'airy.' But they only cost about as much as I paid for the TAX on the Grados!
I'm not really a fan of Koss products in general. I've tried higher and lower priced offerings from their lineup, and have usually ended up giving them away. But not these. In fact, in my mind, a pair of PortaPros and a pair of good high-enders are ALL you need. For some, maybe a pair of noise-canceling cans, but even the best of these either annoy you by being stuck in your ear or sound terrible, as the leading active-noise-canceling offering does. For me, I'm willing to put up with a little extra background noise. What I get back is sound quality and comfort.


Sound Quality
Comfort
Look & Feel
Durability

18 out of 19 people found this review helpful. Did you?


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