Koss "Porta Pro" On Ear Headphones
About this deal
It might be quite unfair to compare the KPH30i to a headphone 3x the price, but hear me out. The HD58x, of course, would take build quality hands down. The frame is much more well built, and the design is tried and tested, and it’s built like a tank. However, for comfort, I would take the KPH30i any day, since the Porta Pro’s adjustment sliders will snag all the hair out of anyone’s head. The clamping force of the KPH30i is also much more evenly distributed, unlike the Porta Pro’s more focused force on the temples.
And I’m not going to argue with them. This driver has been a budget audiophile favorite for almost 40 years. Did I mention that I broke 2 of the 3 pegs trying to get the KPH30i open? Only the bottom right side still has the original snap peg. Blue tape seems to be holding them together just fine.The diaphragm receives an extremely thin layer of titanium bonded to its surface. Titanium is a popular choice for driver manufacturers as it has the highest strength-to-weight ratio of any metal. Titanium sure does make the driver super shiny!
The Porta Pro® Wireless Bluetooth headphones feature a rechargeable lithium-ion battery that can last 12+ hours. Like the Porta Pro® Classic headphones, the Porta Pro® Wireless Bluetooth headphones have adjustable temporal pads to relieve pressure on the ears. Its lightweight, open-air cushions for hear-through sound keep listeners aware of their surroundings while delivering exceptional sound performance. Oxygen free copper voice coils and dynamic elements allow the Porta Pro® Wireless Bluetooth headphones to deliver rich bass and a remarkably wide frequency response. I know, that you know, that I know you know, that I like the 60ohm, 35mm Koss driver. A lot. It’s INCONCEIVABLE that you do not. Princess Bride humor aside, what differentiates the KSC75 driver from the one found in the Porta Pro or KSC35 is titanium.
KOSS KPH30I Specifications
If you gravitate towards great midrange, and a healthy and open sound stage, this will be a great option for you. It manages to keep the vocals clear while not taking too much away from the highs or the lows. In 1991, Michael J. Koss, son of founder John C. Koss, took over as president and chief executive officer.  This section needs additional citations for verification. Please help improve this article by adding citations to reliable sourcesin this section. Unsourced material may be challenged and removed. ( August 2015) ( Learn how and when to remove this template message)
With desktop DAC’s, I tried the iFi Zen DAC, and it sounds great with it as well. Given that the iFi will sound a bit warmer than the Dragonfly, The KPH30i did not sound too boomy nor did the bass overpower the midrange. I can say that the KPH30i plays nicely with both since the headphone is very neutral, to begin with. As with all the headphones sharing this venerable driver, the KPH30i offer far more than they cost.Many have extolled the virtues of these headphones that cost about the same as a lunch for two at your favorite fast food joint. It’s time to find out if the KSC75 are the giant killers they are said to be. Do they really sound good enough to put headphones many times their price to shame? How do they compare to their numerous brothers and sisters sharing the same driver? It took me a while to get to listen to them, but when I had the chance, I couldn’t put them down anymore. So I ended up buying a pair.