kmmbd
500+ Head-Fier
Koss Porta Pro X vs Koss KPH30i
Showdown!
The Koss Porta Pro X is the Drop variant of the venerable Koss Porta Pro, and the Koss kph30i needs no introduction I guess.
This will be a quick comparison between the two. Both of them have been modded with Yaxi pads, by the by. So you can add $10-15 to the retail price of the stock headphones.
Build: Both of these have pretty shoddy build with thin, noodle-like cables. However, the KPH30i build is especially poor with plastic headbands and a design that can't withstand force at all. Porta Pro meanwhile can be folded and the design is more modular in comparison. The KPH30i is so flimsy that one can easily break it while trying to install the Yaxi pads. Caution advised.
Winner: Porta Pro
Comfort: Both are very comfortable headphones. However, the Porta Pro's headband design can catch your hairs and it can be a rather painful experience at times. For this alone, the KPH30i wins by a landslide on this front.
Winner: KPH30i
Sound: The reason why we're here. All sound impressions are with the Yaxi pads on.
They have a similar tone profile (a warm, rich presentation) but there are some important differences. The Porta Pro has a more visceral bass punch and the slam is stronger. The lower-mids on the KPH30i however are more lifted in comparison, while the upper-mids sound more prominent on the Porta Pros. As a result, the Porta Pro becomes more V-shaped sounding compared to the KPH30i which has a more even FR. Treble is about par on both I'd say.
However, one area where the Porta Pro trounces the KPH30i is the soundstage. The Porta Pro has a better, more rounded stage with more frontal vocal projection, whereas the KPH30i places the vocals a bit more inside your head. This is why I found the Porta Pro to be more enjoyable while gaming/watching movies. Imaging and separation are about par though the KPH30i has better center-imaging (though I won't call either to be very good at imaging).
Picking a winner is tough here, but I personally prefer the more fun tuning of the Porta Pro. The KPH30i sounds a bit flatter in comparison. If you prefer a more neutral presentation you might like the KPH30i more.
Winner: Draw
TL;DR: If you like a warm-neutral presentation get the KPH30i, if you prefer something more V-shaped, energetic, and fun: the Porta Pro is your friend. And of course grab the Yaxi pads while you're at it.