I was wondering how bad the noise leakage is? Is it minimal or would earplug type be better if you were looking for a portable option ?

They are open-air headphones and do leak sound, it does help improve the quality though. But if you're looking for non-leakage, I'd go with the Monoprice IEM, They are super cheap and sound fantastic with minimal leakage.

Is this the same as the Radio Shack Pot 35A, will the replacement cushions fit?

I am not familiar with the Radio Shack Pot 35A. The cushions on the Koss are nice, soft and durable with normal use. I would not worry about cushion replacement.

Do Yaxi earpads work with these?

Yes. But if you want best result, the stock pads have to go. You either cut them off or you can detach the speaker from the housing, exchange pads with Yaxi’s and cluck back in the shell. Same simple click system as PortaPro. But this must be done very carefully as you easily brick the speaker when pulled out or snapped back in with too much force. That causes deformation in the speaker casing and membrane wrinkles that makenit come loose from the rim.

Will they work HPwindows 8 LAPTOP

I haven't tried them with Windows 8 but as long as a device has a headphone jack it will accept any headphones on the market. (At least I haven't heard of any new type that has a driver or something odd like that)

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Description

🎧 Elevate your audio game with precision and comfort that keeps you connected.

LIGHT AS AIR COMFORT - Weighing just 113 grams, these headphones stay comfortable during marathon work sessions or commutes.
OPEN HEAR THROUGH DESIGN - Stay aware of your surroundings without sacrificing sound quality—perfect for busy professionals on the move.
TITANIUM PRECISION SOUND - Experience crystal-clear audio with titanium layered diaphragms for unmatched accuracy.
EFFORTLESS VOLUME CONTROL - Adjust your sound on the fly with intuitive in-line volume control—no fumbling required.
UNIVERSAL WIRED COMPATIBILITY - Plug into any device with a 3.5mm jack plus 6.3mm adapter—seamless connection guaranteed.

The Koss KTXPRO1 Titanium Portable Headphones deliver high-fidelity sound through titanium layered diaphragms, combined with a lightweight 113g build and convenient in-line volume control. Featuring a 4-foot dual-entry wired connection with both 3.5mm and 6.3mm plugs, these on-ear headphones offer an open hear-through design for situational awareness, making them ideal for professionals seeking premium sound and portability.

Specifications

Headphones Jack	3.5 mm Jack, 6.35 mm Jack
Model Name	KTXPRO1
Connectivity Technology	Wired
Wireless Communication Technology	Bluetooth
Included Components	Ear Cushions, Headband
Age Range (Description)	Adult
Material	Titanium
Compatible Devices	Cellphones, Laptops, Tablets, Desktops
Control Type	Volume Control
Item Weight	113 g
Control Method	Remote
Number of Items	1
Audio Driver Type	Dynamic Driver
Carrying Case Material	[POSSIBLE] Box
Earpiece Shape	over-ear
Is Autographed	No
UPC	521375525955 777786368807 523160463428 782386032034 731215326219 803982931764 050500106818 031111135138 689076746038 014444643341 531479602391 163120711666 999999923134 151903402665 887470016386 001910135141 021299147641 013040085777 071020238209 767887438172 804067426274 088037836199 072858919230 807031772513 070010036368 069060144154 999993965857 808113037940 182682279957 151903388891 872182710158 083597878597 163121208875 807320249474 041114532643 168141217708 336939750397 851905156572 172302807776 055555559497 999992753745 617407283815 021299145517 711938622379 809386491996 132017900483 212991476416 115970745414 755034045212 168141622427 012302970813 132017556215 799472003182 809187140352 071030162167
Manufacturer	Koss
Model	KTXPRO1
Model Year	2010
Product Dimensions	25.91 x 18.29 x 5.08 cm; 113.4 g
Item model number	KTXPRO1
Special Features	on-ear
Colour Screen	No
Microphone format	without microphone
Batteries Included	No
Batteries Required	No
Maximum Operating Distance	4 Feet
Form Factor	On ear, Over Ear
Does it contain liquid?	No
Includes Rechargeable Battery	No
Manufacturer	Koss
Country of Origin	USA