Buy the Audio-Technica ATH-M20x for closed-back isolation and a more neutral studio sound. Buy the Koss Porta Pro for portability, a lighter fit and a lower price. As of November 5, 2026, the M20x is $59.00 at Best Buy and the Porta Pro is $39.99 at Amazon, a $19 gap.
Today the Koss Porta Pro costs $19.01 less at its best price.
It checks today's price at every store, compares the alternatives and answers in about a minute.
Choose the ATH-M20x if you want closed-back headphones for recording, quiet listening or blocking out background noise.
Choose the Porta Pro if you want a foldable, lightweight on-ear pair for travel and casual listening at the lowest price.
| Audio-Technica ATH-M20x | Koss Porta Pro | |
|---|---|---|
| Price | $59.00 at Best Buy as of November 5, 2026 | $39.99 at Amazon as of November 5, 2026 |
| Earpiece design | Over-ear, closed-back | On-ear, semi-open-back |
| Isolation | Closed cups block some outside noise and limit sound leak | Semi-open design leaks sound and lets noise in |
| Portability | Fixed cups, no fold; about 11 in tall | Folds down to about 2 in tall |
| Frequency response | 15–20,000 Hz (M-series tuning) | 15–25,000 Hz |
| Impedance | 47 ohms | 60 ohms |
| Cable | 3 m straight cable, single entry | 1.2 m straight cable, dual entry |
| Weight and fit | About 190 g, over-ear clamp | About 60 g, on-ear with adjustable headband |
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| Spec | Audio-Technica ATH-M20x | Koss Porta Pro |
|---|---|---|
| Connectivity | Wired | Wired |
| Color | Black | Black / Silver |
| Style | On-ear | On-ear |
| Height | 11″ tall | 2″ tall |
| Over-Ear | Yes | — |
| Frequency Response | — | 15-25,000 Hz |
| Impedance | — | 60 ohms |
| Sensitivity | — | 101 dB SPL/1mW |
| Cable | — | Straight, Dual Entry, 4ft standard 3.5mm |
| Wearing Style | — | Dual Ear with Headband |
| Foldable | — | Yes |
| Earpiece Design | — | On-Ear (Supra-Aural) |
| Spec | Audio-Technica ATH-M20x | Koss Porta Pro |
|---|---|---|
| Open/Closed-Back | — | Semi-Open-Back |
| Driver Type | — | Dynamic |
| Audio Connector | — | 1x 1/8" / 3.5 mm TRS |
| Cable Length | — | 3.9' / 1.2 m |
| Use | — | Sports |
Owners and reviewers generally treat the ATH-M20x as one of the best sub-$60 wired headphones for monitoring and casual listening. It is praised for clear, balanced sound and comfort, and criticised for its plastic feel and tight fit.
Owners treat the Porta Pro as a long-running budget favorite: light, comfortable and surprisingly open-sounding for the money. Complaints center on sound leakage, fragile build and foam pads that flatten over time.