Sony MDR-1AM2 vs Koss QZ900 – Full Comparison & Verdict (2026)

Swivel ear cups for portability. Swivel design makes travel easy. Silver-coated oxygen-free copper. High-Resolution Audio compatible. Patterned grill for smooth ultra-highs. Heavy bass with Beat Response Control. Enfolding closed-back design seals in sound. Pressure-relieving earpads for total comfort. Super-lightweight design for hours of comfort. Smartphone compatible with in-line remote mic. Supplied balanced-connection headphone cable. Silver-Coated OFC Strands, L-shaped Gold-Plated. Wide frequency response for a full range of sound. Responsive Liquid Crystal Polymer driver for clarity. Aluminum-coated LCP diaphragm for more precision. Enjoy music as the artist intended with High-Resolution Audio.

- Revolutionary Active Noise Reduction (ANR) headphone system reduces harmful and annoying low frequency sounds in noisy environments - Closed leatherette ear cushion for added passive noise reduction - Cord unplugs to enjoy passive and active noise cancellation wirelessly - Straight single-entry 4 foot cord with in-line volume control - Fold flat for portability; carrying case included - Covered under the Koss Stereophones Limited Lifetime Warranty

There is a noticeable difference in weight (NA vs 187 Gm), which may affect comfort during extended use. Impedance levels vary (32 Ohms vs 16 ohm), which can affect compatibility and audio output when used with different devices. Koss QZ900 and Sony MDR-1AM2 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (20 Hz - 20000 Hz vs 3 Hz - 100000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Koss QZ900 and Sony MDR-1AM2 offer different noise cancellation capabilities (Yes vs NA), which can impact how effectively they block external noise. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.

Top Differences

Noise Cancelling: Yes vs NA
Driver Size: NA vs 40 mm
Weight: NA vs 187 Gm
Impedance: 32 Ohms Vs 16 ohm

Compare Sony MDR-1AM2 with:

Compare Koss QZ900 with:

Top Differences