
Sony MDR7506
Score: 73/100
Soundcore Q20i
Score: 82/100Rankings

The Soundcore Q20i delivers hybrid active noise cancellation, an impressive 40-hour battery life, and app-based EQ customization at a budget price. Its relatively heavy weight and reliance on wired Hi-Res audio limit some premium use cases. Perfect for budget-conscious commuters who need long battery life and effective ANC.

The Sony MDR-7506 is a professional closed-back studio headphone known for its accurate sound reproduction and excellent isolation. Lacking wireless connectivity and on-headset volume controls makes it less versatile for modern mobile use. Best suited for audio engineers and broadcasters who need reliable wired performance.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 40 hoursbest | |
40 mmbest | 40 mmbest | |
| ↓ lower better | 260 g | 259 gbest |
63 Ωbest | 16 Ω | |
106 dB SPLbest | 99 dB SPL | |
— | 800 mAhbest | |
| ↓ lower better | — | 90 minutesbest |
— | 10 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Wireless Connectivity | false | true |
Audio(3) | ||
Frequency Response | 10-20000 | 20-20000 Hz |
Impedance (Ω) | 63 Ω | 16 Ω |
Sensitivity (dB SPL) | 106 dB SPL | 99 dB SPL |
Build & Design(2) | ||
Weight (g) | 260 g | 259 g |
Dimensions (H×W×D) (mm) | 246x84x185 mm | 176x187.5x105.4 mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the MDR-7506 a studio staple, emphasizing its closed-back architecture for superior isolation, the 40 mm neodymium-driven drivers for accurate bass and dynamics, and its foldable, portable build with a long coiled cable that resists snags. Editors highlight its comfort during long sessions and its ability to deliver ample volume even from low-impedance sources.
Everyday users consistently commend the headphones for their clear stereo imaging, robust noise isolation, and practical foldable design. The long coiled cable and included adapters receive positive remarks for flexibility, while the most common complaint centers on the absence of an on-headset volume control and lack of wireless connectivity.

Professional reviewers highlight the Q20i's strong hybrid ANC, long battery life, and the inclusion of Hi-Res audio support via the AUX cable as standout features for a budget model. They also commend the app's EQ customization and multipoint Bluetooth, while noting that comfort assessments rely on user feedback and spec inconsistencies may cause buyer uncertainty.
Everyday users consistently praise the headphones for their marathon battery life, comfortable ear pads, and punchy bass, while common frustrations revolve around the single call mic, the relatively heavy weight, limited Bluetooth range, and the need to use a wired connection for true Hi-Res audio.
“extraordinary acoustic isolation”


