The HD 505 challenge premium headphones at half the price.
Sennheiser’s HD 505 redefines entry-level audiophile headphones with analytical tuning, an immersive soundstage, and enhanced comfort. Featuring a 120-ohm transducer and angled drivers, it challenges both its predecessors and rivals—but does it justify its price? Let’s find out.
Precision Over Punch
Many headphones in this price range boost bass and treble for a more engaging, colored sound. The HD 505, however, takes a different approach, focusing on clarity and precision. It features a custom 120-ohm transducer and a frequency response of 12–38,500 Hz, keeping the sound balanced, with articulate mids and a smooth, revealing treble.
Sennheiser describes the HD 505 as offering controlled bass without exaggeration, keeping the focus on accuracy rather than impact. Some speculate that the HD 505 refines the treble response compared to the HD 560S, potentially making it less harsh. Without direct measurements, this remains unconfirmed.
Whether this layout improves gaming and cinematic experiences remains to be seen, but it suggests a level of immersion beyond typical entry-level headphones.
Familiar Build, Small Tweaks
Sennheiser sticks with the HD 500 series chassis, a design built for lightweight comfort. While some appreciate its familiar fit, others have criticized the plasticky feel compared to premium alternatives.
At 237g, the HD 505 is among the lightest in its category, making it a solid option for long listening sessions. It features a detachable 1.8m cable (3.5mm with a 6.3mm adapter) for easy connectivity across different setups.
The HD 505 retains the modular design of the HD 500 series, with a detachable cable and user-replaceable earpads. While not as modular as some competitors, this design extends the headphone’s lifespan.
Visually, the bronze-on-black color scheme gives it a modern look, aligning with the 660S2’s aesthetic direction.
Price vs. Performance
At $249.95, the Sennheiser HD 505 jumps into a crowded field, squaring off against some of the most respected headphones in the $200–$300 range. With its analytical tuning and angled drivers, it aims to attract listeners looking for clarity and precision over warmth or bass-heavy sound.
So, how does it actually stack up? Let’s break it down:
| Feature | Sennheiser HD 505 | Beyerdynamic DT 900 Pro X | HiFiMan Sundara | AKG K702 |
|---|---|---|---|---|
| Tuning | Analytical | V-Shaped | Neutral-Bright | Neutral |
| Driver Type | Dynamic (120Ω) | Dynamic (48Ω) | Planar Magnetic | Dynamic (62Ω) |
| Soundstage | Expansive, natural | Wide, airy | Wide, detailed | Very wide |
| Comfort | Lightweight, moderate clamp | Plush pads, firm clamp | Slightly heavy | Loose fit, large cups |
| Build | Plastic with metal mesh | Metal & plastic | Metal & plastic | Plastic |
| Price | $249.95 | $249.00 | $279.00 | $214.50 |
The DT 900 Pro X delivers extended, well-defined bass with a spacious soundstage, making it a great choice for those who want a more dynamic, engaging presentation. The HD 505, by comparison, focuses on precision and neutrality, possibly making it the better fit for analytical listeners.
Similarly, the HiFiMan Sundara is known for its fast transient response and treble clarity thanks to its planar magnetic drivers. The HD 505’s dynamic driver design may offer a smoother, less aggressive high-end, which could be better for those sensitive to bright treble.
When it comes to soundstage, the AKG K702 is known for its exceptionally wide presentation, though its lack of bass impact makes it a more niche choice. The HD 505 keeps things open and immersive while maintaining some low-end presence, making it the more versatile option.
One of the biggest hurdles for the HD 505 isn’t its competition—it’s the HD 600. While the HD 600 officially retails for $399.95, it’s frequently discounted to $275–$320, and during sales, it sometimes drops to $250–$270.
With prices this close, many buyers will opt for the HD 600, given its legendary status as a reference headphone. This puts pressure on the HD 505 to justify its existence—not by competing directly with the HD 600, but by offering something different.
Where the HD 505 Stands on Its Own
The HD 600 is an audiophile staple, but it requires proper amplification to shine. The HD 505, by contrast, is easier to drive, making it a more accessible choice for casual listeners, gamers, or those who don’t want to invest in additional gear.
Of course, its success depends on how well it actually delivers. If it delivers on analytical detail, ease of use, and long-term comfort, the HD 505 could establish itself as a strong alternative in the mid-range audiophile space—not just as the HD 600’s little sibling, but as a compelling choice in its own right.