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Sennheiser HDB 630 vs STAX SR-L500: which should you buy?

Specs, scores and condensed review verdicts for the Sennheiser HDB 630 vs STAX SR-L500, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Sennheiser HDB 630 leads on 7 of 7 measures.

  • Sennheiser HDB 630
  • STAX SR-L500
HearWiki score
86
-
Sound
9.4
-
Noise cancelling
8.2
-
Battery
9.7
-
Calls
8.5
-
Value
8.4
-
Price (USD)
$450
$830

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Half a step newer

Sennheiser HDB 630 (2025) against STAX SR-L500 (2016). The Sennheiser HDB 630 edges ahead on platform, but only just: ANC type Adaptive against None. It also adds USB-C.

  • HDB 63020259 yr newer
  • SR-L5002016
What differsHDB 630SR-L500

Platform

ANC type
Adaptive
None

Everyday features

USB-C
Yes
No

Specifications

HDB 630SR-L500
Type
Over-Ear
Over-Ear
Price (USD)
$450
$830
HearWiki score
86
Not scored
Released
2025
2016
Availability
Sold new
Discontinued
Driver
42 mm dynamic
hybrid
Driver type
dynamic
hybrid
Driver size
42 mm
-
Drivers per side
1
-
Frequency response
6 Hz - 40 kHz
-
Sound signature
neutral
-
Impedance
480 Ω
145000 Ω
Sensitivity
105 dB/mW
101 dB/mW
Bluetooth
5.2
-
Codecs
SBC, AAC, aptX, aptX HD, aptX Adaptive
-
Multipoint pairing
Yes
-
Battery life
60 h
-
Battery life (ANC on)
60 h
-
Full charge time
120 min
-
Quick charge
10 min → 7 h
-
Wireless charging
No
-
Active noise cancelling
Yes
No
ANC type
adaptive
-
Transparency mode
Yes
-
Companion app
Yes
-
Custom EQ
Yes
-
Wear detection
Yes
-
Controls
touch
-
Voice assistant
Yes
-
Weight
311 g
339 g
Water resistance
none
-
Detachable cable
Yes
-
USB-C
Yes
No
Pad material
-
leatherette
Connector
3.5 mm
-
Microphones
4
-

What reviewers said

Sennheiser HDB 630

The Sennheiser HDB 630 is a premium wireless over-ear headphone that prioritizes audio fidelity above all else, pairing a detailed 42 mm driver with adaptive noise cancellation and extensive aptX codec support. Its standout feature is the bundled BTD 700 dongle, which unlocks high-resolution wireless performance, while a long 60-hour battery life and comfortable fit make it suitable for extended listening sessions. Though it lacks water resistance and wireless charging, its balanced tuning and engaging sound make it a top choice for audiophiles on the go.

  • Pro:Excellent, balanced sound quality
  • Pro:Adaptive ANC with strong performance
  • Pro:Support for aptX Adaptive and aptX HD
  • Con:No water resistance
  • Con:No wireless charging
  • Con:Some noticeable sonic quirks in certain settings

STAX SR-L500

The STAX SR-L500 is a premium electrostatic over-ear headphone designed for audiophiles seeking a detailed and transparent listening experience. It combines a hand-selected thin-film diaphragm with robust stainless steel electrodes, housed in a redesigned enclosure that prioritizes comfort via a 10-click adjustable headband. The included low-capacitance HiFC cable ensures clean signal transfer to the drivers.

  • Pro:Detailed and transparent electrostatic sound
  • Pro:Comfortable adjustable headband with 10-click fit
  • Pro:High-quality low-capacitance cable for signal purity
  • Con:Requires a dedicated electrostatic amplifier (not included)
  • Con:Very high impedance may limit source compatibility
  • Con:No active noise cancellation or wireless connectivity

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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