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Audeze Maxwell 2 ANC vs Sennheiser HD 505: which should you buy?

On aggregated review scores the Audeze Maxwell 2 ANC comes out ahead with a HearWiki score of 88. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Audeze Maxwell 2 ANC - Outstanding overall at around $429.

Score breakdown

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

Audeze Maxwell 2 ANC leads on 6 of 7 measures.

  • Audeze Maxwell 2 ANC
  • Sennheiser HD 505
HearWiki score
88
79
Sound
9.3
8.1
Noise cancelling
8.5
-
Battery
8.0
-
Calls
9.0
-
Value
6.5
5.9
Price (USD)
$430
$330

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

Audeze Maxwell 2 ANC (2026) against Sennheiser HD 505 (2025). The Audeze Maxwell 2 ANC edges ahead on platform, but only just: ANC type Adaptive against None. It also adds USB-C.

  • Maxwell 2 ANC20261 yr newer
  • HD 5052025
What differsMaxwell 2 ANCHD 505

Platform

ANC type
Adaptive
None

Everyday features

USB-C
Yes
No

Specifications

Maxwell 2 ANCHD 505
Type
Over-Ear
Over-Ear
Price (USD)
$430
$330
HearWiki score
88
79
Released
2026
2025
Availability
Sold new
Sold new
Driver
90 mm planar magnetic
38 mm dynamic
Driver type
planar
dynamic
Driver size
90 mm
38 mm
Drivers per side
1
1
Frequency response
10 Hz - 50 kHz
12 Hz - 38.5 kHz
Sound signature
-
neutral
Impedance
-
120 Ω
Sensitivity
115 dB/mW
107.9 dB/mW
Bluetooth
5.3
-
Codecs
SBC, AAC, LC3, LC3plus, LDAC
-
Multipoint pairing
Yes
-
Battery life
40 h
-
Battery life (ANC on)
35 h
-
Full charge time
120 min
-
Active noise cancelling
Yes
No
ANC type
adaptive
-
Transparency mode
Yes
-
Companion app
Yes
-
Custom EQ
Yes
-
Wear detection
No
-
Controls
both
none
Weight
560 g
237 g
Detachable cable
-
Yes
USB-C
Yes
No
Connector
-
6.35 mm
Microphones
2
-
Call noise reduction
Yes
-
Call NR technology
AI ENC
-

What reviewers said

Audeze Maxwell 2 ANC

No summary yet - we haven't aggregated enough reviews.

Sennheiser HD 505

The Sennheiser HD 505 is a wired, open-back headphone that delivers a neutral, mid-focused sound with good bass extension and a smooth treble, drawing on the brand's classic house tuning. While it offers solid detail retrieval and a comfortable fit for many, its $330 price point and some design choices—like a proprietary cable—make it a mixed value compared to other options in Sennheiser's lineup. It lacks ANC and on-cable controls, focusing purely on passive, high-fidelity listening for home use.

  • Pro:Neutral, mid-focused sound with smooth treble
  • Pro:Good bass extension for an open-back design
  • Pro:Comfortable fit with lightweight build (237 g)
  • Con:Proprietary cable system limits aftermarket options
  • Con:Sparse accessories included in the box
  • Con:Higher price than similar-performing rivals

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

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