Verdict
Head-to-head · Best Open-back Headphones For Mixing

AKG K-712 Pro vs Sennheiser HD 650

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Sennheiser HD 650 comes out ahead by a clear margin (4.4 vs 4.1). The gap is mostly about audiophiles seeking neutral reference sound — read the strengths below before deciding.

AKG K-712 Pro
Ranked #4 in Best Open-back Headphones For Mixing
AKG K-712 Pro
8 sources3 derived$469.99as of Sep 25

The AKG K712 Pro stands out for its exceptional soundstage and neutral tonal balance, making it well-suited for professional mixing and mastering tasks. Reviewers note its wide, open audio presentation and ability to reveal subtle details in music. However, the headphones suffer from an overly emphasized bass region that can muddy low frequencies and a treble response that lacks brightness and energy. While comfortable for extended use and built to last, these headphones may not satisfy those seeking a more dynamic or vivid sound signature.

Strengths
  • — Delivers wide, open, and immersive soundstage ideal for mixing and critical listening
  • — Features transparent neutral tonal balance suitable for professional audio work
  • — Includes comfortable self-adjusting headband and soft replaceable velour ear pads for long listening sessions
Watch-outs
  • — Bass is overly accentuated in the 200-300Hz region, leading to a warm and hazy sound
  • — Treble lacks sparkle and vibrance, with a dip around 9-10kHz that may feel veiled or less energetic
Sennheiser HD 650
Higher ratedRanked #2 in Best Open-back Headphones For Mixing
Sennheiser HD 650
9 sources3 derived$299as of Sep 25

The Sennheiser HD 650 remains a benchmark reference headphone with its 42mm dynamic drivers and 300 ohm impedance delivering exceptional accuracy and musicality. Reviewers consistently praise its natural sound signature and build quality, though its high impedance means it requires a quality amplifier to fully realize its potential. While the proprietary cable connections may limit compatibility, the HD 650 continues to be considered a classic choice for audiophiles seeking neutral, transparent sound reproduction.

Strengths
  • — Nominal impedance of 30/300 ohms provides excellent compatibility with high-end amplifiers
  • — Iconic plastic design with spring steel headband offers comfortable long-term wear
  • — Natural and musical sound signature praised by audiophiles for its neutrality and transparency
Watch-outs
  • — Cable termination uses proprietary connectors that may limit compatibility with some devices
  • — Lack of isolation and sound leakage

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

AKG K-712 Pro

The AKG K-712 Pro delivers a wide soundstage and neutral balance, but its bass emphasis and lack of treble sparkle make it less appealing than the Focal Clear MG Pro, which offers smoother mids and better clarity.

Sennheiser HD 650

The HD 650 offers unmatched neutrality and build quality compared to the HD 490 Pro, which has less neutral high-mids and treble. While the HD 490 Pro provides better sub-bass extension, the HD 650's 300 ohm impedance and proprietary connectors make it more suited for audiophiles with high-end amplifiers, unlike the more versatile LCD-X or K-712 Pro.

Specs side-by-side

SpecAKG K-712 ProSennheiser HD 650
DesignOpen back, Over-earOpen-back, Over-ear
Impedance62 Ohm300 ohms
Connectormini XLR1/4" (6.35 mm) stereo jack plug
Sensitivity105 dB SPL/V @ 1 kHz103 dB (1 V)
Frequency Response10 Hz – 39800 Hz10 Hz - 41,000 Hz
Cable3m straight cable, 3m coiled cable3 m
Weight235 g260 g
DriverOpen42mm dynamic
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