Austrian Audio Hi-X60 vs Beyerdynamic MMX 300

Short answer: the Austrian Audio Hi-X60. Both are rated 4.4/5 for sound quality (#8 and #9 of 134 over-ear headphones), and the Austrian Audio Hi-X60 costs $303.69 against $325 for the Beyerdynamic MMX 300, with sound quality a draw, the lower price decides it.

What the Austrian Audio Hi-X60 does well: A preference score of 91 comes from a response within about 1.7 dB of the Harman target, with sub-bass 1.4 dB and bass 1.0 dB above target for a full, slightly warm foundation. The catch: There is a 3.9 dB dip near 2 kHz, which can pull some vocals and snare detail slightly back, and a 3.1 dB peak near 5.6 kHz adds a touch of edge.

What the Beyerdynamic MMX 300 does well: It scores 91 on the Harman model, with bass from 60 to 200 Hz and the whole midrange within about half a dB of target. The tradeoff: The top end is uneven, with a 4.3 dB dip near 9.5 kHz followed by a 6.1 dB peak near 11.9 kHz and air above 10 kHz about 5.3 dB hot.

Buy the Austrian Audio Hi-X60. Both are rated the same for sound quality, and it costs $21.31 less than the Beyerdynamic MMX 300.

Looking for alternatives? See the complete Headphones rankings.

Specifications Side By Side

Related Headphone Comparisons

How Austrian Audio Hi-X60 compares with other leading options:

• Austrian Audio Hi-X60 vs Sennheiser HD 600
• Beyerdynamic MMX 300 vs Sennheiser HD 600
• Beyerdynamic MMX 300 vs Dyson Zone
• Sennheiser HD 600 vs Sennheiser HD 650
• Sennheiser HD 600 vs Sennheiser HD 599

Prices on this page were last checked October 10, 2026 at 5:37 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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The Two Headphones In Full

Austrian Audio Hi-X60: $303.69 Amazon eBay

Pros: A preference score of 91 comes from a response within about 1.7 dB of the Harman target, with sub-bass 1.4 dB and bass 1.0 dB above target for a full, slightly warm foundation. At 25 ohms and 110 dB SPL/V it plays loudly from a phone, and the closed back isolates from outside noise. The 320 g weight is moderate.

Cons: There is a 3.9 dB dip near 2 kHz, which can pull some vocals and snare detail slightly back, and a 3.1 dB peak near 5.6 kHz adds a touch of edge. It has no built-in microphone, unlike the Beyerdynamic MMX 300, so it is less suited to calls and gaming.

Full Austrian Audio Hi-X60 review and specifications →

Back	Closed
Built-in Microphone	No
Connection	Wired
Deviation From Target	1.65 dB standard deviation
Driver Type	Dynamic
Form Factor	Over-ear
Frequency Response	5Hz - 28kHz (Manufacturer specified)
Harman Preference Score	91 (measured by oratory1990, via AutoEQ)
Impedance	25 ohms
Sensitivity	110 dB SPL/V
Tonal Tilt	-0.20 (negative is warmer, positive brighter)
Weight	0.7 lbs (320 g)

EQ preset to match the Harman target

Set a preamp of -4.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-9.8 dB	0.70
Peak	138 Hz	-14.9 dB	0.60
Peak	81 Hz	+18.3 dB	0.36
Peak	1,919 Hz	+4.6 dB	3.37
Peak	1,025 Hz	-2.1 dB	2.33
High shelf	10,000 Hz	-3.2 dB	0.70
Peak	9,712 Hz	+2.5 dB	2.24
Peak	3,637 Hz	+1.6 dB	1.17
Peak	2,676 Hz	-3.1 dB	5.21
Peak	5,733 Hz	-3.6 dB	5.64

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Austrian Audio Hi-X60 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Austrian Audio Hi-X60 vs Sennheiser HD 600

Beyerdynamic MMX 300: $325.00 Amazon eBay

Pros: It scores 91 on the Harman model, with bass from 60 to 200 Hz and the whole midrange within about half a dB of target. A built-in microphone and closed back make it practical for calls, gaming and noisy rooms, and 32 ohms with 96 dB SPL sensitivity runs from a phone or laptop. Its tuning is slightly warm.

Cons: The top end is uneven, with a 4.3 dB dip near 9.5 kHz followed by a 6.1 dB peak near 11.9 kHz and air above 10 kHz about 5.3 dB hot. That can make cymbals and strings sound sharp or glassy. Sub-bass is about 3.2 dB under target, so the deepest bass notes lack some rumble.

Full Beyerdynamic MMX 300 review and specifications →

Released	Feb 2017 (9 years ago)
Back	Closed
Built-in Microphone	Yes
Connection	Wired
Deviation From Target	1.73 dB standard deviation
Driver Type	Dynamic
Form Factor	Over-ear
Frequency Response	5Hz - 35kHz (Manufacturer specified)
Harman Preference Score	91 (measured by oratory1990, via AutoEQ)
Impedance	32 ohms
Sensitivity	96 dB SPL
Tonal Tilt	-0.09 (negative is warmer, positive brighter)

EQ preset to match the Harman target

Set a preamp of -5.8 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	+7.1 dB	0.70
Peak	73 Hz	-7.9 dB	0.69
Peak	3,829 Hz	+3.8 dB	3.33
Peak	79 Hz	+6.7 dB	2.65
Peak	5,667 Hz	-4.2 dB	6.00
High shelf	10,000 Hz	-8.0 dB	0.70
Peak	8,787 Hz	+3.1 dB	1.63
Peak	216 Hz	+1.9 dB	3.10
Peak	142 Hz	-1.4 dB	2.61
Peak	1,207 Hz	+0.6 dB	1.60

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Beyerdynamic MMX 300 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Beyerdynamic MMX 300 vs Dyson Zone
  • Beyerdynamic MMX 300 vs Sennheiser HD 600