Audeze MM-500 vs Sendy Peacock

Short answer: the Audeze MM-500. It ranks #134 of 216 over-ear headphones by sound quality, rated 3.4/5, at $1,699. The Sendy Peacock ranks #150, rated 3.3/5, at $1,499, $200 cheaper, a saving that is not big enough to make up the sound-quality gap.

Why pick the Audeze MM-500: The midrange from 200 Hz to 3 kHz tracks the Harman target within about 0.3 dB, so voices and instruments in the core of the music sound accurate. The tradeoff: Treble from 6 to 10 kHz sits about 7.3 dB under target, with a 15 dB dip near 9.6 kHz, so cymbals, hi-hats and vocal air sound dark and muffled.

What the Sendy Peacock does well: The open-back 88mm planar driver gives a spacious presentation, and at 50 ohms and 103 dB sensitivity it is easy enough to drive from a modest amp or dongle. The tradeoff: Presence is about 4 dB low and a 8.7 dB dip near 9.9 kHz softens cymbals and string detail, so the top end sounds subdued.

Buy the Audeze MM-500. It is rated higher for sound quality, and saving $200 with the Sendy Peacock does not make up for the sound-quality gap.

Still deciding? The full Headphones rankings cover every ranked option.

Specifications Side By Side

Related Headphone Comparisons

More worthwhile head-to-heads for Audeze MM-500:

• Denon AH-D9200 vs Audeze MM-500
• Audeze MM-500 vs Audio-Technica ATH-AWKT
• Audeze MM-500 vs Fostex TH900mk2
• Denon AH-D9200 vs Sendy Peacock
• Sendy Peacock vs Audio-Technica ATH-AWAS

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The Two Headphones In Full

Audeze MM-500: $1,699.00 Amazon eBay

Pros: The midrange from 200 Hz to 3 kHz tracks the Harman target within about 0.3 dB, so voices and instruments in the core of the music sound accurate. The planar magnetic driver is easy to power at 18 ohms and 100 dB per mW, so a phone or basic dongle can drive it. The open back gives a wide, airy presentation for critical listening at home.

Cons: Treble from 6 to 10 kHz sits about 7.3 dB under target, with a 15 dB dip near 9.6 kHz, so cymbals, hi-hats and vocal air sound dark and muffled. Sub-bass is about 5.8 dB light, which loses rumble in electronic and cinematic music. At 495 g it is heavy for long sessions, the open back leaks sound and offers no isolation, and the Denon AH-D7200 has a higher rating at a much lower price.

Full Audeze MM-500 review and specifications →

Back	Open
Connection	Wired
Deviation From Target	2.98 dB standard deviation
Driver Type	Planar magnetic
Form Factor	Over-ear
Frequency Response	5Hz - 50kHz (Manufacturer specified)
Harman Preference Score	69 (measured by oratory1990, via AutoEQ)
Impedance	18 ohms
Sensitivity	100 dB/mW
Sub-bass Extension	Falls 6 dB below target at 32 Hz (-6.1 dB at 30 Hz)
Tonal Tilt	-0.52 (negative is warmer, positive brighter)
Weight	1.1 lbs (495 g)

EQ preset to match the Harman target

Set a preamp of -5.3 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	+5.6 dB	0.70
Peak	8,516 Hz	+7.3 dB	1.16
Peak	2,405 Hz	-1.6 dB	0.21
Peak	109 Hz	-1.9 dB	0.31
Peak	4,306 Hz	+4.4 dB	4.44
High shelf	10,000 Hz	-3.6 dB	0.70
Peak	1,954 Hz	+2.2 dB	3.28
Peak	2,899 Hz	-2.3 dB	3.50
Peak	1,242 Hz	-1.1 dB	2.48
Peak	2,185 Hz	+0.7 dB	2.52

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Audeze MM-500 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Audeze MM-500 vs Denon AH-D9200
  • Audeze MM-500 vs Audio-Technica ATH-AWKT
  • Audeze MM-500 vs Fostex TH900mk2

Sendy Peacock: $1,499.00 Amazon eBay

Pros: The open-back 88mm planar driver gives a spacious presentation, and at 50 ohms and 103 dB sensitivity it is easy enough to drive from a modest amp or dongle. Bass from 60 to 200 Hz lands almost exactly on target, and low mids are slightly full at about 1.6 dB above it, giving a warm, smooth tone.

Cons: Presence is about 4 dB low and a 8.7 dB dip near 9.9 kHz softens cymbals and string detail, so the top end sounds subdued. Sub-bass is roughly 5 dB under target. At 578 g it is heavy, and the open back leaks sound and offers no isolation.

Full Sendy Peacock review and specifications →

Released	Aug 2023 (3 years ago)
Back	Open
Connection	Wired
Deviation From Target	2.78 dB standard deviation
Driver Type	Planar magnetic
Drivers	1 x 88mm planar magnetic
Form Factor	Over-ear
Frequency Response	20Hz - 40kHz (Manufacturer specified)
Harman Preference Score	65 (measured by oratory1990, via AutoEQ)
Impedance	50 ohms
Sensitivity	103 dB
Sub-bass Extension	Falls 6 dB below target at 40 Hz (-7.1 dB at 30 Hz)
Tonal Tilt	-0.90 (negative is warmer, positive brighter)
Weight	1.3 lbs (578 g)

EQ preset to match the Harman target

Set a preamp of -5.7 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	+6.3 dB	0.70
Peak	127 Hz	-3.6 dB	0.26
Peak	4,272 Hz	+3.4 dB	0.39
Peak	10,000 Hz	+1.2 dB	1.54
Peak	974 Hz	-3.5 dB	2.18
High shelf	10,000 Hz	-4.5 dB	0.70
Peak	4,260 Hz	+2.8 dB	3.45
Peak	2,978 Hz	-2.7 dB	2.66
Peak	1,869 Hz	+2.6 dB	4.50
Peak	64 Hz	-0.6 dB	2.10

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Sendy Peacock (oratory1990 measurement)
• Head-to-Head Comparisons
  • Sendy Peacock vs Fostex TH900mk2
  • Sendy Peacock vs Audio-Technica ATH-AWAS
  • Sendy Peacock vs Denon AH-D9200