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Audio-Technica ATH-ADX5000 vs Grado Signature HP100 SE

Both are dynamic open-back headphones.

The ATH-ADX5000 is 250 g lighter, at 270 g against 520 g.

The ATH-ADX5000 needs 17 dB more power to reach a loud 110 dB peak, so it asks more of the amplifier.

The ATH-ADX5000 lists for $296 less.

Side by side

ATH-ADX5000Signature HP100 SE
Driver
Dynamic
Dynamic
Diaphragm
Tungsten-coated diaphragm
Paper composite cone; copper-plated aluminum voice coil
Driver size
58 mm
52 mm
Enclosure
Open-back
Open-back
Weight
270 g
520 g
ATH-ADX5000 is 250 g lighter
Impedance
420 ohms
38 ohms
Sensitivity
100 dB/mW
117 dB SPL @ 1 mW
Power for 110 dB
10.0 mW, 2.05 V
0.20 mW, 0.09 V
ATH-ADX5000 needs 17 dB more
Drive
Easy to drive
Easy to drive
Frequency response
5 Hz – 50 kHz
3.5 Hz – 51.5 kHz
Made in
Japan
United States
Released
2017
2024
List price
$2,199
$2,495
ATH-ADX5000 is $296 less

From each maker’s published figures; sources are on each headphone’s page. Power for 110 dB is worked out from sensitivity and impedance.

Amplifiers that drive both

How the matching works

Each of these has 10 dB or more in reserve above a loud 110 dB peak on both headphones, so one amplifier serves either.

Where to buy the ATH-ADX5000

List $2,199

Retailer prices checked 2026-10-21. We may earn a commission on purchases. How this works

Where to buy the Signature HP100 SE

List $2,495

Retailer prices checked 2026-10-21. We may earn a commission on purchases. How this works

More head to head