Compare Bowers & Wilkins PX7 vs DALI IO-6 vs Sennheiser HD 820
Variants
HD 820
HDV 820
Connectivity
Ports
3.5mm stereo jack + USB-C
3.5mm + USB-C
[Input] 6.35 mm + 4.4 mm + XLR-4 | [Output] XLR, RCA, Coax, Optical, USB-B
Wireless Connectivity
Bluetooth
Bluetooth 5.0
Construction
Cable
1.2m stereo audio cable + 1.2m USB-A to USB-C cable
3 m
Carrying Case
Yes
Travel case
Colors
Space Grey, Silver, Carbon
Army Green, Chalk White, Iron Black, Caramel White
Drivers
43.6mm full range
50 mm free edge paper fibre cone
Form Factor
Wireless Headphones, Over-Ear
Over-ear headphones, wireless headphones
Headphone Type
Dynamic headphones
Closed headphones, Dynamic headphones
Material
Closed back circumaural (over ear)
Microphone
4x mics for ANC + 2x mics for telephony
Speakers
Dynamic, closed
Dimensions
Weight
310 g
325 g
Function
Bluetooth Codecs
AptX Adaptive, aptX HD, aptX Classic, AAC, SBC
AAC, aptX, aptX HD
Bluetooth Profiles
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
5hrs with 15min charge
Noise Cancellation
Yes
Yes
Weather Resistance
IP53
Performance
Battery Life
30 hrs Bluetooth with ANC
60 h
Charging Time
2.5 h
Frequency Response
10Hz ~ 30kHz
10Hz - 20kHz
103 dB at 1 kHz, 1V
Impedance
20k Ohms
25 ohms Via 3.5mm
300 ohms
Max Sound Level
100 dB
103 dB at 1 kHz, 1V SPL
Sensitivity
200 mV rms / 175 mV rms
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Accessory
Flight adapter included
Debut
2019-10
2019-10
Made In
Germany
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