Compare DALI IO-4 vs DALI IO-6 vs Sennheiser PXC 550-II
Connectivity
Ports
3.5mm + USB-C
3.5mm + USB-C
Micro-USB
Wireless Connectivity
Bluetooth 5.0
Bluetooth 5.0
Bluetooth 5
Construction
Carrying Case
Travel case
Colors
Army Green, Chalk White, Iron Black, Caramel White
Army Green, Chalk White, Iron Black, Caramel White
Drivers
50 mm free edge paper fibre cone
50 mm free edge paper fibre cone
Dynamic, 32mm
Form Factor
Over-ear headphones, wireless headphones
Over-ear headphones, wireless headphones
Headphone Type
Closed headphones, Dynamic headphones
Closed headphones, Dynamic headphones
Dynamic headphones
Material
Closed back circumaural (over ear)
Closed back circumaural (over ear)
Microphone
MEMS
Dimensions
Size | Depth
63 mm
Size | Height
174 mm
Size | Width
136 mm
Weight
320 g
325 g
227 g
Function
Bluetooth Codecs
AAC, aptX, aptX HD
AAC, aptX, aptX HD
SBC, aptX, aptX Low Latency, AAC
Noise Cancellation
No
Yes
Weather Resistance
IP53
IP53
Performance
Battery Life
60 h
60 h
20 h (ANC + A2DP) / 30 h (ANC + wired)
Charging Time
2.5 h
2.5 h
Frequency Response
10Hz - 20kHz
10Hz - 20kHz
17Hz - 23kHz
Impedance
25 ohms (Via 3.5mm)
25 ohms Via 3.5mm
Active: 490 ohms / Passive: 46 ohms
Max Sound Level
100 dB
100 dB
Microphone Frequency Response
50Hz - 10kHz
Sensitivity
200 mV rms / 175 mV rms
200 mV rms / 175 mV rms
110 dBSPL
Production
Accessory
Flight adapter included
Debut
2019-10
2019-10
2019 IFA
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