No. 5909 vs DALI IO8
The IO8's sensitivity is 93 dB against the No. 5909's 97 dB and its impedance 25Ω against 32Ω. Both share bit depth (24-bit) and max sample rate (96 kHz).
AI-generated product photo — not official manufacturer imagery.
HeadphonesWireless HeadphonesOver-Ear Headphones
About the No. 5909
The Mark Levinson № 5909 are premium over-ear wireless headphones featuring adaptive active noise cancellation (ANC) with three modes (High, Adaptive, Low), Ambient Aware mode, and a four-microphone array with Smart Wind Adaption for clear calls. They deliver reference-quality sound via expertly tuned 40mm beryllium-coated dynamic drivers optimized to the HARMAN Curve, supporting Hi-Res Audio with LDAC codec, 24-bit/96kHz processing, and Bluetooth 5.1 connectivity including AAC and aptX Adaptive. Designed for travel with a luxurious anodized aluminum frame, premium leather headband and replaceable ear cushions, available in Pearl Black, Ice Pewter, and Radiant Red. Battery life up to 34 hours (30 hours with ANC), quick charge for 6 hours from 15 minutes. Includes hard-shell carrying case and multiple cables/adaptors. Praised for premium build, sound quality, noise isolation, and comfort in reviews.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 97 dB SPL @ 1W/1m
- Impedance
- 32Ω
- Frequency Response
- 10 Hz - 40 kHz
- Power Handling
- 100W
Headphone Design
Headphone driver and design characteristics
- Type
- over-ear
- Driver Type
- dynamic
- Open/Closed Back
- Closed Back
- Driver Size
- 40mm
Connectivity
Input and output connections
- Bluetooth
- Yes
- Bluetooth Codecs
- LDAC, AAC, aptX Adaptive
- Analog Inputs
- 3.5mm audio cable, 3.5mm to 6.3mm adaptor, airplane adaptor
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 205.4 × 202.6 × 65.4 mm (W × H × D)
- Weight
- 0.34 kg (1 lbs)
Key Specifications
Sensitivity: 97 dB
Impedance: 32Ω
Frequency: 10-40000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions