SonoFlow-Pro HQ51-Black
LDAC support triples wireless data throughput, and the 40mm diamond-like drivers—tuned by Grammy-winning engineer Luca Bignardi—deliver dual Hi-Res certified audio. QuietMax dual-feed ANC cuts noise by over 45dB, while a 100-hour battery (65 with ANC) and a 5-minute quick charge for 10 hours of playback eliminate charging anxiety on long journeys. It’s best for budget-conscious commuters and travelers who prioritize marathon ANC and Hi-Res streaming over critical studio accuracy.
form factor over-ear
driver type diamond-like
driver size mm 40
impedance ohms 32
Wireless Yes
active noise cancellation Yes
bluetooth version 5.4
battery life hours 100
52 Overall Score
Price CA$120
Snapshot
Pros & Cons
Pros
- Strong battery (98th percentile) 98th
- Strong sound (93rd percentile) 93rd
- Strong anc (81st percentile) 81st
- Strong user sentiment (71st percentile) 71st
Cons
- Below average comfort (8th percentile)
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Weight | 0.5 kg / 1.2 lbs |
| Ear Cushion | protein leather |
Audio
| Driver Type | diamond-like |
| Driver Size | 40 |
| Freq Max | 40000 |
| Impedance | 32 |
| Hi-Res Audio | Yes |
| Codecs | LDAC |
Noise Control
| ANC | Yes |
| ANC Type | QuietMax dual-feed |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.4 |
Battery
| Battery Life | 100 |
| Fast Charging | 5-minute charge for 10 hours playback |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
vs Competition
| Spec | SonoFlow-Pro HQ51-Black | Sennheiser MOMENTUM 4 | Sony ULT WEAR WHULT900N/B | Technics EAH-A800 | Bose QuietComfort Ultra | TOZO HT2 |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | diamond-like | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | 40 | 42 | 40 | 40 | - | 40 |
| Impedance Ohms | 32 | 470 | 314 | 34 | 32 | 32 |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Open Closed Back | - | closed | closed | closed | closed | closed |
| Bluetooth Version | 5.4 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 |
| Battery Life Hours | 100 | 60 | 30 | 50 | 24 | 60 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| SonoFlow-Pro HQ51-Black | 80.6 | 68.2 | 35 | 93.2 | 98.2 | 7.8 | 70.6 | 66.7 | 67.2 |
| Sennheiser MOMENTUM 4 Compare | 98 | 85.3 | 92.4 | 97.8 | 90.7 | 87.7 | 37.3 | 98.1 | 67.2 |
| Sony ULT WEAR WHULT900N/B Compare | 98 | 85.3 | 77.8 | 95.6 | 76.1 | 53.7 | 70.6 | 98.9 | 87.5 |
| Technics EAH-A800 Compare | 93.4 | 98.3 | 77.8 | 97.2 | 85.9 | 53.7 | 52.9 | 97.4 | 60 |
| Bose QuietComfort Ultra Compare | 93.4 | 79.2 | 95.7 | 52.9 | 72.7 | 81 | 70.6 | 99.2 | 73 |
| TOZO HT2 Compare | 93.4 | 83.2 | 95.7 | 99.1 | 90.7 | 81 | 87.1 | 83.1 | 87.5 |
Price
Value & Pricing
From CA$120
Amazon.ca 1 offer From CA$120
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
