CCA Castor Pro
Anker Space A40
What Buyers Say
CCA Castor Pro
The KZ Castor Pro Bass Enhanced IEMs are overwhelmingly praised for their powerful, controlled bass and excellent clarity, especially when paired with a DAC. Users highlight the dual 10mm drivers, tuneable switches, and great value for the price, though comfort and stock ear tips are common complaints. A few users report durability issues or find the sound less impressive than cheaper alternatives, but the majority consider these a fantastic budget option for bass lovers.
Pros
- Powerful and controlled bass
- Excellent clarity and detail
- Great value for money
- Tuneable bass/treble switches
- Dual 10mm dynamic drivers
Cons
- Uncomfortable stock ear tips
- Mediocre overall comfort
- Requires DAC for best performance
- Durability concerns for some units
- Sound quality drops on low-end devices
Anker Space A40
The Soundcore Space A40 earbuds are widely praised for their excellent sound quality, customizable EQ via the app, and strong noise cancellation. Users appreciate the long battery life, fast charging, and comfortable fit with multiple ear tip sizes. Some note that the ANC is not as powerful as premium competitors and that Bluetooth connection can occasionally drop in bumpy vehicles or certain environments. Overall, they are considered great value for the price.
Pros
- Excellent sound quality
- Customizable EQ via app
- Good noise cancellation
- Long battery life
- Fast charging
Cons
- ANC not as strong as premium competitors
- Occasional Bluetooth connection drops
- Touch controls limited to certain options at once
- Battery life slightly less than advertised
- Left ear discomfort for some users
Scores
Specifications
| CCA Castor Pro | Anker Space A40 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | — | true wireless |
| Ear Tips | — | 5 sizes of silicone ear tips |
| Weight | — | 0.06 kg★ |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 10 mm | 11 mm★ |
| Drivers | 2 | 2 |
| Freq Min | — | 20 Hz★ |
| Freq Max | — | 20 kHz★ |
| Impedance | 16 Ω | 16 Ω |
| Hi-Res Audio | ✓ | ✓ |
| Codecs | KZ Castor Pro Tunable in Ear Monitor, HiFi Improved Bass in Ear Headphone, Dual-Dynamic Driver Gaming Earbuds, IEM Earphones with 2PIN-C Detachable Cable | LDAC |
| Surround | — | Soundcore by Anker Space A40 Auto-Adjustable Active Noise Cancelling Wireless Earbuds, Reduce Noise by Up to 98%, 50H Playtime, Hi-Res Sound, App Customization, Wireless Charge (Renewed) Blue (Refresh |
| Noise Control | ||
| ANC | — | ✓★ |
| ANC Type | — | adaptive |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | — | ✓★ |
| Bluetooth | — | 5.2★ |
| Multipoint | — | ✓★ |
| Wired Connector | — | Bluetooth |
| Earbud Battery | ||
| Battery Life | — | 10 hrs★ |
| Charge Time | — | 2 hrs★ |
| Fast Charging | — | 10 min for 4 hours playback |
| Charging | — | USB-C★ |
| Case Battery | ||
| Case Battery | — | 50 hrs★ |
| Case Charging | — | USB-C★ |
| Wireless Charging | — | ✓★ |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | — | 6★ |
| NC Mic | — | ✓★ |
| Features | ||
| Voice Assistant | — | Siri, Google Assistant |
| Touch Controls | ✓ | ✓ |
| App | — | soundcore |
| Gaming Mode | ✓★ | — |
| Bone Conduction | — | ✗ |
| Water Resistance | — | IPX4 |
Pros & Cons
CCA Castor Pro
- Strong social proof (96th percentile)96th %ile
- Strong sound (85th percentile)85th %ile
- Strong user sentiment (67th percentile)
- Below average comfort (29th percentile)
- Below average anc (31st percentile)
- Below average build (34th percentile)
Anker Space A40
- Strong mic (98th percentile)98th %ile
- Strong connectivity (97th percentile)97th %ile
- Strong anc (97th percentile)97th %ile
- Strong sound (94th percentile)94th %ile
Pricing
Verdict
Scores 85 overall, wins 7 of 7 usage categories and 17 of 36 specs.
