Klipsch CDT-3650-C II vs Yamaha NS-IC800
The Klipsch CDT-3650-C II is more sensitive (93 dB vs 90 dB), so it plays louder per watt and costs less ($125 vs $200). The Yamaha NS-IC800 plays lower (50 Hz vs 63 Hz).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| CDT-3650-C II | NS-IC800 | |
|---|---|---|
| Receivers and amps that drive it | 27 of 29 | 27 of 29 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| CDT-3650-C II | NS-IC800 | |
|---|---|---|
| Impedance | 8 Ω | 8 Ω |
| Sensitivity | 93 dB (2.83 V, 1 m) | 90 dB (2.83 V, 1 m) |
| Low end | 63 Hz | 50 Hz |
| Drivers | 1 × 25 mm, 1 × 165 mm | 1 × 25 mm, 1 × 203 mm |
| Size | 9×9×4 in | 11×11×4 in |
| Weight | 3.08 kg (6.8 lb) | 1.9 kg (4.2 lb) |
| MSRP | $125 each (MSRP, September 2026) | $200 a pair (MSRP, September 2026) |
Every spec and pairing: Klipsch CDT-3650-C II, Yamaha NS-IC800.
Try either one in your own room.
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References
- Klipsch CDT-3650-C II: Spec sheet, d2um2qdswy1tb0.cloudfront.net, retrieved September 15, 2026
- Klipsch CDT-3650-C II: Retailer listing, walmart.com, retrieved September 15, 2026
- Yamaha NS-IC800: Spec sheet, usa.yamaha.com, retrieved September 15, 2026
- Yamaha NS-IC800: Retailer listing, worldwidestereo.com, retrieved September 15, 2026
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