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CAD-300SEI versus CAD-805RS
15 W SET integrated amplifier versus 50 W SET monoblock amplifiers: differing power scale and configuration.
Both embody Cary Audio's SET character, yet in distinct formats: integrated with headphones versus reference monoblocks.
The CAD-300SEI employs the 300B triode; the CAD-805RS offers a choice between 845 and 211 tubes with adjustable feedback.
Monoblocks require one block per channel and sensitive speakers due to the SET topology.
| Appearance | CAD-300SEI | CAD-805RS |
|---|---|---|
| Format | Stereo integrated + headphones | Monoblock (one block per channel) |
| Topology / Power | Single-ended triode; 15 W Class A | Pure single-ended; 50 W Class A |
| Output valves | 300B ×2 | 845 or 211 (user-selectable) |
| Headphones | Amplifier with complete circuit stage | No (power amplifier) |
| Feedback | According to SET 300B design | Variable 0–10 dB |
When it fits CAD-300SEI
For sensitive speakers or headphones in a single low-power SET integrated.
When it fits CAD-805RS
When seeking SET monoblocks with greater power, choose 845/211 and adjustable feedback.
Verified comparison on 19 June 2026. Based on official Cary Audio specifications.