Audio Note CD 4.1x
Audio Note CD 4.1x
Level 3 single-chassis CD player on the 4.1x platform — ECC88 valve output and the AD1865 converter, run without oversampling.
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The long view
About the
Audio Note CD 4.1x.
The CD 4.1x is the Level 3 single-chassis CD player. No-oversampling conversion on the Analogue Devices AD1865, a valve output stage on ECC88, single-ended RCA output. It sits above the CD 3.1x/II in component tier and below the CD 5.1x reference one-box.
Audio Note CD 4.1x across 4 variants.
Four CD players combining transport + DAC in one chassis. Each player sits at the same tier as the DAC inside it — the CD 2.1x/II contains a DAC 2.1x equivalent stage, the CD 3.1x/II contains a DAC 3.1x equivalent stage, and so on through the tier ladder. Same NOS R2R conversion, same valve output topology, same tier-matched output transformer.
| Model | Tier | Output Stage | Balanced Output | Notes | Tier |
|---|---|---|---|---|---|
| CD 2.1x/II | 2 | Valve, copper-coupled | No | Level 2 single-chassis CD player | — |
| CD 3.1x/II | 3 | Valve, transformer-coupled | No | Level 3 step-up | — |
| CD 4.1x Balanced | 4 | Valve, balanced output | Yes | Level 4 — balanced output | — |
| CD 5.1x | 5 | Valve, AN silver throughout | Yes | Level 5 flagship single-box CD | — |
