Devices that still work when the internet doesn't.

Audio & Video / CD player

Denon DCD-900NE

D0 No Radio — No radio at all. It cannot phone home.

The unplug test

It plays the disc in the tray, or the files on a USB stick, the same way regardless of what your network is doing, because it has never had a network connection to lose. Insert a CD or plug in a USB drive, press play. There is no app, no account, and no cloud dependency to describe.

Why this tier: The manufacturer's own info sheet gives a complete ports table: optical digital out, coaxial digital out, gold-plated RCA analog out, a Denon proprietary remote-control-bus jack for chaining components, and a front USB-A port for playing files from a USB stick. There is no Wi-Fi, Bluetooth, Ethernet, or app anywhere in the document — the USB port is a playback source, not a network or computer connection.

Specifications

Account requirednone
Works offlinefully
Forced firmware updatesno
Radiosnone
FCC IDno intentional-radiator grant found
Local controlnone
Phones homenone
Parts availableunknown
Availabilityin stock
Price band$500-600 (seen 2026-09-02)
Vendor risk 0 / 3

Where to buy

Open questions

Sources

Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.

History

Last verified 2026-09-02 — 4 days ago.