IP Audio - Encoder Selection Guide
| Feature | DB90-TX | DB91-TX | DB9000-TX | DB9009-TX |
| Excellent Audio Performances | YES | YES | YES | YES |
| High Quality HE-AAC (v.1 and v.2) and MPEG-1 Layer 3 Codecs | YES | YES | YES | YES |
| Uncompressed PCM | YES | YES | YES | YES |
| 32 kHz, 44.1 and 48 kHz sample rates support | YES | YES | YES | YES |
| Up to 320 kbps under MPEG-1 Layer 3 | YES | YES | YES | YES |
| Up to 56 kbps under HE-AAC | YES | YES | YES | YES |
| LEDs and Phones output for quick diagnostics | YES | YES | YES | YES |
| IP address pronunciation at startup (through the headphones) | YES | YES | YES | YES |
| Full Control and easy setup via a standard web browser | YES | YES | YES | YES |
| UPnP for easy discovery in Local Networks | YES | YES | YES | YES |
| Configuration and Monitoring via SNMP Ver.2C | YES | YES | YES | YES |
| SHOUTcast/Icecast compatible TCP/IP stream server (10 clients) | YES | YES | YES | YES |
| RTP Audio Compatible | YES | YES | YES | YES |
| Icecast Source Client functionality | YES | YES | YES | YES |
| Multicast RTP Sender | NO | YES | YES | YES |
| Up to 88 kbps under HE-AAC | NO | YES | YES | YES |
| Always On PCM encoder | NO | YES | NO | YES |
| Two Simutaneous Independent Encoders | NO | YES | NO | YES |
| RTP Sender with PCM | NO | YES | NO | YES |
| Up to 3 Simultaneous Multicast RTP Senders | NO | YES | NO | YES |
| Up to 3 Simultaneous Icecast Source Clients | NO | YES | NO | YES |
| SHOUTcast v1 Source functionality | NO | YES | NO | YES |
| Up to 3 Simultaneous SHOUTcast v1 Sources | NO | YES | NO | YES |
| Front panel audio level bar graphs | NO | YES | NO | YES |
| GP Inputs | NO | NO | NO | YES |
| Easy to read OLED Graphical Display | NO | NO | NO | YES |
| Intuitive Navigation Menu | NO | NO | NO | YES |
| Balanced audio inputs | NO | NO | YES | YES |
| Ethernet to RS-232 Redirector | NO | NO | YES | YES |
