Enigma2 receivers,
an overview.
Enigma2 boxes are Linux receivers for satellite, cable and terrestrial TV with an open-source interface. Here is what they are, who makes them and what to look for – especially if you want to watch on Apple TV with EnigmaTV.
What is Enigma2?
Enigma2 is the open-source TV software of Linux-based DVB receivers: tuning, TV guide, recordings, timeshift and plugins, all operated with the remote. It was developed by Dream Multimedia for the Dreambox and released as open source in 2006; since then many manufacturers and around twenty community teams have built on it.
The software is distributed as images – complete systems you flash onto the receiver. The same box can usually run several images.
What is OpenWebif?
OpenWebif is the web interface and HTTP API that runs on the receiver. It serves a browser interface and a JSON/XML API (port 80) for channels, the TV guide, recordings and timers, and live streams via the Enigma2 stream server (port 8001). It is part of almost every current image – and it is what EnigmaTV uses to talk to your receiver.
Community images
Images are maintained by enthusiast teams. Pick a receiver that the big images support – it keeps the box useful for years.
| Image | In short | Status 2025–2026 |
|---|---|---|
| OpenATV | The largest image, based on the OE-Alliance build system, supporting receivers from 50+ brands. | Very active 7.6 in 2025, 8.0 released 1 October 2026 |
| OpenPLi | Dutch-led image focused on stability and simplicity. | Active 9.2 (December 2025) – the last release for boxes with 128 MB flash |
| OpenViX | UK image from the World of Satellite community. | Active 6.8 (November 2025), 6.9 (2026) |
| OpenBH | Successor of the Black Hole image. | Active 5.6 (February 2026) |
| Egami | Italian OE-Alliance image, popular on Zgemma and AX boxes. | Active |
| PurE2 | Feature-rich image with a large plugin and skin feed, including Dreambox UHD models. | Active |
| OpenSPA | Spanish community image. | Active 8.7 (July 2026) |
| OpenDroid | OE-Alliance based image. | Active 8.1 (July 2026) |
Brands in 2026
The market has consolidated: some famous names are effectively end-of-line, while others release new 4K models.
Zgemma
Air Digital, China. Active – a wide range from budget HD combos to 4K twin-tuner boxes. H8.2H, H17 Combo, H11S, H7S.
GigaBlue
Impex-Sat, Germany. Active – UHD Quad 4K Pro launched in 2025. UHD Quad 4K Pro, UHD Trio 4K Pro, UHD UE 4K.
Octagon
Active – SF8008 family with 4K, twin and combo tuners, M.2 SSD slot on the V3 Supreme.
AB-COM (AB IPBox)
Slovakia. Active – PULSe 4K line with twin DVB-S2X tuners and hardware transcoding on selected models.
Edision
Greece. OS mio+ 4K with an S2X tuner plus a combo tuner and an OLED display.
Vu+
South Korea. Famous high-end boxes (Duo 4K SE, Uno 4K SE, Zero 4K); supply has been scarce in recent years, so many are bought second-hand.
Dreambox
Germany. The original Enigma2 maker; the company was liquidated in 2023. DM920 UHD, DreamOne and DreamTwo remain popular and are supported by community images.
Amiko, uClan, Maxytec
Budget and mid-range 4K boxes (Viper 4K V40, Ustym 4K PRO, Multibox 4K), often with OpenATV preinstalled.
Legacy brands
Mutant/AX (HD51, HD61), Formuler (F4 Turbo), Xtrend, Dinobot and others are no longer developed but many boxes still run current images.
Popular models at a glance
Specifications from manufacturer and retailer pages; versions and tuner options vary by market – check the exact variant before buying.
| Brand | Model | Tuners | Video | Highlights | Images | Status |
|---|---|---|---|---|---|---|
| Zgemma | H8.2H | DVB-S2/S2X + DVB-T2/C combo | Full HD | Budget, low standby power, card reader | OpenATV, OpenPLi, OpenViX, OpenBH | Tested with EnigmaTV |
| Zgemma | H17 Combo | DVB-S2X + DVB-T2/C | 4K | Gigabit LAN, Wi-Fi, CI, USB 3.0 | OpenATV, OpenPLi, OpenViX | Current |
| Zgemma | H11S | DVB-S2X | 4K HDR10 | Dual-band Wi-Fi, Bluetooth | OpenATV, OpenPLi, OpenViX, OpenBH | Current |
| Zgemma | H7S | 2× DVB-S2X + DVB-T2/C | 4K | Gigabit LAN, CI, 2.5" HDD bay | OpenATV, OpenPLi, OpenViX | Current |
| GigaBlue | UHD Quad 4K Pro | 2× DVB-S2 FBC (optional C/T2) | 4K | Gigabit, Wi-Fi + BT, 2× CI, HDD bay, display | OpenATV, OpenViX, OpenBH | New 2025 |
| GigaBlue | UHD Trio 4K Pro | DVB-S2X + DVB-C/T2 | 4K | Fast Wi-Fi, Bluetooth remote | OpenATV, OpenBH | Current |
| Octagon | SF8008 V3 Supreme | 2× DVB-S2X or S2X + C/T2 | 4K HDR | Gigabit, Wi-Fi, BT, M.2 NVMe slot | OpenATV, OpenViX, OpenBH, OpenSPA | Current |
| Edision | OS mio+ 4K | DVB-S2X + S2/T2/C | 4K | Wi-Fi, Bluetooth, OLED display | OpenATV, OpenViX, OpenBH | Current |
| AB-COM | PULSe 4K Rev. II | 2× DVB-S2X | 4K HDR | 2× CI, HDD drawer, dual transcoding | OpenATV, OpenViX, OpenBH | Current |
| Amiko | Viper 4K V40 | 2× S2X or S2X + T2/C | 4K HDR | Wi-Fi, USB 3.0, budget | OpenATV, OpenViX, OpenBH | Current |
| uClan | Ustym 4K PRO | Combo or twin S2X | 4K HDR | Gigabit, Wi-Fi, dual boot | OpenATV, OpenPLi | Current |
| Vu+ | Duo 4K SE | 2 slots: FBC S2X / FBC C / T2 | 4K | 3 GB RAM, Gigabit, 2× CI, HDD frame, transcoding | All major images | Hard to find |
| Vu+ | Uno 4K SE | 1 slot: FBC S2X or C | 4K | FBC tuner, transcoding | All major images | Hard to find |
| Dreambox | DM920 UHD | 2 slots (FBC S2X, C, T2) | 4K | Gigabit, 2× CI, HDD, display | OpenATV, OpenPLi, PurE2 | Legacy |
| Dreambox | DreamOne / DreamTwo | 2× DVB-S2X (Two adds CI) | 4K | Gigabit, Wi-Fi, BT | OpenATV 8.0, PurE2, OpenBH | Legacy |
| Mutant / AX | HD51 / HD61 | 2× DVB-S2(X) | 4K | HD61: hardware transcoding | OpenATV, OpenViX | Legacy |
What to look for
The right tuner
DVB-S2X is today's satellite standard. For cable or terrestrial TV choose a DVB-C/T2 or a combo box. Boxes with plug-in tuner slots can be changed later.
Enough tuners for every screen
Each Apple TV watching live TV uses a tuner (or a demodulator of an FBC tuner). An FBC tuner offers up to eight – ideal for several rooms plus recordings. Different satellite polarisations or bands may need Unicable or extra cables.
4K or HD
4K/HEVC boxes cost only a little more, decode UHD channels and are noticeably faster. An HD box is fine for HD channels on a budget.
Wired network
Streaming sends the full broadcast stream over your network. Connect the receiver by Ethernet; 100 Mbit/s is enough for several HD streams, gigabit helps with UHD and copying recordings.
Storage for recordings
Recordings need a USB drive, an internal 2.5" bay or an M.2 slot – or a network share. EnigmaTV's timeshift buffer is kept on Apple TV, not on the receiver.
Image support
Choose a model supported by OpenATV, OpenPLi, OpenViX or OpenBH. Image teams periodically drop old boxes with little memory.
Pay-TV modules
For encrypted channels, check for a CI slot (two for two decrypted channels) and confirm that your provider's module works in an Enigma2 receiver – CI+ modules are sometimes restricted to certified devices.
Standby
In deep standby a receiver cannot stream. Keep it on or in normal standby when you want to watch on Apple TV.
Using a receiver with EnigmaTV
- OpenWebif must be installed – it is by default on almost every image.
- The receiver and Apple TV must be on the same local network. EnigmaTV finds the receiver automatically.
- Live TV comes from the receiver's stream server on port 8001. If Require authentication for http streams is enabled on the receiver, enter the receiver's user name and password in EnigmaTV.
- Transcoding (port 8002) is only available on receivers with a hardware transcoder and is not needed on a good home network.
This overview is provided for orientation. Product names are trademarks of their owners; EnigmaTV is not affiliated with any of the manufacturers or image teams listed. Specifications and availability change – please check the manufacturer's or retailer's page before buying.