FONESTAR NMX-88
MRP - Rs. 3,03,990
FONESTAR NMX-88 8 x 8 audio matrix with DSP: AEC, AFC, ANS, AGC, USB sound card, 8 GPIO, 16 scenes, 1 U. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Inputs and outputs
| Analogue inputs | 8 balanced lines, gain selection in 3 dB steps 0 dB to -48 dB; 24 mV RMS (-30 dBu) to 6.15 V RMS (+18 dBu), 5.4 kΩ; 110 dB dynamic range; euroblock |
| Phantom | 48 V, selectable (10 mA max.) |
| Network | 1 LAN port, 10/100 Base‑T, RJ‑45 |
| Control ports | 1 RS‑232 and 1 RS‑485, euroblock |
| Analogue outputs | 8 balanced lines, max. 6.15 V RMS (+18 dBu), 600 Ω; 112 dB dynamic range; euroblock |
| USB | Sound card input and output channel |
| GPIO | 8, configurable |
Processing and control
| DSP | 40‑bit floating point, 400 MIPS, 1600 MFLOPS |
| Algorithms | AEC, AFC, ANS, AGC |
| Modules | 5 per input (expander, compressor, noise gate, AGC, priority, parametric filter, graphic filter, AFC, delay); 4 per output (crossover, parametric filter, graphic filter, delay, limiter) |
| Functions | Stereo link; auto mixing; matrix volume assignment; 8 GPIO; 16 scenes; PTZ camera tracking control |
| Control | Modular PC software; app for a custom user interface; UDP, RS‑232 and RS‑485 protocol |
General
| Digital audio | 48 kHz, 24 bits |
| Latency | < 3 ms |
| Response | 20‑20,000 Hz ± 0.3 dB |
| Distortion | THD+N < 0.002% @ 4 dBu |
| S/N ratio | 112 dB |
| Power supply | 100‑240 V AC, 50‑60 Hz, 28 W |
| Dimensions | 482 x 44 x 268 mm (depth), 1 U 19 inch rack |
| Weight | 2.9 kg |
| Colour | Black |
| Optional | NMX‑WP wall control unit; TAB‑10‑16 10 inch touch screen |
Product overview
The FONESTAR NMX-88 is an 8 x 8 audio matrix with DSP, a USB sound card channel, 8 GPIO, echo and feedback cancellation, noise suppression and automatic gain control, in 1 U of a 19 inch rack.
Based on a 40-bit floating point DSP with high processing power (400 MIPS, 1600 MFLOPS), the NMX-88 offers a complete and versatile solution for handling and processing audio signals. It has 8 analogue inputs and 8 analogue outputs, plus a USB sound card input and output channel for playback and recording on a computer or for video calls. The installer configures sound systems with multiple inputs and outputs in powerful modular software, and the end user gets an easy way to control the sound from custom touch screen panels or NMX-WP wall remotes. It suits conference systems and video call rooms, and music systems in restaurants, hotels and shopping centres.
| Analogue channels | 8 x 8 |
| Latency, 48 kHz / 24 bits | < 3 ms |
| S/N ratio | 112 dB |
| 19 inch rack | 1 U |
Key features
- 8 analogue inputs (microphone / line, selectable 48 V phantom) and 8 analogue outputs
- USB sound card input and output channel
- Echo Cancellation (AEC), Feedback Cancellation (AFC), Noise Suppression (ANS), Automatic Gain Control (AGC)
- 5 processing modules per input and 4 per output: expander, compressor, noise gate, priority, filters, delay, crossover, limiter
- Stereo link, auto mixing, matrix volume assignment and 16 scenes
- 8 GPIO and PTZ camera tracking control
- Ethernet, RS-232 and RS-485; UDP, RS-232 and RS-485 protocol
- Modular configuration software and custom user interface app for touch screens
Conference-grade processing
Echo cancellation for video conferences, feedback cancellation that allows flexible placement of microphones and loudspeakers, noise suppression of stationary noise and automatic gain control work together with auto mixing and priority control.
A different mix for every output
The assignment matrix routes any input to any output with its own volume, so each output can carry a different mix. Two channels can be linked as stereo, and up to 16 scenes can be stored, with auto-save of the last session.
Control for installer and user
The PC software manages several matrices as one system (up to 8 at a time). For users, custom control panels run on touch screens, tablets and smartphones, and up to 20 NMX-WP wall remotes can be assigned to each matrix. UDP, RS-232 and RS-485 integrate the matrix with other control systems and PTZ cameras.
In the box
- NMX-88 audio matrix
FONESTAR NMX-88: frequently asked questions
Can it be used for video conferences?
Yes. It has echo cancellation (AEC), feedback cancellation, noise suppression and AGC, and a USB sound card channel for video call software.
How is it configured?
With the FONESTAR modular PC software over Ethernet; end users control it from custom touch screen panels or NMX-WP wall remotes.
Can it control cameras?
Yes. RS-232 and RS-485 provide PTZ camera tracking control for debates in conference systems.
How many scenes can it store?
Up to 16 scenes, with auto-save of the last session.
Where can I buy the FONESTAR NMX-88 in India?
The FONESTAR NMX-88 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Video conference room
Ceiling or table microphones with echo cancellation for video calls.
Connections
| Connect | To |
|---|---|
| Microphones | MIC / LINE inputs |
| USB | Room computer |
| Line outputs | Room amplifier |
Setup
- Connect the microphones and set phantom where needed.
- Enable AEC, ANS and AGC on the microphone channels.
- Route the USB channel to the loudspeakers and the microphones to USB.
- Save the setting as a scene.
Tip: Use auto mixing so only active microphones are open.
Workflow 2: Debate hall with camera tracking
Council chambers and debates with PTZ cameras.
Connections
| Connect | To |
|---|---|
| Delegate microphones | Inputs |
| RS‑232 / RS‑485 | PTZ cameras |
| Outputs | PA amplifiers |
Setup
- Connect the microphones and cameras.
- Configure PTZ camera tracking in the software.
- Set AFC on the microphones.
- Test each position.
Tip: Feedback cancellation allows loudspeakers near the microphones.
Workflow 3: Restaurant zones
Background music and paging with a different mix per area.
Connections
| Connect | To |
|---|---|
| Music sources | Line inputs |
| Paging microphone | MIC input |
| Outputs | Zone amplifiers |
Setup
- Assign the sources to each zone output.
- Set priority for the paging microphone.
- Install NMX-WP panels in the zones.
- Store day and evening scenes.
Tip: Up to 20 NMX-WP panels per matrix.
Workflow 4: Hotel ballrooms
Divisible rooms with combined or separate audio.
Connections
| Connect | To |
|---|---|
| Room microphones | Inputs |
| Room loudspeakers | Outputs |
| Touch screen | TAB‑10‑16 on PoE |
Setup
- Create scenes for joined and divided rooms.
- Build a custom touch screen panel.
- Give staff only the needed controls.
- Recall scenes as the rooms change.
Tip: GPIO can trigger scenes from a wall switch.
Workflow 5: Shopping centre
Distributed music and announcements across many zones.
Connections
| Connect | To |
|---|---|
| Players and messages | Inputs |
| Outputs | Zone amplifiers |
| Control system | UDP or RS‑232 |
Setup
- Route sources to every zone.
- Add EQ, delay and limiters per output.
- Integrate with the building control system.
- Monitor from the PC software.
Tip: The software controls up to 8 matrices at once.
Workflow 6: Lecture hall
Lecturer microphones, computer audio and recording.
Connections
| Connect | To |
|---|---|
| Lecturer microphones | Inputs |
| Computer | USB sound card |
| Outputs | Hall amplifier |
Setup
- Connect the microphones and the computer.
- Set AGC on the microphones.
- Route the mix to USB for recording.
- Give the lecturer an NMX-WP for volume.
Tip: Latency under 3 ms keeps speech natural.
