Overview
About the GTM
The GTM SDI consolidates every communication and interfacing function required for eSports tournament operation into a single, network-powered device — while adding native HD-SDI integration for venues where SDI video infrastructure is already in place.
Like the standard GTM, it provides the individual player interface, generates the internal team intercom mix, and gives tournament engineers full remote control via the GlenController Windows app. Separate operating modes allow the same unit to serve Coaches, Referees, and Arena Announcers as required.
The HD-SDI connection is de-embedded to deliver up to four pairs of stereo audio sources, mixable to two-channel stereo within GlenController. The SDI signal is looped out inline, meaning the GTM SDI can be inserted directly into the video signal path without breaking the chain — a key advantage in SDI-native tournament facilities.
The top panel carries three large level controls — GAME, TEAM, and ME — each ringed by a multicolour LED indicator showing the current position at a glance. Every control doubles as a push button for future firmware expansion.
features
What the GTM SDI Delivers
Top Panel Controls
- GAME — Stereo game audio level with LED ring indicator
- TEAM — Overall team comms channel level
- ME — Sidetone level of user's own voice in headphones
- Each control is also a push button for future functionality
Game Audio Sources (Rear Panel)
- S/PDIF — Stereo digital optical TOSLink input
- Aux In — Analogue stereo on 3.5mm jack socket
- USB — Stereo USB audio via USB-C connection
- Dante — Two single-channel sources from network
- HD-SDI (option) — De-embedded stereo from 4 pairs; SDI signal looped through inline so the GTM SDI can sit in-line of the video feed
HD-SDI Integration
- HD-SDI connection de-embedded to provide 4 stereo pairs for game audio source selection
- Each stereo pair has an individual balance control, mixable to 2-channel stereo via GlenController
- SDI signal looped out inline — GTM SDI can be used within the active SDI video signal path
- Source selection lockable from the rear panel to prevent local player access
Front Panel Connections
- 3.5mm TRRS — Headset input for standard gaming headsets; 2.5V or 5V bias selectable
- XLR Mic Input — Professional dynamic microphone; selectable 48V phantom power; 3-level compressor
- 6.35mm + 3.5mm outputs — Two independent headphone amplifiers in parallel
Team Intercom & Remote Control
- Internal Dante/AES67 mixer generates team group mix for up to 7 teams
- Full remote control and monitoring via Windows 11 GlenController app
- Individual game audio source selection lockable via rear panel
- Mic gain adjustable from rear panel; lockable to prevent player access
- Redundant dual network connections for failover support
Background Audio Guard
- Up to 40dB background noise reduction
- Separate gating across 34 frequency bands
- Prevents arena noise from entering the mic and team talk mix
- Eliminates competitive advantage from overheard audio
Specifications
Technical Specifications
Audio
Mic Input Gain Range
60 dBu
Phantom Power
48V
Equivalent Input Noise
–124 dBu (residual @ max gain, 150Ω)
Headphone Impedance
16 to 1000Ω (auto output level to match impedance)
Max Headphone Output
+14.5 dB into 600Ω
Headphone Connectors
6.35mm TRS + 3.5mm TRS (main); 3.5mm TRRS (headset)
Band Pass Filter
20Hz – 22kHz
Additional Game Sources
Stereo Aux, USB, Optical (TOSLink), Dante, 3G-SDI (option)
Network
Protocol
Dante with Broadway IC — Primary & Secondary
AES67
Compliant
SMPTE ST-2110-30
Compliant (via Dante Domain Manager)
Copper Ethernet
2 × Neutrik EtherCON connectors
Fibre Ethernet
Not available
Audio Sampling
48kHz
Transfer Rate
1000 Mbps
Resolution
24-bit
Power
PoE
IEEE 802.3af — Classification Class 0
Source
PoE network switch or midspan PoE injector
Physical
Dimensions (W×D×H)
135 × 162.5 × 76 mm
Weight
0.4 kg
Construction
All-aluminium, anodized and laser-etched, powder-coated sides
Environmental
Operating Temperature
0 to +50°C (32 to 122°F)
Storage Temperature
–20 to +70°C (–4 to 158°F)
Relative Humidity
0 to 95%, non-condensing
Included Items
Handbook
Available by download
Network Cable
2m Cat5 RJ45 plug / RJ45 plug cable
Product Family
Related products
GTM
The standard single-user eSports interface — game audio, team intercom, referee control, and Background Audio Guard over a single PoE cable, without the SDI option..
GTM Mobile
GTM variant with USB-C mobile interface for phone-based gaming tournaments.
GTM SI
Stripped-down GTM with no top panel controls — for integrators requiring full remote-only operation.