Description
650W Power for Large 100V Music & Paging Systems
The TEXONIC EX650D is a 650W Class-D commercial mixer amplifier designed for larger distributed audio systems where one amplifier needs to operate a substantial speaker load.
It combines 100V speaker amplification, Bluetooth and USB music playback, three microphone inputs, paging priority, chime and external audio connections in a compact 1U rack-mount chassis.
Where the EX650D Fits Best
Choose the EX650D when a commercial project requires high amplifier capacity but all speakers can share the same main music and paging program.
Large retail stores & showrooms
Schools & public buildings
Hotels & banquet facilities
Gyms & recreation centres
Factories & production spaces
Large commercial paging systems
Plan Your 100V Speaker Load
For a 100V system, add together the selected wattage tap of every connected speaker. The EX650D provides 650W rated output. For typical commercial system planning, approximately 20% unused amplifier capacity provides useful operating reserve.
| Example | Speaker Tap | Total Load | Approx. Reserve |
|---|---|---|---|
| 20 speakers | 15W each | 300W | 350W |
| 30 speakers | 10W each | 300W | 350W |
| 40 speakers | 10W each | 400W | 250W |
| 50 speakers | 10W each | 500W | 150W |
These examples demonstrate amplifier loading only. Actual speaker quantity and tap settings should be selected for the speaker model, room coverage, ambient noise and required sound level.
Music, Paging & Priority Control in One Amplifier
Paging Priority
Priority control helps important voice announcements take precedence over normal background audio without requiring staff to manually reduce the music level first.
The built-in chime can be used before routine announcements. The amplifier's alarm-tone function is for general facility notification and does not make the EX650D a certified fire-alarm or emergency voice-evacuation system.
Speaker Connection Options
Technical Specifications
| Brand | TEXONIC |
| Model / SKU | EX650D |
| Amplifier Type | Class-D commercial mixer amplifier |
| Rated Output | 650W |
| Speaker Outputs | 100V or 8–16Ω |
| 100V Output Load | 15Ω |
| Recommended 100V Tap Load | Approx. 520W with 20% reserve |
| Microphone Inputs | 3 — MIC 1 & MIC 2 unbalanced, MIC 3 balanced |
| AUX Inputs | 2 |
| Music Playback | Bluetooth + USB with auto-start |
| Line Output | 0.775V |
| Priority Order | Alarm → MIC 1 → MIC 2 / MIC 3 / AUX |
| Frequency Response | 60Hz–20kHz ±3dB |
| Total Harmonic Distortion | <0.5% at 1kHz, 1/3 rated power |
| Signal-to-Noise Ratio | >80dB line / >65dB microphone |
| Tone Controls | Bass 100Hz ±10dB / Treble 10kHz ±10dB |
| Protection | Short circuit, overload & high temperature |
| Rack Mounting | 1U standard 19-inch rack |
| Power Supply | AC 100–240V, 50–60Hz |
| Power Consumption | 990W |
| Dimensions | 480 × 280 × 45mm / 18.9″ × 11.02″ × 1.77″ |
| Net Weight | 3.8kg / 8.4 lb |
Rack Installation
The EX650D occupies one standard rack space. Because this is a high-output amplifier, keep ventilation openings clear and provide suitable airflow around the unit when installed in an equipment rack.
