Features
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650W RMS Power Output
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MP3 / FM Tuner / Bluetooth Module with LCD display
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Supports USB, TF Card (MP3, WMA, APE, FLAC, WAV, AAC)
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Bluetooth streaming with song name display
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Remote control support for MP3/Tuner/Bluetooth
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4 x Balanced MIC Inputs (Phoenix Terminal)
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Built-in 48V Phantom Power (MIC1–4)
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2 x AUX Inputs (RCA)
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1 x EMC Emergency Input (Highest Priority)
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Channel Priority: EMC > MIC1 > MIC2/MIC3 > AUX1/AUX2
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Bass & Treble Tone Control (±10dB)
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Constant Voltage (100V) & Constant Resistance (4–16Ω) Output
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Class D Amplifier with Energy-Efficient Switching Power Supply
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Intelligent Cooling Fan (Variable Speed)
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Overheat, Overload & Short-Circuit Protection
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Optional 24V Backup Power Supply (Seamless Switching)
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Standard 1U Rack Mount Design
Applications
The T-B650DTB is perfect for:
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Retail stores & supermarkets
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Coffee shops & restaurants
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Small shopping centres
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Corporate offices
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Educational institutions
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Background music systems
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Paging & announcement systems
Audio Performance
| Specification | Details |
|---|---|
| Model | T-B650DTB |
| Rated Output Power | 650W |
| Output Mode | 100V / 4–16Ω |
| Frequency Response | 80Hz – 16KHz (+1dB, -3dB) |
| SNR | MIC1–3: 66dB / AUX1–2: 80dB |
| THD | < 0.5% (1KHz, 1/3 Rated Power) |
| Channel Crosstalk | ≥ 50dB |
| Tone Control | Bass ±10dB (100Hz), Treble ±10dB (10KHz) |
Input Specifications
Microphone Inputs (MIC1–4)
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5mV / 600Ω Balanced (European Phoenix Terminal)
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Independent Volume Control
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Line / Mic / Phantom Switch per Channel
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48V Phantom Power Support
AUX Inputs (AUX1–2)
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350mV / 10KΩ Unbalanced RCA
EMC Input
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775mV / 10KΩ Unbalanced (Highest Priority)
Line Output (MIX OUT)
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1000mV / 470Ω Unbalanced RCA
Intelligent Priority & Control
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EMC emergency input overrides all channels
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MIC1 overrides MIC2–4 and AUX
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Independent volume control for each channel
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Master volume with tone control
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Level, overload, and protection indicators
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External MUTE control
Protection & Cooling
The amplifier is built for continuous commercial operation and includes:
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Overheat protection
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Overload protection
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Short-circuit protection
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Forced air cooling with an automatic variable-speed fan
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Stable Class D amplifier design
Power & Physical Specifications
| Specification | Details |
|---|---|
| Power Supply | AC 220–240V / 50Hz |
| Power Consumption | 850W |
| Dimensions | 484 × 300 × 44 mm |
| Weight | 4.3 kg |
| Installation | 1U Rack Mount |
Rear Panel Connectivity
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100V / 4–16Ω Speaker Output Terminal
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Speaker Output Mode Selector
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AC Power Input Socket
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Cooling Fan
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Line Output Interface
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2 x AUX Inputs
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4 x Balanced MIC Inputs (Phoenix Terminal)
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MIC Line/Mic/Phantom Switch per Channel
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EMC Input Port
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External Mute Control
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FM Antenna Port
