Shenzhen Tendzone Intelligent Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of 4ch digital power amplifier in China. Please feel free to wholesale high quality 4ch digital power amplifier made in China here from our factory. We also accept customized orders.

Overview
The Tendzone AMD4350 amplifier is a 4-channel fixed impedance digital amplifier, using advanced Class D technology, designed for users who pursue excellent sound quality and convenience. The conversion efficiency of this amplifier exceeds 90%, ensuring stable output even under high load conditions, providing strong support for your audio equipment.
The rear panel features versatile output options, allowing for dual-channel, single-channel, and bridged configurations to accommodate various application requirements. It includes balanced input interfaces and SPEAKON outputs, ensuring stable and dependable connections.
Features
- The amplifier features a compact 1U design, making it lightweight and easy to carry and install.
- Utilizing Class D technology, it achieves a conversion efficiency exceeding 90%.
- For optimal protection, the amplifier incorporates automatic limiting output along with safeguards against short circuits, overloads, over-temperature, and a power-on delay.
- It is also equipped with a delayed start system that helps prevent speaker damage from sudden impacts.
- The rear panel offers flexible output options, including dual-channel, single-channel, and bridge conversions.
- Connections are facilitated through a balanced input interface and SPEAKON output.
- Additionally, the amplifier's switching power supply features a dedicated cooling system, and its cooling fan operates via an advanced stepless speed-changing circuit.
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SPECIFICATIONS
|
General Performance |
|
|
Number of channels |
4 |
|
Stereo mode @8Ω, each channel |
350W |
|
Stereo mode @4Ω, each channel |
550W |
|
Frequency Response |
1100W |
|
Signal-to-Noise Ratio/S/N |
20 Hz -20 kHz (±3 dB ) |
|
Total Harmonic Distortion |
≥80dB |
|
Input sensitivity |
≤0.05% (8Ω, 350W) |
|
Input Impedance |
+4dB * (1.23V) |
|
Dimensions (W x H x D) |
10kΩ(electronically balanced) |
|
net weight |
483×45×355 (mm) |
|
Input (CH1-2) |
5.5kg |
|
Output (CH1-2) |
XLR Input Connectors |















