Compact Digital 4 Channels 300W Class D Power Amplifier for Conference System/ Stage/ Live Performance

Product Description

Compact Digital 4 Channels 300W Class D Power Amplifier for Conference System/ Stage/ Live Performance

Description:

Available in 2-channel and 4-channel models, this series of 1U Rack-Mount Digital Audio Power Amplifier features advanced full-bridge switching power supply and Class-D amplification technology, delivering high efficiency, low distortion, and stable performance. Ideal for professional audio, conference systems, and live venues.

Feature:

Full-Bridge Power Supply: With imported magnetic transformer for strong anti-saturation capability, high efficiency, stable performance, and reduced weight.

Efficient Heat Dissipation: Optimized airflow design with aluminum heat sinks and variable speed fans ensures reliable low-temperature operation.

Comprehensive Protection: DC, overload, short circuit, and thermal protection, with built-in fuse and soft-start function to prevent current impact.

High Audio Quality: Low distortion, wide frequency response, and low noise. Clear highs, smooth mids, and powerful lows, with clip limiter to protect speakers.

 

Model		D-4300
Channel Number		4 Channels
Input		CH1-4: 20kΩ (Balanced) /10kΩ (Unbalanced)
Output	8Ω	4X300W
	4Ω	4X500W
	BRIDGE 8Ω	2X900W
Power Consumption		3000W
Frequency Response		20HZ-20KHZ +1/-1dB
Total Harmonic Distortion		<0.1% @8Ω 1KHZ
Sensitivity		0.775V/1.4V
S/N Rate		100dB
LED Indicator		Protect (Red) / Clip (Yellow) / Signal (Green)
Operating Temperature/ Humidity (at non-condensing)		0ºC~+40ºC, (90% RH, non-condensing)
Finish		Panel: Aluminium plate, silver and black; Case: steel plate, black
Channel Isolation		60dB (8Ω/1KHZ)
Damping Factor		350: 1/8Ω
Slew Rate		28V/us
Cooling		Air flows from the left to the right
Dimensions (WxDxH)		482x330x44mm
Net Weight		5.3KG

FAQ
1. How long is the lead time?
Generally 4 weeks. If any urgent orders for projects, we will do our best to expedite the process and deliver faster, But for OEM orders, lead time would be little longer on the first order since we need more time to communicate the requirements and confirm artworks....

2. What's your payment term?
Our policy is at least 30% deposit before production, and 70% paid before shipment date. Certainly, L/C is also acceptable.

3. How do you pack my goods to ensure intactness in the course of transportation?
We always take care of our products and pack them properly. For example, we use strong cardbox (export carton) stuffing with enough foam/ bubble and inner boxes for air shipment or express, and optional pallet packing could be used for LCL sea shipment for better protection.

4. What's your delivery term?
We quote and deliver on the term of FOB Huangpu (except EXW term for small orders. Of course, CIF, C&F or even door to door is acceptable, so we will check and quote the shipping cost additionally.

5. How about the warranty and after-sales service?
Our warranty is 2 years, but considering the long transit time to oversea customers, we offer two and half year warranty from the production date on serial numbers on. For any failure (no-human included), we shall provide you free spare parts and instruction for repair.

6. What's your advantage over competitors?
A very good questions: Our advantage is more than 10 years expertise and experience in the commercial audio industry, we are good at listening to my customers, getting to know their need and proposing right solution with reliable products. With support from specialized R&D and proficient production teams, we succeed in offering innovative and sophisticated audio equipment of cutting-edge technology, and always keep in mind that to make our customers win and profitable is the core in business cooperation.