尼日利亚采购需求：四声道功放，专业音频功放，专业音响放大器，专业功放品牌，专业音频放大器，专业功率放大器

I'm interested in getting the price for a specific power amplifier model. I'm looking for a 4-channel unit that can meet my project's demands. Could you also provide details on the specifications and whether there are any bulk purchase options or discounts available? Additionally, it would be great to know the lead times for delivery and your payment terms. This info is crucial for me to make a timely decision, as I'm keen to move forward with the right choice. Looking forward to your prompt response.