Mic/Line 线路衰减器调整

麦克风/线路衰减器(6)为接入初级输入(5)的麦克风提供所需的升高增益。用一根拉直的回形针或小改锥探 入后面板上内藏隐式摁钮的洞口来设定。如用线路电平信号,将Mic/Line Pad(麦克风/线路衰减器)的白色 按钮摁",或离面板最远,要用麦克风电平信号,则将其摁",或离面板最近。运输时摁钮的设定 是在线路电平位置。它隐藏在面板后面是为了防止在运输或架设时无意之中加大了增益。

因为这个开关提供30分贝的额外增益,用线路电平时千万不可留它在摁出"的位置!这将引起PR 15D输 入阶段的削波并导致不必要的失真。

故障诊断

完全无输出

首先确定设备的AC电源是打开的。确认Power/Clip LED (4)(功率/削波LED指示灯)是绿灯。如果不是,检查 ON/OFF(开启/关闭)开关(3)是在ON(开启)位置,并检查IEC电源线连接(2),肯定其充分连接好。确定AC电源线 插在有效的电源插座上。最后,检查熔断器(1)(安全说明请参见后面板:熔断器部分")

一旦确定您的设备有AC电源,检查PR 15D是否收到信号,暂时拔下输入缆线,将其接到其它能再生此信号的 设备上(即一台功放和扬声器),如果信号产生,再检查所有的音量控制是否调高至满意的程度(三分之一至中 点半途)

如果PR 15D受到阳光直射或温度过高,其内置过热保护可能已被触发,在这种情况下,power/clip LED(功率/ 削波LED指示灯)会亮起红灯,要是这样的话,关掉PR 15D,给予足够时间冷却。

如果还是没有输出,联系您的授权Peavey 经销商或Peavey 国际服务中心。

哼声或嗡声

如果PR®15D产生哼声或嗡声,这可能和AC电源有关。试试将PR 15D插入一个不同的AC电源插座。有时候, 混音器和PR 15D使用不同的断路开关时,会产生哼声问题。

确保使用屏蔽缆线连接PR 15D的信号输入。如果使用带1/4"插头的扬声器缆线而不是屏蔽线作为输入缆 线,就容易产生哼声或嗡声。

哼声有可能和接地回路相关。使用断地开关(4)断开PR 15D端平衡缆线上的屏蔽地线会有帮助。仔细检查任 何输入变动,先将音量控制调低,然后插入和拔出缆线,或断开扬声器端的屏蔽接地。

检查没有灯光调节器和PR 15D,混音器或任何源设备接在同一条电路上。如果有灯光调节器,那么有必要 将其全开或全关来降低哼声。这是典型的AC线路/灯光调节器干扰问题,不是PR 15D有设计缺失。千万不要 拆掉或折断AC电源插头上的第三根导线(接地脚)

失真或模糊音

首先确定混音器(信号源)没有削波或过载。确定PR 15D的音量控制(7)(9)没有设定过低。

检查输入插头在PR 15D后面板的输入插座(5)(8)上充分插好。确定MIC/LINE PAD(麦克风/线路衰减器)(6) 正确地设定在线路电平信号上,也没有功放插入PR 15D的输入插座。

如果使用了延长线向设备提供AC电源,确定有足够的电流量,并且没有被用来向其它设备供电。

PR 15D 有一个内置均衡器用于延展和平缓系统扬声器的自然响应。低音提升及高频均衡使系统有一个标称 平坦的响应,即使需要也只要很少的额外均衡。如果PR 15D收到外部过多的额外低音提升或高频提升,可 能导致在高声压级过早产生过载。减少外接(混音器、机柜)均衡器,看看是否消除失真。

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Peavey PR 15 D manual Mic/Line 线路衰减器调整, 故障诊断 完全无输出

PR 15 D specifications

The Peavey PR 15 D is a powerful and versatile active loudspeaker designed for professional audio applications. It is particularly suited for live performances, mobile DJ setups, and installations due to its robust design and advanced technology. One of the standout features of the PR 15 D is its high-output performance, which delivers exceptional sound reproduction in a variety of settings.

At the heart of the PR 15 D is a 15-inch low-frequency driver that provides deep, punchy bass tones, while the 1.4-inch titanium diaphragm compression driver ensures clear and detailed high frequencies. This combination results in a well-balanced sound profile that can fill large venues with ease. The loudspeaker is rated for a maximum output of 1,000 watts peak power, making it capable of handling both music and vocal applications without distortion.

The PR 15 D also incorporates Peavey's exclusive Smart Filter technology, which optimizes the frequency response and enhances overall sound quality. This technology ensures that the speaker performs optimally across all frequencies, delivering a clear and accurate sound signature. Additionally, the built-in digital signal processing (DSP) includes sophisticated algorithms that manage crossover, EQ, and limiter functions, further enhancing performance and protecting the speaker from damage during high-output situations.

Durability is a key characteristic of the PR 15 D. The speaker is housed in a lightweight, yet rugged polypropylene enclosure, making it easy to transport while able to withstand the rigors of road use. The angular design allows for versatile placement options, whether on the ground, a speaker stand, or as a monitor. Integrated handles facilitate easy carrying and positioning, adding to its practicality for mobile use.

Connectivity options are plentiful, featuring both XLR and TRS inputs, which allow users to connect microphones, instruments, or mixers with ease. The XLR output allows for linking multiple speakers, ensuring an expansive audio setup.

Overall, the Peavey PR 15 D stands out for its powerful performance, advanced technologies, and durable design, making it an excellent choice for anyone seeking a reliable and high-quality loudspeaker for various sound reinforcement applications. Whether for live music, presentations, or DJ events, the PR 15 D delivers exceptional sound quality and versatility, ensuring that every performance is memorable.