PRESONUS Eris Series Owner's Manual page 25

High-definition mtmstudiomonitors
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this help to minimize hum, it will better protect your
equipment from power surges, brownouts, etc.
Use balanced cables whenever possible. If your
audio device does not offer a balanced output, you
can connect it to a direct box, which will provide
a ground-lift switch and a balanced output.
Hum. 通常情况下,嗡嗡声是由接地回路引起的。确认
所有的音频设备都连接到同一个电源上。如果你没有使
用电源调节器,我们强烈推荐,要添加一个。这不仅有
助于最大限度地减少嗡嗡声,而且可以更好地保护你的
设备免受电压浪涌、断电等影响。
尽可能地使用平衡电缆。如果你的音频设备不提供平衡
输出,你可以把它连接到一个直连箱,这将提供一个接
地开关和一个平衡输出。
Finally, make sure that your audio cables are not run near
powercables,andusecablesthataretheappropriatelength
for your application. Using cables that are too long not
onlyincreasestheriskofnoise,itincreasesthelikelihood
thatthecables arecoiled,whichwillessentially createan
antenna that picks up all kinds of audio interference.
最后,确保你的音频电缆不靠近电源线,并使用适合
你的应用长度的电缆。使用太长的电缆不仅会增加噪
音的风险,还会增加电缆盘绕的可能性,大体上会形
成一个天线,接收各种音频干扰。
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