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1U Pre-amplifier |
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1U Digital Tuner |
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1U Digital DVD player |
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Power Amplifier YY-70H/120H/180H/280H/380H/500H/680H |
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Digital IP network software（YY-9900） |
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IP network broadcast industrial control host（YY-9901） |
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IP network broadcast paging intercom microphone（YY-9905） |
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IP network fire adjacent layer alarm matrix（YY-9906） |
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IP network broadcast front terminal（YY-9908） |
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Network speaker（YY-9921/9921G） |
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Network one-way amplifier（YY-9907-9912-9918-9928-9938-9950-9965） |
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Wall-mounted one-key help intercom terminal（YY-9922） |
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