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Knowledge Base > Discontinued Products > 304 Headphone Amplifier

How do I hook up multiple 304s if I need more than 4 headphone channels?

Simply use the “thru” jacks to feed to the additional 304(s). This connecter is also convenient to patch headphones into an existing audio chain, for example: the signal going to a power amplifier could be routed to the input of the 304, the 304’s “thru” output signal would go to the amplifier, thus the audio feeds both the amplifier and the headphones.

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