Clear-Com PS-704 Four-Channel Analog Partyline Intercom Power Supply
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Key Features
Key features:
• Four-channel analog partyline intercom power supply in 1RU chassis
• Delivers up to 2A total power at 30V DC
• Supports up to 40 beltpacks or 10 speaker stations
• Individual channel overload and short-circuit protection
• Automatic reset circuitry restores power after fault removal
• Program audio input with per-channel assignment and level control
• Parallel operation supported for redundancy or system expansion
• Universal 100–240V AC internal power supply
Features & Specifications
Product Overview +
The Clear-Com PS-704 is a professional four-channel intercom power supply designed for Encore analog partyline systems used in broadcast studios, live events, theatres, and mobile production environments. Built in a compact 1RU rackmount chassis, it provides stable and dependable DC power while maintaining Clear-Com’s renowned audio performance.
Independent channel protection and continuity
Each intercom channel features its own electronic overload and short-circuit protection. If a fault occurs on one channel, only that channel is shut down while the remaining channels continue operating normally. Once the fault is cleared, the automatic reset circuitry restores power without the need to disconnect remote stations, ensuring uninterrupted communication.
Scalable and redundant system design
The PS-704 can be connected in parallel with additional power supplies or main stations to increase system capacity or provide backup redundancy. This makes it ideal for larger installations or mission-critical production environments where reliability is essential.
Program audio distribution and control
A line-level program input allows external audio feeds to be distributed to any or all intercom channels. Front-panel switches and level controls give operators precise control over program audio routing and levels, supporting monitoring and coordination needs during live productions.
Rugged construction for portable use
Constructed with a heavy-gauge aluminum chassis and an extra-thick front panel, the PS-704 is built to withstand the demands of portable and touring applications while remaining equally suited to fixed installations.
Technical Specifications +
technical specifications

