Viking Electronics PA-250-IP 250W 70V SIP/Multicast Paging Amplifier

The Viking Electronics PA-250-IP is a 250-watt, 70V SIP/Multicast paging amplifier built for commercial facilities that need loud, reliable IP-driven overhead paging without the complexity of a separate paging controller. Running on standard 100–240V AC — no PoE switch port required — the PA-250-IP fits into a 1U rack slot and integrates directly with SIP-based VoIP phone systems or any multicast-capable UC platform. If you're specifying Viking Electronics paging equipment for a new installation or replacing an analog paging head-end, this amplifier is the logical anchor for the audio distribution layer.

Key Features

250 Watts into 70V, 150 Watts into 25V: The 70V output supports up to 250 individual ceiling or wall speakers on a single home-run — enough to cover a large warehouse, school campus wing, or multi-floor office without adding a second amplifier. Drop to 25V and the safe limit steps down to 150 speakers, still more than sufficient for mid-size deployments.

SIP 2.0 (RFC 3261) endpoint integration: The PA-250-IP registers as a standard SIP endpoint on your call manager (Cisco CUCM, Avaya, FreePBX, 3CX, or any RFC 3261-compliant platform). Pages initiated from any SIP phone or auto-dialer ring through as a regular SIP call — no proprietary gateway hardware required. This makes integration into an existing IP phone system straightforward.

Multicast paging (G.711u / G.722): For simultaneous all-call or zone paging without consuming SIP registrations, the PA-250-IP supports IP multicast. Assign a multicast address and port, and any compliant endpoint or paging controller can trigger a zone blast to all subscribed amplifiers at once. This is the right architecture for large campuses running parallel paging zones.

G.722 wideband audio (50–18,000 Hz ±10 dB): Unlike G.711-only amplifiers limited to 300–3,400 Hz telephone-band audio, G.722 opens the frequency response to 18 kHz — speech intelligibility and music on hold both improve noticeably through ceiling speakers. Facilities using overhead paging for both safety announcements and background audio will hear the difference.

Universal AC input (100–240V, 50–60 Hz): The wide-range power supply means the same unit ships internationally and covers both 120V North American and 230V European rack environments. No step-down transformer needed. Each IEC C8 AC connection point is a cage-clamp terminal, so wiring to a rack PDU is direct and secure.

1U rack chassis (19