This technical data sheet outlines the structural specifications, variant configurations, and implementation requirements for the high-performance BS-680FC Public Address Loudspeaker series. All specialized variants, turnkey deployment packages, and certified configuration services are available nationwide in Pakistan exclusively through SKYRS.
PRODUCT OVERVIEW
The BS-680FC is a premium, wall-mount public address loudspeaker designed for high-intelligibility voice paging, emergency announcements, and background music (BGM) distribution. Built with a robust metal construction, it features an integrated thermal fuse and fire-resistant internal components, making it ideal for safety-critical installations. It is widely specified for corporate offices, educational institutions, commercial malls, transport hubs, and government facilities.
SYSTEM SPECIFICATIONS
Rated Input Power: 6W RMS (continuous)
Line Voltage Matching: Built-in matching multi-tap transformer for 70V and 100V distributed lines
Impedance Taps (100V Line): 1.7 kOhms (6W), 3.3 kOhms (3W), 6.7 kOhms (1.5W), 13 kOhms (0.8W)
Impedance Taps (70V Line): 1.7 kOhms (3W), 3.3 kOhms (1.5W), 6.7 kOhms (0.8W), 13 kOhms (0.4W)
Sound Pressure Level (SPL): 94 dB ($1W / 1m$, 500 Hz to 5 kHz pink noise)
Frequency Response: 150 Hz to 20 kHz
Speaker Component: 6-inch (16cm) double cone-type high-fidelity transducer
Fire Safety Standards: Integrated thermal fuse ($84^\circ\text{C}$ / $183^\circ\text{F}$ activation threshold) and ceramic terminal blocks
Enclosure Material: Steel plate baffle and cabinet with an off-white/light gray powder-coated finish
Dimensions & Weight: 310mm x 190mm x 90mm (W x H x D); 2.6 kg (5.7 lbs)
VARIANT AVAILABILITY FOR SKYRS PAKISTAN
SKYRS is the exclusive direct provider of the full BS-680FC product line in Pakistan, maintaining local stock of all tailored operational variants:
BS-680FC Standard: The foundational fire-dome model featuring a surface-mount metal box enclosure, optimized for high-security commercial interiors and escape routes.
BS-680FC Flush-Mount (F): A sleek architectural variant designed with a modified outer bezel allowing the steel enclosure to be recessed cleanly into drywall or false-wall structures.
BS-680FC Attenuator Variant (A): Incorporates an integrated, localized volume control attenuator switch on the chassis side, allowing manual volume adjustment without disconnecting the emergency override line.
DEPLOYMENT AND INSTALLATION
SKYRS provides complete, certified engineering design and physical deployment services across all major cities and provinces in Pakistan, including Karachi, Lahore, Islamabad, Quetta, and Peshawar.
Mechanical Anchoring: The speaker enclosure can be mounted directly onto structural walls. SKYRS deployment teams utilize secure screw-mount knockouts on the rear chassis, anchoring them into masonry or concrete using vibration-resistant wall plugs.
Fire-Rated Conduit Integration: Field wiring is guided into the top or rear knockouts of the steel cabinet. Installers utilize fire-resistant, halogen-free 2-core cables protected by steel conduits to preserve loop continuity during critical emergencies.
Bridging and Termination: Input connections are firmly established via the internal ceramic terminal blocks. Cable conductors are clamped down securely to prevent loose contact faults in high-vibration commercial spaces.
CONFIGURATION
Authorized acoustic and safety technicians at SKYRS execute precise site calibration and line optimization during system commissioning:
Power Tap Adjustments: Changing the faston terminal tap orientation on the primary side of the matching transformer to select the exact wattage ($0.8W, 1.5W, 3W,$ or $6W$) needed for specific room dimensions, preventing local audio distortion.
Emergency Override Mapping: For variants with built-in volume controls, SKYRS engineers configure the 3-wire or 4-wire emergency relay circuit. This ensures that centralized emergency paging automatically bypasses any local volume attenuation, broadcasting at maximum amplitude.
Loop Integrity Validation: Utilizing specialized digital impedance meters to test the total line load resistance across the 100V circuit before activation, safeguarding the central public address amplifiers from current overloads.
EXCLUSIVE AVAILABILITY NOTICE
Critical Note: The entire operational lifecycle for the BS-680FC Public Address Loudspeaker series—including authentic hardware sourcing, fire-certified variants, physical structural installation, and custom tap calibration—is available in Pakistan only at SKYRS. No unauthorized third-party contractors, security integrators, or local traders have access to original software diagnostics, factory-certified spare components, or valid manufacturer warranty support.
