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SD505-6SB 6-Inch Addressable Sounder Base – Detector Base with Built-In Sounder for Silent Knight Fire Alarm Systems

$305.00

Specifications

The SD505-6SB is a 6″ Silent Knight sounder base with programmable single- or multi-station output, designed to deliver direct occupant alerting from the detector location.

  • Model: SD505-6SB 6″ Sounder Base
  • Brand: Silent Knight
  • Type: Addressable sounder base for SD505 detectors
  • Sounding Modes: Single-station and multi-station (programmable)
  • Trigger: Detector alarm state
  • Diameter: 6 inches
  • Detector Compatibility: Silent Knight SD Series heads
  • Panel Compatibility: Silent Knight addressable FACPs
  • Address Storage: Stored in the base
  • Mounting: Standard ceiling-mount electrical box
  • Material: Flame-retardant thermoplastic
  • Application: Sleeping rooms, offices, patient wings, hospitality

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SD505-6SB 6-Inch Addressable Sounder Base – Detector Base with Built-In Sounder for Silent Knight Fire Alarm Systems
SD505-6SB 6-Inch Addressable Sounder Base – Detector Base with Built-In Sounder for Silent Knight Fire Alarm Systems
$305.00

SD505-6SB 6″ Sounder Base

The SD505-6SB 6″ Sounder Base is a Silent Knight addressable base with a built-in audible output that activates when its hosted detector goes into alarm. It can be programmed for single-station sounding where only the triggered base sounds or multi-station sounding, where a group of SD505-6SBs fire together, making it a flexible tool for creating zone-specific occupant notification patterns. Compared with dropping horn-strobes throughout every room, base-mounted sounders simplify ceiling aesthetics and reduce device counts in low-ambient-noise environments such as healthcare wings, hotel rooms, and offices after hours.

Features

  • Built-in sounder integrated into a 6″ detector base
  • Programmable single-station or multi-station sounding modes
  • Activates on the connected SD505 detector’s alarm condition
  • Reduces the need for separate in-room notification appliances
  • Plug-in design for clean detector head service
  • Uniform 6″ footprint matches the rest of the SD505 base family
  • Silent Knight addressable compatibility for zone-specific control

Benefits

The SD505-6SB is particularly effective in environments where ambient noise is low and occupants may be in small, enclosed rooms places where a corridor horn-strobe simply doesn’t cut through a closed door fast enough. Multi-station programming is the feature that really sets it apart: one alarm event can fire a cluster of bases in a patient wing or hotel zone simultaneously, producing localized but coordinated annunciation. Installers also appreciate that the sounder and detector live in one footprint, which keeps ceilings clean and cuts total device counts per room. For facility managers, the result is faster occupant response times with less overhead hardware to maintain.

Why Choose QuickShipFire?

  • Reliable sourcing of sounder bases for hospitality and healthcare rollouts
  • Programming-mode advice on when single-station beats multi-station (and vice versa)
  • Coordinated shipment of SD505-6SB bases with matching detector heads
  • Per-floor kitting for large-property builders replacing horn-strobes with base sounders
  • Responsive support for AHJ-driven changes that require sounding pattern revisions
When should I choose single-station over multi-station sounding?
Single-station is ideal when you want only the alarmed detector's room to sound (privacy-sensitive environments); multi-station fits zoned wings where grouped annunciation is required.
Is the SD505-6SB loud enough to replace a horn-strobe in every situation?
No, it's designed for point-of-origin and zone-cluster alerting. Large open areas and corridors still typically need dedicated horn-strobe coverage.
Can multi-station groups span multiple floors?
Programming multi-station groups across floors is possible but should follow zoning logic defined in the fire alarm design — consult Silent Knight documentation and the AHJ.
Does the sounder draw from the SLC or a separate NAC?
Power sourcing depends on the specific Silent Knight panel configuration; most deployments account for SD505-6SB current draw within the addressable loop budget.
Will the sounder fire on detector trouble, or only on alarm?
The SD505-6SB is programmed to activate on alarm conditions; trouble conditions are reported to the panel but don't normally trigger audible output from the base.
Can I mix SD505-6SB and SD505-6RB bases on the same loop?
Yes, sounder, relay, and isolator bases can coexist on the same addressable loop when properly addressed and loaded within panel capacity.
What makes this better than adding a small horn in each sleeping room?
The SD505-6SB consolidates detection and notification into one device and one ceiling cutout, cutting install labor and visual clutter while retaining programmable sounding control.
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