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The black RS400i 4″ Coaxial Open-Ceiling Speaker from SoundTube Entertainment is a two-way ported speaker with an open-ceiling enclosure design that delivers effective low-end response (from 76 Hz to 22 kHz @ -10 dB). The BroadBeam technology in this speaker incorporates a high-frequency waveguide mated to a 1" convex titanium tweeter. The BroadBeam high-frequency waveguide delivers a consistent dispersion pattern across the operating bandwidth that offers optimum edge-to-edge coverage and reduced power needs.
The RS400i Speaker incorporates a low-profile grille and a five-position tap switch with transformer bypass position. It features a SpeedClamp self-locking cable grip for fast, easy, and secure installation. Designed for indoor and outdoor background to foreground SPL applications, the RS400i Speaker includes a single-point mounting system for rapid open-ceiling installations. The broad dispersion pattern of 125° and high sensitivity of 82.5 dB 1W/1m makes this speaker suitable for retail, restaurants, grocery stores, hotels, casinos, fitness centers, conference rooms, big box stores, museums, trade shows, airports, and other open-ceiling applications.
BroadBeam waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage (up to 10 kHz, independently verified)
Features a 4" (102mm) polypropylene woofer and 1" (25mm) convex titanium tweeter with FerroFluid cooling
Weatherized components for indoor and outdoor applications
Includes UL-listed hanging hardware with adjustable galvanized steel cables and integrated SpeedClamp self-locking cable grip
Features an Euroblock connector and terminal weather boot
ZeroReflection enclosure technology for optimal sound reproduction and cabinet rigidity
Easy access five-position selectable tap switch for 25, 70.7, and 100V applications with transformer bypass position
Steel grille with protective powder-coated finish for durability
Can also be surface-mounted with the AC-RS-SM5 mount bracket (not included)
UL 1480 (UEAY) approved
Black paint finish
In the Box
SoundTube Entertainment RS400i 4" Coaxial Open-Ceiling Speaker (Black)
Terminal Weather Boot
Limited 5-Year Warranty
Table of Contents
4" (102 mm), coaxial, open-ceiling, ported 20 W transformer for 25/70.7/100 V or transformer bypass applications
Nominal: 4 Ω
Impedance listed per IEC 60268-5 with a minimum less than 80% the nominal impedance.
85.5 dB @ 2.83 V/1 m 82.5 dB @ 1 W/1 m
1 W/1 m sensitivity determined using nominal impedance.
95 Hz to 20 kHz @ -3 dB 76 Hz to 22 kHz @ -10 dB
Frequency response measured in half or full space as dictated by speaker mounting configuration.
Max. Program Power
Maximum program power is 3 dB above maximum continuous power.
Max. Continuous Power RMS
Continuous power rating, EIA-426-B test.
Max. Power SPL
95.5 dB @ 1 m
Maximum output based on maximum continuous power.
125° (-6 dB @ 2 kHz) 80° (-6 dB @ 10 kHz) 125° (Averaged 2 to 10 kHz)
3.5 (Averaged 100 Hz to 10 kHz); 4.6 (2 kHz)
4.2 (Averaged 100 Hz to 10 kHz); 6.6 dB (2 kHz)
Five-position rotary switch with transformer bypass
Output at 70.7 V: 95.5 dB @ 20 W 92.5 dB @ 10 W 89.5 dB @ 5 W 86.5 dB @ 2.5 W
Output at 100 V: 95.5 dB @ 20 W 92.5 dB @ 10 W 89.5 dB @ 5 W
Output at 25 V: 86.5 dB @ 2.5 W 83.5 dB @ 1 W 80.5 dB @ 0.63 W 77.5 dB @ 0.31 W