SoundTube RS400i-BK 4 Inch Coaxial Open Ceiling Speaker Black

One 4.0 inch (102 mm) polypropylene woofer and one 1.0 inch (25 mm) convex titanium tweeter with FerroFluid cooling. Includes UL listed hanging hardware with adjustable galvanized steel cables and integrated SpeedClamp self-locking cable grip for fast, easy and secure installation. Also includes Euroblock connector and terminal weather boot. Patented ZeroReflection enclosure technology for optimal sound reproduction and cabinet rigidity. Easy access five-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position simplifies ordering and inventory tracking. Steel grille with protective powder-coated finish for lasting durability. Average sensitivity of 82.5 dB offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) approved.

Key Features

• 20W Max. Continuous Power RMS
• One 4.0 inch (102 mm) polypropylene woofer and one 1.0 inch (25 mm) convex titanium tweeter with FerroFluid cooling
• Includes UL listed hanging hardware with adjustable galvanized steel cables and integrated SpeedClamp self-locking cable grip for fast, easy and secure installation

Technical Specifications

Nominal Impedance
4 ohm
Impedance (min)
4.5 ohm
Sensitivity dB @ 2.83V/1M
85.5dB
Sensitivity dB @ 1W/1M (2)
82.5dB
Frequency Response (- 3 dB)
95 Hz - 20 kHz
Frequency Response (-10 dB)
76 Hz - 22 kHz
Max. Program Power
40W
Max. Continuous Power RMS
20W
Max. Power SPL @ 1 M
95.5dB
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz)
3.5 (Averaged 100 Hz - 10 kHz) 4.6 (2 kHz)
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz)
4.2dB (Averaged 100 Hz - 10 kHz) 6.6dB (2 kHz)
Tap Selector
5 Position rotary switch with transformer bypass
70.7 Volt Transformer Taps
20w / 95.5dB
100 Volt Transformer Taps (dB)
20w / 95.5dB
25 Volt Transformer Taps (dB)
2.5w / 86.5dB
Transformer Options
25 / 70.7 / 100 Volt with voice coil / 4 Ohm direct
Transducer - Low Frequency Driver
4" Polypropylene Cone with Butyl Rubber Surround
Transducer - High Frequency Driver
1 in / 25 mm Convex Aluminum w/ BroadBeam Waveguide
Network Type: Low Pass
12dB per octave, 2nd order
Network Type: High Pass
12dB per octave, 2nd order
Angle
125
Colors
Black or white
Port length
3.75 in
Inputs
4 Pin, 5.08 mm Euroblock for individual or daisy chain connection
Height (SM = Height)
223.5 mm / 8.79 in
Diameter (SM = Width)
195.6 mm / 7.70 in
Weight
2.3 kg / 5.07 lb
Shipping Weight
3.2 kg / 7.05 lb