4″ Full-Range Open-Ceiling Speaker

One 4 inch (102 mm) full-range, treated fiber driver mounted to an ABS baffle. Includes hanging hardware with galvanized steel cables and integrated SpeedClamp™ self-locking wire 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 90.0 dB offers high-output capabilities and reduced amplification costs. UL 2239 (hanging cable) listed.

Specifications: RS4-EZMounting hardware included
Nominal Impedance8 ohm
Impedance (min)6.9 ohm
Sensitivity dB @ 2.83V/1M90.0dB
Sensitivity dB @ 1W/1M (2)90.0dB
Frequency Response (± 3 dB)185 Hz - 13 kHz
Frequency Response (±10 dB)98 Hz – 22 kHz
Max. Program Power40W
Max. Continuous Power RMS20W
Max. Power SPL @ 1 M103.0dB
Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz)4.3 (Average 100 Hz - 10 kHz) 3.8 (2 kHz)
Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz)4.9dB (Average 100 Hz - 10 kHz) 5.8dB (2 kHz)
Tap Selector5 Position rotary switch with transformer bypass
70.7 Volt Transformer Taps20w / 103.0dB
100 Volt Transformer Taps (dB)20w / 103.0dB
25 Volt Transformer Taps (dB)2.5w / 94.0dB
Transformer Options25 / 70.7 / 100 Volt option with a 8 Ohm direct
Transducer - Full-Range Driver4" Extended-Range Paper Cone
Coverage Angle (-6 dB @ 2 kHz)160
ColorsBlack or white
Inputs4 Pin, 5.08 mm Euroblock for individual or daisy chain connection
Height (SM = Height)223.5 mm / 8.8 in
Diameter (SM = Width)195.6 mm / 7.7 in
Weight1.8 kg / 4.0 lb
Shipping Weight2.7 kg / 6.0 lb
Accessories IncludedHanging Hardware: Main and Safety Cables w/ SpeedClamp™
Packaging1 per box
Regulatory - ULnot planned
Regulatory - CEApproved
Regulatory - IPnot planned