SoundTube RF-41-20-SG Ceiling Speaker with Grille

The RF41-20 is a 4-inch, full range, blind-mount, in-ceiling speaker which delivers true high-efficiency and performance across the operating bandwidth. The full-range drive design deliveres maximun frequency response (71 HZ – 22 kHz, – 10 dB) in a compact design. 


Mounting hardware is included and features fast and easy retrofit connections. For easy ordering, stocking, and installation, the RF41-20 includes a five-position tap switch for 25-,70.7-,and 100-volt applications with a transformer bypass position.

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    Manufacturer’s Suggested Retail Price 
    Manufacturer’s CategoryRF Raw Frame Series
    Height2.71 in / 68.83 mm
    Shipping Weight2.15 lbs / 0.98 kg
    Carton Height2 in / 50.8 mm
    Carton Length13.5 in / 342.9 mm
    Carton Width13.5 in / 342.9 mm
    CertificationsCE, RoHS
    Enclosure PropertiesABS Glass Fiber Reinforced, Injection Molded
    Optional AccessoriesBlack Grille (GRL-RF41-BK)|White Grille (GRL-RF41-WH)
    Source InputsMetal Push Binding Posts
    Backcan Diameter8.26 in / 209.8 mm
    Backcan Height2.46 in / 62.5 mm
    Coverage Angle (-6dB @ 2kHz)53°
    Cutout Width/Diameter7.56 in / 192 mm
    Directivity Factor (Q) (Averaged 100Hz – 10kHz, @ 2kHz)4.9 and 4.6
    Directivity Index (DI) dB (Averaged 100Hz – 10kHz, @ 2kHz)5.7dB and 6.6dB
    Frequency Response (± 10 dB)71 Hz – 22 kHz
    Frequency Response (± 3 dB)155 Hz – 22 kHz
    Grille PropertiesSecured with Screws
    Low Frequency Voice Coil0.79 in / 20 mm
    Magnetically BoostedNo
    Max. Continuous Power RMS20W
    Max. Program Power40 W
    Minimum Impedance (Ω Ohms)6.6 Ω
    Nominal Impedance (Ω Ohms)8 Ω
    Sensitivity dB @ 1W/1M88.5 dB
    Sensitivity dB @ 2.83V/1M88.5 dB
    Tap SelectorRotary Switch
    Transformer Options25 / 70.7 / 100 V, 8 Ohm direct
    Transformer Taps (25V/70.0V/100V)2.5W/20W/20W
    Visible Diameter12.6 in / 320 mm
    Visible Height0.25 in / 6.4 mm