SoundTube RS400I
4" Coaxial Pendant Speaker, Black or White


The RS400 is a 4" coaxial, ported speaker with an open-ceiling enclosure design.
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The RS400 is a 4" coaxial, ported speaker with an open-ceiling enclosure design. Hanging hardware is included and features a SpeedClamp™ self-locking wire grip for fast, easy and secure installation. SoundTube’s custom-engineered driver and electro-acoustic network delivers high-performance sound in a cost-effective speaker design. The RS400i speaker incorporates a low-profile grille and a 5-position tap switch with voice coil/4 Ohm direct.

Designed for indoor and outdoor background to mid-level SPL applications, the RS400i includes a single-point mounting system for rapid open-ceiling installations. Cost-effective engineering with high-performance sound makes the RS400i speaker ideal for music and paging applications in retail, grocery stores, restaurants, hotels, casinos, museums, trade shows and conference rooms.


  • Included with every new RS400i speaker is a fast-action, four-pin Euroblock connector that speeds up wiring, allows simplified daisy-chaining and provides the option for pre-wiring where 'division of labor' codes exist.
  • Installation hardware, including hanging cables, snap-link, fast-adjusting cable clamps and wire ties, is packaged with each RS400i speaker.
  • New speed-tap power settings save customers time and money on ordering, inventory tracking, installation and system tuning.
  • 25, 70.7 and 100 Volt transformer options with coice coil/8 Ohm direct.
  • High-frequency driver protection with automatic reset.
  • Durable construction, powder-coated grille and terminal weather boot allow for indoor or outdoor installations.
  • May be used in conjunction with RS1001i Subwoofer for applicationsrequiring additional bass.


  • Frequency Response(-3 dB): 94 Hz - 22 kHz
  • Low Frequency(-10 dB): 72 Hz
  • Sensitivity: 85.0
  • Power Capacity RMS: 20
  • Max SPL dB @ 1 M: 98.0
  • Nominal Impedance: 8 Ohm
  • Transformer Options: 0.63 - 33 W
  • Woofer: 4.0" Poly
  • Tweeter: 1" BroadBeam®
  • Connections: 4-Pin Euroblock
  • Visible Height: 224 mm / 8.8"
  • Visible Diameter: 197 mm / 7.7"
  • Weight: 3.9 lbs / 1.8 kG
  • Colors: Black / White

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