SoundTube SM31-EZ 3" Surface Mount Speaker, 20W RMS, Black, Single

SKU: SOSM31EZBK MFR: SM31-EZ-BK
$105.05
Earn VIP Reward Points

Key Features

  • Experience exceptional audio clarity with this SoundTube 3" surface mount speaker.
  • Enjoy versatile placement with this speaker's paintable ABS enclosure and sleek aesthetics.
  • Achieve optimal sound dispersion with a wide 70-degree coverage angle for immersive audio.
  • This UL-approved speaker delivers reliable performance for background music and paging.
  • Easily install this compact speaker in tight spaces, perfect for retail or office environments.
  • Customize your sound system with its 25/70.7/100V transformer for various applications.
See More Product Details
Special Order?Estimated to Ship: 09/09/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

1 Year

$7.99

2 Year

$12.99

3 Year

$21.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

SoundTube SM31-EZ Specifications

  • System Type

    3" full-range, surface-mount, 8 Ohms with optional 10W transformer for 25/70.7/100V applications

  • Impedance

    8 Ohms (nominal)

  • Sensitivity

    At 2.83V/1m: 85.0 dB
    At 1W/1m: 85.0 dB

  • Frequency Response

    170 Hz - 14 kHz (- 3 dB)
    120 Hz - 22 kHz (-10 dB)

  • Max. Program Power

    40W

  • Max. Continuous Power RMS

    20W

  • Max. Power SPL

    At 1m: 98.0 dB

  • Coverage Angle

    70 deg. (-6 dB at 2 kHz)
    45 deg. (-6 dB at 10 kHz)
    80 deg. (averaged from 2 to 10 kHz)

  • Angle of Pointability

    0 to 90 deg. vertical 0 to 359 deg. axial (full hemisphere)

  • Directivity Factor (Q)

    4.9dB (averaged 100Hz - 10kHz), 7.1dB (2kHz)

  • Directivity Index (DI)

    5.1dB ( averaged 100Hz - 10kHz), 8.5dB ( 2kHz)

  • Transducer

    Full-Range Driver: 76.1mm (3.0") Polypropylene driver with butyl rubber surround

  • Low Frequency Voice Coil

    19.0mm (0.75")

  • Enclosure Material

    ABS

  • Grille

    Corrosion-resistant, powder-coated aluminum Screw terminal

  • Inputs

    Screw terminal

  • Regulatory

    UL 1480 (UEAY) approved (SM31-EZ and transformer); CE Approved

  • RoHS

    Approved

  • Dimensions (HxWxD)

    Including mounting bracket: 110.4 x 110.4 x 96.9mm (4.35 x 4.35 x 3.81")

  • Weight

    0.6kg (1.4 lbs)

  • UPC Code

    752830446380

About SoundTube SM31-EZ

How can you enhance your audio experience with a speaker that blends high-quality sound with discreet, stylish design The SM31-EZ 3" Surface Mount Speaker is the answer for those seeking a durable, compact, and easy-to-install audio solution. Crafted by Soundtube, a leader in the audio industry, this speaker delivers exceptional performance in a package smaller than a 4" sphere, making it an unobtrusive addition to any space.

The SM31-EZ boasts a full-range sound profile, ensuring that every note and word is heard with crystal-clear clarity. Its proprietary attachment features an indexed swivel-joint, allowing for complete hemispherical aiming, which means you can direct the sound precisely where you need it. Whether you're setting the mood with music or ensuring every participant in a conference room can hear clearly, this speaker is engineered for versatility.

Weatherized components make the SM31-EZ suitable for both indoor and outdoor environments, so you can enjoy high-quality audio in retail spaces, restaurants, patios, educational facilities, and more. The speaker's 8 Ohms impedance ensures compatibility with a wide range of audio systems, and while it's a standalone powerhouse, you can also pair it with the SM1001p powered 10" subwoofer for an even more robust bass response down to 41 Hz (- 10 dB).

Installation is a breeze, thanks to its surface-mount design, which allows for rapid setup and low-profile mounting, perfect for smaller venues where space is at a premium. Choose the SM31-EZ 3" Surface Mount Speaker for an audio experience that is both aesthetically pleasing and sonically satisfying.

SoundTube SM31-EZ Features

  • One 3" (76.1mm) polypropylene driver with butyl rubber surround
  • Weatherized components for indoor/outdoor applications
  • Theft- and corrosion-resistant mounting mechanism with an indexed swivel-joint for precision aiming in any direction
  • Ultra-low profile ZeroReflection ABS enclosure (4" diameter by 3.5" deep, including mounting plate)
  • Corrosion-resistant, powder-coated aluminum grille
  • High quality black paint finish

Warranty Information

This product has a limited warranty of 60 months.

Key Features

  • Experience exceptional audio clarity with this SoundTube 3" surface mount speaker.
  • Enjoy versatile placement with this speaker's paintable ABS enclosure and sleek aesthetics.
  • Achieve optimal sound dispersion with a wide 70-degree coverage angle for immersive audio.
  • This UL-approved speaker delivers reliable performance for background music and paging.
  • Easily install this compact speaker in tight spaces, perfect for retail or office environments.
  • Customize your sound system with its 25/70.7/100V transformer for various applications.

What's in the box:

  • SoundTube SM31-EZ 3 " Surface Mount Speaker
  • SoundTube 5 Year Limited Warranty