Product Description
SoundTube SM31-EZ 3" Surface Mount Speaker
Overview
The SM31-EZ is a premium full range 3 inch surface mount speaker, with overall dimensions smaller than a 4 inch sphere. The speaker incorporates a theft and corrosion resistant mounting mechanism with indexed swivel joint for complete hemispherical aiming. SM31-EZ speaker components have been weatherized for indoor and outdoor applications. The SM31-EZ is an 8 ohm speaker with an ultra-low profile ZeroReflection™ABS enclosure (4 inch diameter by 3.5 inch deep, including mounting plate). IP-Rating: IP64.
Specifications
| Manufacturer | SoundTube |
|---|---|
| Manufacturer's Category | SM-EZ Economical Surface Mount |
| Height | 4.35 in / 110.5 mm |
| Width/Diameter | 4.35 in / 110.5 mm |
| Shipping Weight | 1.85 lbs / 0.84 kg |
| Carton Height | 6.25 in / 158.75 mm |
| Carton Length | 6.5 in / 165.1 mm |
| Carton Width | 6.25 in / 158.75 mm |
| Certifications | CE, RoHS, UL1480A |
| Enclosure Properties | ABS Glass Fiber Reinforced, Injection Molded, Sealed |
| Enclosure Volume | 60 cu in / 983.22 cu cm |
| Optional Accessories | Junction Box (AC-SM31-JBOX)|Black Transformer (AC-SM31-XFMR-BK)|Black Wall Plate (AC-SM31-MP-BK)|Black Grille (GRL-RS31-BK) |
| Source Inputs | Terminal Strip |
| IP Rating | IP64 |
| Coverage Angle (±6dB @ 2kHz) | 43° |
| Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz) | 4.9 and 7.1 |
| Directivity Index (DI) dB (Averaged 100Hz - 10kHz, @ 2kHz) | 5.1dB and 8.5dB |
| Frequency Response (± 10 dB) | 120 Hz - 22 kHz |
| Frequency Response (± 3 dB) | 170 Hz - 14 kHz |
| Grille Properties | Aluminum, Powder-Coated |
| Low Frequency Voice Coil | 0.75 in / 19 mm |
| Max. Continuous Power RMS | 20W |
| Max. Program Power | 40 W |
| Minimum Impedance (Ω Ohms) | 8 Ω |
| Mounting Depth | 3.81 in / 96.8 mm |
| Nominal Impedance (Ω Ohms) | 8 Ω |
| Fullrange Driver | 3" Polypropylene driver with butyl rubber surround |
| Sensitivity dB @ 1W/1M | 85 dB |
| Sensitivity dB @ 2.83V/1M | 85 dB |
| Transformer Options | 25 / 70.7 / 100 V |
