Extron SI 3 是紧凑型表面安装式扬声器，具有 3"（7.6 cm）全音域驱动器，与专有锥形障板结合，可优化整个聆听区域的覆盖范围。该驱动器具有极其宽广的频率响应，从 75 Hz 至 18 kHz，以及 16 W 连续粉红噪声和 32 W 连续节目功能。内部过载保护线路可防止过量输入电平导致驱动器损坏。

技术参数

SI 3 Surface Mount Speaker
Audio/acoustic and electrical
Speaker type	Full range surface mount speaker
Frequency range	75 Hz to 18 kHz, -10 dB, full space
Power capacity	16 W continuous pink noise 32 W continuous program
Nominal sensitivity	83 dB SPL, 1W, 1 m, full space
Nominal impedance	8 ohms
Driver	(1) 3" (76.2 mm) paper cone
Overload protection	Full range power limiter
Input connector	(1) 2-pin spring terminal
General
Package	2 speakers (1 pair)
Ambient temperature/humidity	Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
Mounting	Vertically and horizontally wall mountable with included wall mountable V-lock brackets
NOTE     V-lock brackets can be angled up to 20° upward, 35° downward, 30° to the left, 30° to the right, and rotated 360°.
Enclosure type	Plastic, trapezoidal, with metal grille and bass reflex ports
Enclosure outer dimensions	8.75" H x 5.75" W x 5.6" D (22.2 cm H x 14.6 cm W x 14.2 cm D)
Product weight	Single: 4.0 lbs (1.8 kg)
Product warranty	5 years parts and labor
NOTE     All nominal levels are at ±10%.
NOTE     Specifications are subject to change without notice.
(1531-D7)