Extron SI 3C LP 是全音域天花板扬声器，具有 4" (10.2 cm) 薄型金属腔体，用于阻燃天花板。这款薄型扬声器特别适合在天花板顶部空间紧张，如空气处理设备与天花板距离太近的情况下，进行天花板安装。3" (7.6 cm) 全音域驱动器具有 75 Hz ~ 17 kHz 的极宽频率范围、16 W 连续粉噪功率和 32 W 连续节目功率，以及极宽的 170° 锥形覆盖区域。对于天花板较低、具有中低功率需求的中小型教室来说，SI 3C LP 无疑是理想之选。

技术参数

SI 3C LP Ceiling Speaker
Audio/acoustic and electrical
Speaker type	Low profile ceiling speaker with metal back can
Frequency response	75 Hz to 17 kHz, -10 dB, half space
Power capacity	16 W continuous pink noise 32 W continuous program
Nominal sensitivity	83 dB SPL, 1 W, 1 m, half space
Nominal coverage angle	170° conical coverage
Nominal impedance	8 ohms
Driver	(1) 3" (76 mm) paper cone
Overload protection	Full range power limiter
Input connector	(1) 5 mm captive screw connector, 4 pole for 1 input and 1 loop-through
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	Ceiling mountable with included hardware: V-rails for 2' x 4' (600 mm x 1200 mm) ceiling tiles, and C-rings
Enclosure type	Metal back can; high-impact, fire-resistant (UL94V-0) plastic baffle/rim
Enclosure outer dimensions	4.0" H x 9.9" diameter (102 mm x 251 mm diameter)
Cutout dimensions	8.937" diameter (227 mm diameter)
Product weight	Single: 5 lbs (2.3 kg)
Shipping weight	Pair: 19 lbs (9 kg) with mounting kit
DIM weight, international	31 lbs (15 kg)
Regulatory compliance
Safety	CE, UL 2043, UL1480
EMI/EMC	CE, NFPA90, NFPA70A
Product warranty	5 years parts and labor
NOTE     All nominal levels are at ±10%.
NOTE     Specifications are subject to change without notice.
(8.0-071012-D6)