腔体喇叭型号：HP2831-4F-0488C-BOX规格：28*31mm 4Ω3W泡盆铝帽

• Size： 28*31mm H 15mm
• Impedance： 4 ±20% Ω
• SPL(1W 1m sine wave) 91±3dB(at 1.0KHz )
• Resonance frequency 500±20% Hz
• Frequency Range Fo~10KHz
• Rated input power 2 W
• Maximum input power 3 W
• Buzz & Rattle must be normal (at sine wave 2.8V)
• THD MAX 5% (RATED POWER INPUT at1000HZ）
• Operating temperature -20~+60℃
• Storage temperature -20~+60℃
• Environmental Protection Regulation RoHS