SP-1208

Dynamic Speaker Electroacoustic Characteristics Sound Pressure Level 63±3dB at 0.8Vrms/10cm at 2KHz (Mounted in free air without baffle) Measuring conditions and procedures shown in Fig 1 & Fig 2 SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Resonance Frequency 500 +/- 15% Hz, 1 Vrms input in free air 800 +/- 15% Hz, 1 Vrms input in 0.5cc Box Rated Frequency Range 100-10KHz Frequency Response Product Number: SP-1208 SP-1605-3 See Figure 1 THD See Figure 2, Table 2 (Mounted in Free air 0.5 at without baffle) Test at 0.25w/10cm Rub & Buzz A sine sweep among 100-1500Hz at rated noise power with 0.5cc back cavity will not result in any buzzing or extraneous sound. AC Impedance 8±15% Ω@2KHz, 1Vrms input Release | Revision: A/2016 Input Power CONTENTS This document contains the technical specifications for the dynamic speaker unit. Page 1 Speaker Electroacoustic Characteristics Rated Noise Power: 0.25Watts (in 0.5cc box) Short term Power: 0.5Watts (in 0.5cc box) Dimension 12.0 x 8.0 x H2.63mm IP Level No rating Polarity Requirements Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Polarity When a DC source’s “+” polarity is attached to speaker’s “+” polarity,”-” polarity is attached speaker’s “-” polarity, the membrane will move forward. Test Climatic Condition Page 3 Test Method Magnetic Polarity Top of the magnet is the north pole. Test Setup Typical Frequency Response (Fig. 1) Reliability Tests Magn dB re 20μPa Page 4 Reliability Tests Table 2 Limit Data for THD Test Method Freq.(Hz) Limit (%) 500 30 600 20 1500 10 15000 5 Page 5 Dimensions Page 6 Packing www.soberton.com 1 Typical Frequency Response (Fig. 2) Typical THD SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Product Number: SP-1208 SP-1605-3 Typical IMP Curve, 0812,1 VRMS INPUT Release | Revision: A/2016 CONTENTS This document contains the technical specifications for the dynamic speaker unit. Page 1 Speaker Electroacoustic Characteristics Test Climatic Condition Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Test Climatic Condition Page 3 Test Method Test Setup Reliability Tests Ambient Temperature 15˚C -35˚C, preferably 20˚C Relative Humidity 25% to 75% Air Pressure 86kPa - 106kPa Refer to IEC 268-1 Page 4 Reliability Tests Test Method Page 5 Dimensions Page 6 Packing www.soberton.com 2 Test Method SPL and Frequency Response Curve SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Product Number: SP-1208 SP-1605-3 The loudspeaker in 0.5cc box shall be mounted in specified baffle, the measuring microphone shall be free-field microphone and placed at specified distance from DUT, on axis. The drive power is 0.4Watts, and swept sine-wave range is 20Hz to 20KHz with a R40 of test sequence. THD Tested per Section 9.1 and driven at 0.25Watts , sweep at specified frequency range with R40 test sequence. Test Setup (Fig. 3) Speaker Measurement Circuit Release | Revision: A/2016 Reliability Tests CONTENTS This document contains the technical specifications for the dynamic speaker unit. Page 1 Speaker Electroacoustic Characteristics Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Test Climatic Condition The sound pressure as specified shall neither deviate more than ±3dB from the initial value, nor have any significant damage after any of following testing. High Temperature Test High Temperature +75±2℃ Duration 96 hours Low Temperature Test Low Temperature 25±2℃ Duration 96 hours Heat Shock Test (See in Fig. 4) High Temperature +75±2℃ Page 3 Test Method Low Temperature -40±2℃ Test Setup Changeover Time < 30 seconds Reliability Tests Direction 1 hour Page 4 Reliability Tests Cycle 10 Test Method Page 5 Dimensions Page 6 Packing www.soberton.com Humidity Test Temperature +40±2℃ Relative Humidity 90%~95% Duration 48 hours 3 Reliability Tests (continued) Temperature Cycle Test (See in Fig.5) Temperature -40℃ +75℃ SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Duration 45 minutes 45 minutes Temperature Gradient 1~3℃/min. Cycle 10 Drop Test Mounted with dummy set mass 100 g Product Number: SP-1208 SP-1605-3 Height 1.5m Cycle 6 (1 each plain) On to the concrete board Load Test Noise Signal Pink noise (EIA filter) Input Power 0.25W (1.4Vrms) Duration 96 hours Test Method Release | Revision: A/2016 Heat Shock Test (Fig. 4) CONTENTS This document contains the technical specifications for the dynamic speaker unit. Page 1 Speaker Electroacoustic Characteristics Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Test Climatic Condition Temperature Cycle Test (Fig. 5) Page 3 Test Method Test Setup Reliability Tests Page 4 Reliability Tests Test Method Page 5 Dimensions Page 6 Packing www.soberton.com 4 Dimensions Tolerance: ±0.5 (unit: mm) SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Product Number: SP-1208 SP-1605-3 Release | Revision: A/2016 CONTENTS This document contains the technical specifications for the dynamic speaker unit. No. Part Name Material Quantity 1 Front Cap PEEK 1 2 Frame Iron 1 Page 1 Speaker Electroacoustic Characteristics 3 Terminal SPCC 1 4 Magnetic Cover PPA 1 5 Diaphragm PPA 1 Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Test Climatic Condition Page 3 Test Method Test Setup Reliability Tests Page 4 Reliability Tests Test Method Page 5 Dimensions Page 6 Packing www.soberton.com 5 Packing SP DYNAMIC SPEAKER UNIT Acoustic Product Specification Product Number: SP-1208 SP-1605-3 Release | Revision: A/2016 CONTENTS This document contains the technical specifications for the dynamic speaker unit. Page 1 Speaker Electroacoustic Characteristics Polarity Requirements Typical Frequency Response Page 2 Typical Frequency Response Test Climatic Condition Page 3 Test Method Test Setup Reliability Tests Page 4 Reliability Tests Test Method Page 5 Dimensions Page 6 Packing www.soberton.com 6