{"id":1113,"date":"2021-06-03T17:00:14","date_gmt":"2021-06-03T08:00:14","guid":{"rendered":"https:\/\/www.etani.co.jp\/en\/?post_type=product&p=1113"},"modified":"2026-07-23T16:16:26","modified_gmt":"2026-07-23T07:16:26","slug":"s355-specification","status":"publish","type":"product","link":"https:\/\/www.etani.co.jp\/en\/product\/s355\/s355-specification\/","title":{"rendered":"S-355 SPECIFICATIONS"},"content":{"rendered":"\n

S-355 SPECIFICATIONS<\/h3>\n\n\n\n

FUNCTION OVERVIEW<\/h4>\n\n\n\n
Measurements
& Judgments<\/td>		1) Sound pressure level frequency response
2) Total harmonic distortion, 2nd & 3rd harmonic distortions
3) Impedance characteristics
4) Phase characteristics
5) Rub & buzz frequency response
6) Sensitivity (S0)
7) Impedance (Z0)
8) Lowest resonance frequency (f0)
9) Polarity (Po)
10) Isolation Test (option)
If the voltage is the same, multiple items are tested at once. If the test voltage is different, the system changes for each voltage, and sweeps to measure and process. <\/td><\/tr>
Sweep Frequency Range<\/td>10 Hz ~ 100kHz
*User-settable range<\/td><\/tr>
Rub & Buzz Range<\/td>-100 dB or less<\/td><\/tr>
SPL Range<\/td><\/td><\/tr>
Input Range<\/td> 70 ~ 160 dB SPL in 10dB steps (-36dBV\/Pa mic. sensitivity)<\/td><\/tr>
Accuracy<\/td>\u00b10.1dB<\/td><\/tr>
Input Freq. Range<\/td> \u00b10.2dB (20 ~ 20kHz) \u00b10.5dB (10 ~ 100kHz) <\/td><\/tr>
Distortion Test Range<\/td>-70dB or less (SPL: 90dB range, sweep method)<\/td><\/tr>
Impedance Test Range <\/td><\/td><\/tr>
Range<\/td> 0.5 ~ 200 \u03a9 (auto range)<\/td><\/tr>
Accuracy <\/td> \u00b11% \/ 1 ~ 50ohm \u00b12% \/ 0.5 ~ 1ohm, 50 ~ 100ohm \u00b15% \/ 100 ~ 200ohm (1kHz)<\/td><\/tr>
Dynamic Range<\/td>A\/D Converter: 24 bit Display: 120 dB
Sampling: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz, 220 kHz<\/td><\/tr>
Drive Power & Voltage<\/td>\u30fb Built-in Power Amplifier: 50 W max. (4 ~ 8 \u03a9) 0.01 ~ 20 V
\u30fb External Power Amplifier: 100 W max. (0.5 ~ 8 \u03a9) 0.01 ~ 28 V
*Use beyond maximum output is also possible. Please inquire for the conditions.<\/td><\/tr>
Output Frequency<\/td> \u00b10.2dB \/ 20 ~ 20kHz \u00b10.3dB \/ 10 ~ 20kHz \u00b11.0dB \/ 20 ~ 50kHz \u00b11.5dB \/ ~ 100kHz at 1W
*The above speaker drive voltage deviation can be canceled by automatic correction (include speaker cables)<\/td><\/tr>
Sweep Method<\/td>Logarithmic sweep<\/td><\/tr>
Sweep Time<\/td>2 sec. std. ( 20 Hz ~ 20 kHz ) 0.5 sec. min.~ 100 sec. max.<\/td><\/tr>
Frequency Accuracy<\/td> \u00b10.05% <\/td><\/tr>
Frequency Resolution<\/td>20 Hz ~ 20 kHz \/ 481 points ( 1\/48 oct. 160 points \/ decade)<\/td><\/tr>
Size<\/td><\/td><\/tr>
S-355 Measuring Unit<\/td>S-3552B: 430 (W) x 88 (H) x 420 (D) Weight: 8kg<\/td><\/tr>
External Power Amplifier<\/td>S2533: 430 (W) x 133 (H) x 450 (D) Weight: 16kg <\/td><\/tr>
Power Supply<\/td>AC100V ~ 240V, 50 \/ 60 Hz<\/td><\/tr>
Environmental<\/td>15 deg. C ~ 35 deg. C 10 % ~ 90 % RH<\/td><\/tr>
Standard Composition<\/td>1) Measuring Processor 1 set
2) Built-in or External Power Amplifier 1 set
3) Remote Control: Basic Model 1 set
4) Cables 1 set
5) Sweep Measurement Software 1 set<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n

PERIPHERAL DEVICES (OPTIONS)<\/h4>\n\n\n\n
Personal Computer<\/td>Windows 11<\/td><\/tr>
Display<\/td>WXGA ( 1280 x 800 ) or more<\/td><\/tr>
Remote\u2002Control<\/td>2 buttons with pass\/fail indicators<\/td><\/tr>
Microphone<\/td>1\/2 inch and 1\/4 inch measurement electret and condenser types<\/td><\/tr>
Anechoic\u2002Box<\/td>Small model (43L) and medium model (140L)<\/td><\/tr>
Uninterruptible Power Supply<\/td>600VA<\/td><\/tr>
Noise Cut Transformer<\/td><\/td><\/tr>
SPL Calibrator<\/td>Pistonphone<\/td><\/tr>
Standard Resistor<\/td>For impedance calibration<\/td><\/tr>
Customization<\/td>We take various special orders from customers depending on your test purpose and environment. Please let us know your requirements.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Specifications are subject to change without notice.<\/p>\n","protected":false},"featured_media":0,"parent":1111,"menu_order":14,"template":"","product_category":[8],"class_list":["post-1113","product","type-product","status-publish","hentry","product_category-quality"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t