• S-355 OVERVIEW

• S-355 SPECIFICATIONS

• S-355 MEASUREMENT DATA

S-355 SPECIFICATIONS

FUNCTION OVERVIEW

Measurements & Judgments	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.
Sweep Frequency Range	10 Hz ~ 100kHz *User-settable range
Rub & Buzz Range	-100 dB or less
SPL Range
Input Range	70 ~ 160 dB SPL in 10dB steps (-36dBV/Pa mic. sensitivity)
Accuracy	±0.1dB
Input Freq. Range	±0.2dB (20 ~ 20kHz) ±0.5dB (10 ~ 100kHz)
Distortion Test Range	-70dB or less (SPL: 90dB range, sweep method)
Impedance Test Range
Range	0.5 ~ 200 Ω (auto range)
Accuracy	±1% / 1 ~ 50ohm ±2% / 0.5 ~ 1ohm, 50 ~ 100ohm ±5% / 100 ~ 200ohm (1kHz)
Dynamic Range	A/D Converter: 24 bit Display: 120 dB Sampling: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz, 220 kHz
Drive Power & Voltage	・ Built-in Power Amplifier: 50 W max. (4 ~ 8 Ω) 0.01 ~ 20 V ・ External Power Amplifier: 100 W max. (0.5 ~ 8 Ω) 0.01 ~ 28 V *Use beyond maximum output is also possible. Please inquire for the conditions.
Output Frequency	±0.2dB / 20 ~ 20kHz ±0.3dB / 10 ~ 20kHz ±1.0dB / 20 ~ 50kHz ±1.5dB / ~ 100kHz at 1W *The above speaker drive voltage deviation can be canceled by automatic correction (include speaker cables)
Sweep Method	Logarithmic sweep
Sweep Time	2 sec. std. ( 20 Hz ~ 20 kHz ) 0.5 sec. min.~ 100 sec. max.
Frequency Accuracy	±0.05%
Frequency Resolution	20 Hz ~ 20 kHz / 481 points ( 1/48 oct. 160 points / decade)
Size
S-355 Measuring Unit	S-3552B: 430 (W) x 88 (H) x 420 (D) Weight: 8kg
External Power Amplifier	S2533: 430 (W) x 133 (H) x 450 (D) Weight: 16kg
Power Supply	AC100V ~ 240V, 50 / 60 Hz
Environmental	15 deg. C ~ 35 deg. C 10 % ~ 90 % RH
Standard Composition	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

PERIPHERAL DEVICES (OPTIONS)

Personal Computer	Windows 10
Display	WXGA ( 1280 x 800 ) or more
Remote Control	2 buttons with pass/fail indicators
Microphone	1/2 inch and 1/4 inch measurement electret and condenser types
Anechoic Box	Small model (43L) and medium model (140L)
Uninterruptible Power Supply	600VA
Noise Cut Transformer
SPL Calibrator	Pistonphone
Standard Resistor	For impedance calibration
Customization	We take various special orders from customers depending on your test purpose and environment. Please let us know your requirements.

Specifications are subject to change without notice.

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