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Use for Testing the spurious noise of the loudspeaker、headphone、loudspeaker system ... etc.,  suitable for use in production line、 R&D、 quality control and incoming parts inspection department.

■  Low Distortion Sine Wave

THD≦0.15%, 20Hz~20 kHz. Best suitable for testing the spurious noise of the SPK.  and other electroacoustic  components.

■  Digital Display Voltmeter and Frequency Counter, complies the need for precise test.

■ Has both manual and auto logarithmic sweeps. Allows random setting of start／stop  frequency  for  sweep  range. 

■  Simple to operate, non-experts can operate.

■  Four kinds of  built-in power amplifier which are optional to buy. ( 20W, 60W, 100W & 200W ). All designed with triple protection circuitries which permit long-term short circuit.

■  High resolution ( 0.001V ) voltmeter :

Low voltage needed in testing the receiver & headphone can be obtained precisely by using coarse & fine volume control.

■  With the supplement of frequency fine adjustment, the precise lowest resonant Fo value of Loudspeaker can be easily obtained.

■  Excellent reliability :

With the accumulation of more than 20 years experience in professional design, 7116C has ultra low faulty rate, high reliability, can sustain whole day continuous testing.

Specifications  of  Model - 7116C

Freq. Range :  20Hz ∼ 20 kHz in one range.

Freq. Response : ≦ ± 0.25dB,  20Hz ∼ 20 kHz.

Sweep Mode : Manually or automatic log. sweep in one range. Setting spot ( random ) frequency also available.

Signal :  Sine wave, THD ≦ 0.15%,  ( 0.1% Typical.)     ( 20Hz ∼ 20 kHz.)

Sweep Time: 0.3∼40 second continuously adjustable.

Frequency Counter :  4 digits display.

Resolution :  1 Hz.

Accuracy :  ± 1 Hz.

Load Impedance : ≧ 3.2 Ω.

Voltmeter :  3¾ digits ,  Auto-ranging.

Low Range :  0.000v ∼3.300v.

Resolution :  0.001v

High Range :  3.300v ∼ 40.00v.

Resolution :  0.01v.

Accuracy :  ± 0.6%  of  reading  ± 2dgts.

Dimension : 36 (L) × 27 (D) × 13 (H) cm.

7116C ( 20W ) : 6 KGS. ( Approx.)

7116C ( 60W ) : 8 KGS. ( Approx.)

7116C ( 100W ) : 10 KGS. ( Approx.)

7116C ( 200W ) : 19 KGS. ( Approx.)

Built-in Amplifier output voltage :