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Frequency and maximum output intensity
Frequency AC dB HL BC dB HL
Hz TDH39 B71
250 100 45
500 120 60
750 120 60
1000 120 70
1500 120 70
2000 120 70
3000 120 70
4000 120 60
6000 110 50
8000 100
Extended range function: If haven't select, AC output restrictions smaller than maximum output 20 dB
Input : pure tone, warble tone ±5%, 5Hz Sine wave frequency modulation.
Masking : Both air conduction and bone conduction can do masking
Computer Interface: USB data transfer interface, can transfer data to computer, and also can set up personalized print reports.
Output : Air conduction earphone(L/R), Bone conduction earphone(L/R), Insert earphone, Insert masking.
Transducer : TDH 39 earphone (standard configuration)
Ear-Tone 5A Insert earphone (Optional)
B71 bone conduction earphone (standard configuration)
Monitor function: Optional
Feedback words : Built-in feedback words microphone. 50-90 dB SPL can be continuous adjust in panel.
Send test voice: Manual or automatic/ Monopulse/ Multiple-pulse
Frequency selection :If you need to fast test, you can select 250 Hz,750 Hz,1500Hz, 4k Hz or 6k Hz.
Display : Letter-figure
Patient signal: Responser
Structure : Engineering plastic shell
Attenuator control : Standard rotary switch (can choose Push-button switch)
Power supply: Outer type regulated power supply (standard configuration), 220-230V,50-60 Hz
Fuse : T2A Built-in fuse
Size : 45cm*30cm*7cm
Net Weight :1775g
Standard accessory: TDH39 Air conduction earphone, B71 Bone conduction earphone, responder, power line, USB line, CD software
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