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 | |
| 8000 | 100 |
Technical Specification
| PARAMETER | SPECIFICATION |
| 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) |
| B71 bone conduction earphone (standard configuration) | |
| Ear~Tone 5A Insert earphone (Optional) | |
| 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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