GRAS 43BB-3 Low-noise Ear Simulator System
Volume: 1260 mm³ @ 500 Hz
Dyn range: 10.5 dB(A) to 113 dB
Based on IEC 60318-4
The 43BB-3 Low-noise Ear Simulator System is for acoustic low noise measurements on insert headphones, especially headphones with active noise cancellation. It is based on the IEC 60318-4 ear simulator standard. 43BB-3 Low-noise Ear Simulator System" includes a GRAS 12HF 1-Channel Power Module for Low-noise Systems.
43BB is shown in the product picture. For more information about 43BB-3 read the product introduction below.
Technology
Description
The GRAS 43BB-3 is a low-noise, high-sensitive ear simulator system for measurements of sound pressure levels close to or below the threshold of human hearing.
It is identical to the 43BB Low-noise Ear Simulator System except that it uses an 8-degree angled adapter for the preamplifier and therefore can be used in binaural setups inside test fixtures like the GRAS 45CA and 45CB.
43BB-3 is part of the GRAS 45CA-13 Test Fixture with Anthropometric Pinna for Low-noise tests.
Read about the 43BB here
Dimensions
Dimensions in mm
Ordering info
Included Items
| GRAS RA0234 | Low-noise Ear Simulator |
| GRAS 40AH | 1/2" Ext. Polarized Pressure Microphone, High Sensitivity |
| GRAS 26HG | 1/4" Preamplifier with 3 m Integrated Cable |
| GRAS 26HT | Gain and Filter Unit for 40HT |
| GRAS 12HF | 1-Channel Power Module for Low-noise Systems |
Accessories
| GRAS 42AA | Pistonphone, Class 1 |
| GRAS 42AP | Intelligent Pistonphone, Class 0 |
| GRAS RA0090 | 94 dB Pistonphone Coupler |
GRAS RA0237 | Straight Ear Canal Extension Kit for KEMAR |
| GRAS RA0172 | Pinna Holder Kit |
| GRAS AA0046 | 3 m LEMO 7-pin - LEMO 7-pin Cable for Low-noise measuring system |
| GRAS AA0047 | 10 m LEMO 7-pin - LEMO 7-pin Cable for Low-noise measuring system |
GRAS Sound & Vibration reserves the right to change accessories and specifications without notice.
