The GS 162-4 speaker system
With the introduction of the Biflex principle - the problem of obtaining full frequency reproduction from a single-cone loudspeaker was...
Model 162
This Grason Stadler model 162 Speech Audiometer recently appeared on eBay. It was one of the last few production runs for this...
Audiometric headsets
In the 60's GS used the telephonics TDH-49 10 ohm earphone as a transducer because it had a better frequency response in the higher...
The 1701 Audiometer
In 1969 Grason-Stadler introduced the 1701 audiometer. It was the company's first combination pure tone/speech audiometer and would...
1703 Recording Audiometer
1. Independent testing of both ears at seven frequencies The 1703 automatically presents seven pure-tone signals successively — 500,...
Enter the microprocessor
The 1723 Middle-ear analyzer is a prime example of the ultimate in mechanical and analog design. It was without question the best in the...
During the 70's
Instruments for Hearing Research The 1703 Recording Audiometer was designed to be used under conditions in which large numbers of...
