Superior range of Speech Trainers

Range of Speech Trainer models incorporate several ingenious features. The Two models are 300 B & 301 MK I.

  • Take-anywhere models with easy portability
  • Simple to use
  • Individual controls for each ear
  • Visual display of sound level
  • High Power speech
  • Battery or AC Mains operation
  • Built-in Voltage Regulator
  • Tape/ External Mic. Facility
  • Stereo Channel Option
  • Option of LP and HP Filters


Easy Portability

These sleek portable instruments, built into sturdy classic briefcase housing (models 300 B) or handy calculator type box (model 301 MK I) can be carried to home, Clinic or school with ease.
Light and rugged housing is made of impact resistant, unbreakable polysterene and ABS materials.

Simple Controls
Sound levels individually selectable at left and right ears. Two calibrated attenuators / volume controls are provided for the purpose. Calibrated VU Meter gives visual indication of speech level.


High Speech Power

A whopping 130 dB maximum power level, to help persons with profound deafness. Also selection of 110 dB/120 dB maxima available through selectors switch.
In series 300 models, precise selection of output levels is possible, through 10 dB attenuators.


Tape/External Mic. Facility

Recorded speech and music can be fed in directly. External microphone can be used conveniently for crystal clear reception.


Optonal Stereo Channels

In model 300 B it is possible to have selective speech emphasis (LP and HP) to rectify low-frequency and high-frequency hearing losses. Speech quality can thus be tailored to individual needs.


Filters for Speech Emphasis

In model 300 B it is possible to have selective speech emphasis (LP and HP) to rectify low-frequency and high-frequency hearing losses. Speech quality can thus be tailored to individual needs.


Modular Design for Easy Servicing

All electronic circuitry are assembled in modular, plug-in type circuit boards. Faster fault diagnosis and quick repairs, even in the field, are possible.


GROUP HEARING AID SYSTEM AND INDUCTION LOOP :

For Deaf - Training Institutions

Sonic Hearing Aid Center supplier of Group Hearing Aid System to schools for deaf and speech clinics. The expertise gained in this field is now available to you in any of the various types of Group Hearing Aid system.

Group Hearing Aid Systems are not tailored to cater to Class of any size, be it of 2 Students of 12 Students or even more. Group Hearing Aid Systems can be used simultaneously or separately with the desk-wired headsets and a magnetic induction loop.

The magnetic loops create an electromagnetic field within the class-room and the teacher's or student's voices can be heard by a student's wearing his own pocket or body-worn hearing aid. This permits the hearing aid to act like a pocket transistor radio, and student can move about freely in the class-room during play or learning and yet hear the teacher or other students talking from their desks.

Micro Phone

  • Teacher's and Student's microphones are of the highest quality with special emphasis at speech frequencies at the sibilance points to enhance intelligibility of such sounds as sh, oh
  • Students microphones are with steady stands.
  • Teacher's microphones are supplied with a neck-harness with stand.

Head Phone Control Box

  • Very neat and unobtrusive.
  • Separate control for each ear.
  • Dial calibrated in decibles to enable adjustment of each ear to its individual Loss.