Auditory Speech Trainers (MODEL 300 M)

AUDITORY SPEECH TRAINERS (MODEL 300 M)

SERIES 300/301

Superior range of speech trainers : Arphis range of four speech trainer models incorporate several ingenious features. The four models are 300 B, 300 M, 301 MKI and 301 MKII.

1. Take anywhere models with easy portability
2. Simple to use
3. Individual controls for each ear
4. Visual display of sound level
5. High power speech
6. Battery or AC mains operation
7. Built-in voltage regulator
8. Tape/gram external Mic.facility  
9. Stereo channel option
10. option of LP and HP filters.

EASY PORTABILITY

These sleek portable instruments built into sturdy classic briefcase housing (model 300 B & 300 M) or handy calculator type box (model 301 MK I & MK II) can 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 attenuator/volume controls are provided for the spurpose.  

calibrated VU meter gives visual indication of speech level.

HIGH SPEECH POWER

A whopping 130 db maximum power level t help persons with profound deafness. Also selection of 110 db/120 db maximum available through selectors switch.

In series 300 models, precise selection of output levels is possible, through 10 db attenuator.

TAPE/GRAM/EXTERNAL MIC.FACILITY

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

OPTIONAL STEREO CHANNELS

Two completely independent channels available in model 300 B and model 301 MKI (Two built-in microphones, two mic preamplifiers, two power amplifier and stereo headphones.) This results in better speech discrimination, better judgement of position and direction of sound source.

FILTERS FOR SPEECH EMPHASIS

In model 300B/300M 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 filed, are possible.

STANDARD ACCESSORIES

High quality headphones

• set of batteries
• AC mains cord
• Duster cloth

ONE YEAR GUARANTEE

The equipment is guaranteed for a period of one year from the date of original sale.  

FEATURES