MD-1PM HDSS Audio Monitors produce the full human range of sound from 25Hz to 20kHz at levels in excess of 90 db. They are small with unparalleled clarity.

Clinical studies show that neural responses to sound can be changed intentionally through intensive listening. Auditory training programs assist cochlea implant users in sound interpretation, supplement hearing aid use, and even assist normal hearing persons.  HDSS audio monitors connected to the computer, TV, or smartphone may accelerate auditory training. 

The following universities use them.

Augustana University: In its audiology lab and speech science classes in Sioux Falls, South Dakota.  The program is headed by Dr. Percy C. Hanavan, AU.D .,who  currently teaches in the Communication Disorders program. He has taught audiology and technology courses the past 40 years. He has provided numerous presentations at the Hearing Loss Association of America (HLAA), American Speech-Language-Hearing Association, and American Academy of Audiology Conventions.

Gallaudet University: HDSS audio monitors are featured in the model apartment for the hard of hearing located in the Department of Hearing, Speech, and Language Sciences. The department  is headed by Dr. Larry Medwetsky, AU.D who has published and presented on many different topics with a special focus on the underlying speech processes and deficits in both individuals with normal hearing and hearing loss.

A vocal champion of HDSS sound technology for hard of hearing persons is the renowned Richard Einhorn.

Richard Einhorn, classical composer and board member of the Hearing Loss Association of America (HLAA). Mr. Einhorn has written opera, orchestral and chamber music, song cycles, multimedia events, film music, and dance scores. During the course of his career he has produced 30 classical recordings with artists like the New York Philharmonic, Philadelphia Orchestra, and Murray Perahia. His recording of the Bach Cello Suites with Yo-Yo Ma was awarded a Grammy.

Since losing much of his hearing overnight in 2010, he has also become a passionate advocate for people with hearing loss and been the subject and author of numerous articles and other media, including the New York Times, the Washington Post and international medical and audiology journals.