Discontinued - Heil Quiet Phone Pro
The Heil QUIET PHONE PRO is a result of years of research and development at Heil Sound, Ltd. While typical headsets are designed to reproduce audio, they pay no attention to the outside environment. In most cases, the ambient room noise is louder than the program information that comes through the speakers in the headphones.
Using the absolute latest active circuitry, Heil Sound has solved this problem. The ANC (active noise canceling) technology uses two small microphones placed deep inside each headphone speaker and wired to a differential amplifier, which switches the mics in or out of phase. As the microphones listen to the outside ambient noise as well as the high quality program information, the out-of-phase background noises are greatly reduced, particularly at frequencies below 400 Hz. So now you can enjoy your program source peacefully! Blower noise, jet engine noise, outside car traffic, ambient room noise, or the TV in the next room will all be reduced to levels tens of decibels below your program.
The most unique feature of this Heil Sound product is the optional Microphone Boom Assembly. Removing the small rubber plug, located above the ON/OFF switch, exposes a sturdy brass insert that allows attaching one of the five boom assemblies to the QUIET PHONE PRO. You can choose any of five different types of microphone elements that match various amateur radio transmitters, computers, podcasting and commercial radio/TV broadcasting. Your Heil QUIET PHONE PRO has now been turned into a very high quality professional boomset.
Mr. Gadget Reviews the Quiet Phone Pro
- Speaker type: Closed Dynamic
- Drive unit size: High output 40mm using Neodymium magnet assembly
- Weight: 195g
- Download Complete Specs
