SERIOUS ABOUT SOUND
HeadMaster Headphone System
Description
The HeadMaster system offers two different approaches to the problems of headphone monitoring in the recording studio, the broadcast environment, and on stage.
- HeadLite is a self contained 1U rack mount units consisting of two stereo/four mono inputs, with four independent stereo headphone amplifiers (see HeadLite). The HeadLine /BeltPak system consists of an audio and power distribution unit (HeadLine) with satellite amplifiers (BeltPak) for individual listeners. Both options are designed to give crystal clear, high level reproduction. Switching, routing, mixing and level control options have been carefully thought out to give maximum flexibility without compromising audio quality. The HeadLite is normally available from stock. The HeadLine/BeltPak systems are available to order.
HeadLine and BeltPak Multi I/O modular system
HeadLine
The HeadLine is a power and audio distribution unit for up to 32 remote BeltPak headphone amplifiers. It will take up to eight input signals with standard routing similar to that used on the HeadLite system. There are four stereo outputs, each of which is capable of feeding up to eight BeltPaks. The user may specify the type of housing and connector configuration most suitable for their application. HeadLine has been supplied in housings ranging from rack mount cases with balanced inputs selected via rotary switches to a smallish box which has been sitting unnoticed in the back of a rack. The final configuration of any HeadLine/BeltPak system is a result of a clear definition of the users requirements, reached through detailed discussion. The system has been designed in a modular and flexible way, so customisation is standard, and not a costly extra.
BeltPak
BeltPak is a satellite headphone amplifier for use in conjunction with HeadLine. It is capable of driving two pairs of headphones. The BeltPak is housed in a cream ABS textured finish box measuring around 100mm x 60mm x 25mm, with a belt clip, two jack sockets and a volume control.
Power and audio connection is via a 9 pin D connector. By using high value audio input decoupling capacitors (2 x 220m F back to back) low frequency response is extremely good, even over long cable runs, with response flat down to 10Hz. The power rails are also decoupled with high value capacitors (4700m F) which ensures a minimum of crosstalk even at high frequencies for long cable runs.
Specifications for HeadLite & BeltPak (20Hz to 20kHz)
- Power Output >750mW/channel
- Distortion @ +20dBm into 220R < .002%
- Signal to Noise (A Weighted) < -124dB
- Frequency response Flat 10Hz-20kHz