Monitor systems from Digilab Electronics

By Anatoly Sapunov

Review contents:

Audio accompaniment for TV programs The audio measuring equipment from LES Company Headphones and sets from Beyerdynamic Systems from D.A.S. Audio Monitor systems from Digilab Electronics Sound monitors ESI Acoustic systems for audio control in TV production. Monitors from Event Electronics Active sound monitors of the Fostex Company Devices for the audio control from Genelec Company Sound monitors from JBL Pro Equipment of Klark Teknik Company Loudspeakers KRK Audio equipment M-Audio Audio equipment Mackie Marshall Electronics monitors Monitors and headphones from Samson Snell and Wilcox equipment for the embedded audio control Tektronix instruments for audio signal measurements Production of Wharfedale Pro Yamaha monitor loudspeakers

Moscow Digilab Electronics Company has developed a series of control and measuring systems.

Spectator BSM-100 is the two-channel device, is concerned to a class of the professional equipment and is intended for work in audio and video studios, radio and TV studios, studios of cable TV, i.e. everywhere, where the audiovisual control of audio signals is required.

BSM-100 consists of two independent parts: the two-channel combined VU+PPM-meter of a level of audio signal Audio Level Meter and a meter of a difference of phases. Continuously lighting column of the level meter corresponds to average value, and separate lighting diode corresponds to peak value. The frosting mode of peak value 1 sec is established by internal jumper. The range of measurement is in the range 55 dB (-50/+5 dB). The meter of the phase difference shows a ratio of two signal phases with 18" step.

Monitoring System is the monitor system, including the stereo amplifier of headphones with level control, an additional stereo input, the switchboard of inputs and a stereo output to control monitors with level control.

Trim controls located on the back panel allow correcting a reference level of the indicator in the range 12 dB. The extreme right position of a control corresponds to the calibrated level of an asymmetrical signal 0 dB (0.775 V).

The opportunity of change of input resistance of the basic inputs from standard to 600 Ohms (Betacam) is stipulated.

BSM-100

BSM-103

Head Four SPH-104 four-channel headphones studio amplifier

Models BSM-102 (two-channel meter of a level) and BSM-103 (two-channel meter of a level + meter of the phase difference) are executed in half-rack case and are provided with characteristics similar to BSM-100.

Head Four SPH-104 is the four-channel studio amplifier of headphones and is provided for the sound program audio control. The master-section of the device is provided by two symmetric inputs, a control of an input level and the switch mono/stereo.

Each channel is provided by its own input, a control of an output level and the switch, allowing to choose a signal source from master-section or from its own input.

Own inputs of channels may be used in two variants: symmetric mono or asymmetrical stereo.

StudioAmp SPA-200 two-channel studio power amplifier

StudioAmp SPA-200 is the two-channel studio capacity amplifier, is provided for operation in the near field monitor systems. The amplifier is supplied with the following systems:

• Protection against short-term short circuit of an output of the amplifier and against presence of constant component ±8 V on the amplifier output;
• Load switching-off at excess of temperature 100°C;
• Delay of switching-on of the amplifier for elimination of transients;
• Automatic switching-off of the amplifier at mains voltage lower than 170 V.

Output capacity: 100 W and 8 Ohm, 120 W and 4 Ohm. Harmonic ratio: <0.01%

Material provided by Digilab Electronics Company