DIRECTOR - the Modular Surround Controller System

Block Diagram Control Room PFL Section and Filters in Surround ControllerControl Room Input Section and Metering

Block Diagram Control Room Input in Director Surround ControllerThe input circuit of the monitor rail can either be electronically balanced or balanced and floating. A meter tap is located at the output of the input selector. There 8 meter outputs for the channels L, C, R, LS, RS, LFE, LT, and RT. A coding switch allows the configuration of the meters L, R, LFE, LT and RT for automated switching to the PFL signal. There are no standard metering systems supplied with the Director surround controller. However, and adt-audio 5MT meter bridge with an 8-channel meter block type S-LED can be installed with an adapter cable. Of course, any other meter can be installed as well.

The optional CUT-SOLO UNIT

An optional CUT/SOLO unit is available, which allows simple and fast control of the separate channels. It consists of a realy unit in the main frame and a remote control unit with 18 switches. The CUT/SOLO unit is located in the control room chain, directly after the meter tap. Therefore the mute circuit is placed before the summing matrix and the optional bass direction system. This position in the signal chain maintains problem free operation of the matrix stage and the bass redirector as well. As the signals of muted channel can contain low frequency signals that are distributed among other channels or that are added to output channels of the matrix stages, another position of the CUT/SOLO unit what actually not really mute the particular channel.

Each channel has a CUT and a SOLO switch. The cut switch mutes the respective channel. The ALL ON switch blocks all cut switches. Two switches determine the operation mode of the solo ciruitry. The SOLO SINGLE pressed, only one channel at a time can be in solo mode. Pressing another solo switch will reset all other switches. If SOLO SINGLE is not selected, any number of channels can be in solo mode. SOLO TO CENTER automatically activates SOLO SINGLE. In this mode the selected channel will be rerouted to the center output.

There are two additional functions that create more control possibilities. REV F-S reverses the front channels with their respective surround channels. So L is reversed with SL and R is reversed with SR. The REV L-R switch reverses the left and right front and surround channels. Front left is reversed with front right and surround left is reversed with surround right. This circuit is placed after the cut/solo switches, which makes rethinking with regard to the channel allocations unnecessary. The circuits operate indepently of each other and can be also used in parallel. The phase of the right channel can be inverted by an additional switch.

sing the optional, bass redirector, makes it possible to send the the LFE signal to any,or to all six loudspeakers. This featue let's you simulate the different variants in monitor system in film sound and domestic Hi-fi systems for comparision in the studio. With this unit we have produced an extensive, luxurious solution, which covers all versions. The unit offers te following possibilities:

For all 6 channels there is a BASS FROM switch, which redirects the signal through the bass matrix.The output of this matrix is passed through a low pass filter with adjustable frequency and level control, and the ADD-TO switch, will add the output of this unit, which represents the low frequency band signal below the selected edge frequency to the selected channel. The HPF-ON switches on each channel are used to activate a high-pass filter which also uses the selected edge frequency of the bass matrix. In this way it is possible to apply the low frequency signal to any number of output channels, while all other output channels can be set in a quasi mid-high speaker mode using the high-pass filter.

In addition, all the low frequency information that is added by the FROM switches to the bass matrix can be sent through a separate level control to a dedicated subwoofer output. This feature is activated by the SUBWOOFER ON switch. The REDIR ON switch insert the entire unit into the signal chain; however, the additional subwoofer output is active even if the unit is in bypass mode.

A 4 position stepper switch selects the crossover frequency for the filters. The default frequency are 50 Hz, 80 Hz, 120 Hz and USER. The user frequency is 160 Hz if not otherwise specifed by the customer.