User manual AEA MS38-MKII

[. . . ] The Rear Panel Beginning at the far right are the INPUT connectors; these are balanced and line-level. There are two for each channel: an XLR-3F(pin-2 high) and a three-circuit (TRS tip-high) 1/4" phone jack, wired in parallel for flexibility. Depending on the Mode you are using, these accept either the conventional stereo Left and Right signals or the Mid and Side component signals. [. . . ] In this mode, normal Left and Right stereo signals at the inputs are first converted to their Sum and Difference components and then processed through the MS Matrix. · When the button is depressed the unit is in the conventional MS mode. In this mode, component Mid and Side (or Sum and Difference) signals at the inputs are send to the MS Matrix for processing. The status of the INSERT pushbutton is indicated by its two adjacent LED's. When this button is out the input signals proceed directly to the MS Matrix for processing. When the button is in the input signals are first routed through any external signal processing connected via the Insert jacks on the rear panel. It is important to remember that any signal processing accomplished via the insert patch points will affect the signals prior to entering the MS Matrix and will therefore be represented at the outputs, in either Mode of operation. The WIDTH control represents the heart of the MS Matrix processing: It is via this knob that the stereo width of the input signals can be manipulated. · In the XY or Stereo Mode, when the knob is fully counter-clockwise, the output of both channels is the monophonic sum of the two input signals. When the knob is fully clockwise, the output of both channels is a monophonic signal, out-of-phase between the two channels, representing the difference between the two input signals. Between these two extremes, any degree of stereo width can be selected by rotating the knob: more mono to the left, more stereo separation to the right. · In the MS Mode when the knob is fully counter-clockwise, the output of both channels is simply a monophonic signal, representing the MID signal. When fully clockwise, the output at both channels is again a monophonic signal, representing the SIDE signal, equal in amplitude but out-of-phase between the two channels. As before, between these two extremes any degree of stereo width can be selected simply by rotating the knob: more mono to the left, more separation to the right. (The M+S output represents the Sum of the input signals and the M-S output represents the Difference. When inputting component Mid and Side signals, the M+S output will be the stereo channel represented by the positive lobe of the Side microphone signal. ) To the right of the logo is the BYPASS pushbutton. When this button is in (the normal setting) the signals at the input pass through the MS38-MkII with all the processing you select. [. . . ] Their products specialize in professional control of and translation between bi-phase, 9-pin serial and time code machines. Their new SR line provides low cost multiple machine remote controls for RS-422, Sony, and Tascam DA88 protocol machines. Our Audio Test Department buys, sells, trades, and rents new and used audio test gear. [. . . ]