Mackie 24.8Bus Architect's Specifications - Page 4

4 unbalanced transformerless 1/4" TS connectors in the master output section, designated Mix-B (Monitor) Outputs L/R. 19. MASTER SECTION PHONES 1, PHONES 2. The audio mixer's master section shall include two headphone systems, each with a rotary level control to govern the overall output level as delivered to the respective outputs in the master section designated Phones 1 and Phones 2. In addition, each phones system shall include selection switches that allow signals from the control room, Mix-B (Monitor), AUX send 3(L) and 4(R), AUX send 5(L) and 6(R), or from the stereo external inputs to be used individually or together in any combination to drive the phones output. Note: Selecting Control Room will override all other selections. Solo switching shall provide stereo solo-in-place auditioning of the overall signal level on each of the phone systems via the control room/studio monitor outputs. If control room is the source for a phones circuit, the solo function shall be disabled. Output signals from Phones 1 and Phones 2 shall be via 1/4" stereo connector (tip=left, ring=right). 20. MASTER SECTION CONTROL ROOM AND STUDIO LEVEL (SPEAKERS). The audio mixer's master section shall include two rotary level controls to govern the overall output level as delivered to the control room and studio outputs, respectively. In addition, the control room/ studio circuits shall provide selection switches that allow signals from the main L/R Bus, Mix-B (Monitor), tape, or from the external inputs to be used individually or together in any combination to drive the respective outputs. An additional switch shall cause the control room/studio outputs to operate as stereo L/R or mono L+R. Outputs from the control room and studio section shall be via unbalanced transformerless 1/4" TS connectors in the master output section. Input to the 2-track return for the control room and studio section shall be via unbalanced transformerless 1/4" TS connectors in the master section, and shall be designated 2-track input. Input to the external input for the control room and studio section shall be via unbalanced transformerless 1/4" TS connectors in the master section, and shall be designated external input. 21. MASTER SECTION SOLO. The audio mixer's master section shall include a rotary level control to govern the overall level of the stereo-in-place solo system. The rotary control shall have a detent at top dead center, which shall be the Unity Gain calibration point employed for proper inline input/output channel level checking in solo mode. In addition, the solo level control shall have an operator's stress reducing device in the form of a big rude flashing LED that indicates solo system operation, working in conjunction with the individual solo LED's on each panel or output subsection. 22. MASTER SECTION TALKBACK. The audio mixer's master section shall include a rotary level control to govern the level of the talkback system, with associated selection momentary switches that allow signals to be sent from the talkback to the Submaster and MainL/R outputs; AUX send 1; AUX send 2; to Phones 1, Phones 2 and Studio outputs, individually or together in any combination. A microphone shall be provided inside of the audio mixer's front panel in the master section to drive the talkback system. 23. MASTER SECTION - AUX SENDS. The audio mixer's master section shall include six rotary level controls to set overall signal levels delivered to the AUX Send outputs for AUX 1, AUX 2, AUX 3, AUX 4, AUX 5, and AUX 6. Each AUX Send shall have an associated solo switch to allow an individual AUX Send to be singled out of the mix and auditioned alone or in combination with any other signals in the control room and studio outputs. Additionally, activating this solo shall allow the AUX Send's output level to be observed on the solo/main bargraph meters. 24. MASTER SECTION - AUX RETURNS. The audio mixer's master section shall include six rotary level controls to set overall signal levels returned via the stereo AUX Returns which shall be designated AUX Return 1, AUX Return 2, AUX Return 3, AUX Return 4, AUX Return 5, and AUX Return 6. Each AUX Return shall have an associated solo switch to allow an individual AUX Return to be singled out of the mix and auditioned alone or in combination with any other signals in the control room and/or studio outputs. Additionally, activating the solo shall allow the AUX Return's output level to be observed on the solo/main bargraph meters. Switchable assignment routing switches 4