Mackie 32.8Bus Architect's Specifications - Page 3

3 from the primary signal path and inserted into the Mix-B (Monitor) signal path. Associated switching in the AUX send section affects the Mix-B (Monitor) Buses (see paragraph 8). 13. I/O CHANNEL SOLO, WITH LEVEL CHECKING. Each inline input/output channel shall include stereo-in-place solo switching that allows the individual channel 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 the channel's solo shall allow the channel's output level to be observed on the solo/main bargraph meters, reflecting the L/R balance the signal has on the main L/R mix Buses. 14. I/O CHANNEL MUTE WITH INDICATOR. Each inline input/output channel shall include a mute switch to turn off the individual channel's output to all Buses and the direct output. The LED indicator associated with the mute switch shall be yellow, and shall be lighted when the channel is muted. 15. I/O CHANNEL ASSIGNMENT SWITCHES. Each inline input/output channel shall be fitted with five routing switches, allowing the channel's output to be routed to any combination of subgroup and/or main L/R Buses, in stereo pairs, or to a combination of single Buses (odd OR even) in conjunction with the channel's pan control. 16. MASTER SECTION SUBMASTERS. The audio mixer's master section shall include faders, routing, solo switching, metering, insert sends with insert returns (patching), and tape outputs for each of the 8 submasters. Overall subgroup level control shall be provided by a 100mm fader that incorporates a complex precision resistive network to deliver true logarithmic attenuation, down to -100dB. Submaster signal routing shall be governed by a mono assign switch that sends the submaster output to both the left and right main outputs (single assign switch must be "in" to activate mono switch), and/or by a single Bus assign switch that routes the submaster to only the left output (odd numbered) or to only the right output (even numbered). Each submaster shall be equipped with stereo-inplace solo switching that allows the individual submaster 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. Twelve segment LED bargraph meters shall be provided for each submaster, and shall indicate peak levels from -40dBU to +10dBU, with green LED's indicating levels from - 40dBU to 0dBU inclusive, and yellow LED's indicating levels from +2dBU to +10dBU inclusive. Meters reading OdB will reflect an output level of +4dBU or - 10dBV, depending on the position of the Submaster Output Level Switch. Each submaster shall have a low impedance insert send that may be used separately as an output alone, or in conjunction with its associated return for insert channel patching. In addition, each of the eight submasters shall have three submaster outputs via balanced/ unbalanced transformerless 1/4" TRS connectors configured in pairs for use with 16 recording tracks (1/9/17, 2/10/18, 3/11/19, 4/12/20, 5/13/21, 6/14/22, 7/15/23, 8/16/24), and mounted on the rear panel lower apron. Reference operating level for the tape outputs (and tape returns) shall be globally selectable for either -10dBU or +4dBU via two switches: one controls outputs 1/9/17, 2/10/18, 3/11/19 and 4/12/20; the other controls outputs 5/13/21, 6/14/22, 7/15/23, & 8/16/24 (see paragraph 3). 17. MASTER SECTION - L/R MIX. The audio mixer's master section shall include a stereo fader for setting the overall output level delivered via the unbalanced transformerless 1/4" TS connectors in the master section designated main mix L/R, and duplicated on 3-pin balanced XLR connectors on the rear panel lower apron. Overall L/R mix level control shall be provided by a 100mm stereo fader that incorporates a complex precision resistive network to deliver true logarithmic attenuation, down to -100dB. 18. MASTER SECTION - MIX B (MONITOR). The audio mixer's master section shall include a rotary master level control to govern the overall output level and/or mix level of signals on the Mix-B (Monitor) Bus. In addition, a switch associated with the level control shall assign/ unassign Mix-B (Monitor) signals to the main L/R output Buses, but shall have no effect on signals appearing at the Mix-B (Monitor) outputs. Mix-B (Monitor) signals shall be made available to the outside world as a separate group via two 3