www.bassboss.com
©
®
2018 True Lee Loudspeakers, LLC – [email protected] – 512-368-3268 855-8-BASS-70 Toll Free
Page 8
3: CARDIOID SWITCH
Toggle Switch allows selection between NORMAL mode and CARDIOID mode.
With the switch in the NORMAL (up) position, the speaker is in normal operating mode and any number of cabinets can be arrayed side-by-side
facing the same way when they are all in NORMAL mode.
When CARDIOID operation is desired, one or two cabinets must be used in NORMAL mode and at least one cabinet must be placed in CARDIOID
mode and its position reversed relative to the other cabinet(s) The ideal ratio is 2 cabinets in NORMAL with one CARDIOID cabinet between
them vertically or horizontally.
Reduced
NORMAL >>
Audience
Level
<< CARDIOID
Audience
Area
NORMAL >>
Audience
The NORMAL mode cabinet(s) are used with the woofer facing towards the audience. The CARDIOID mode cabinet is rotated with the woofer
away from the audience and the CARDIOID SELECT SWITCH in the CARDIOID (down) position.
The cabinet in CARDIOID mode should have the EXO knob at the lowest level, rotated fully counterclockwise.
The EXO setting on the NORMAL mode cabinet(s) can be set to taste but all cabinets in NORMAL mode should be set the same.
Note: When the speaker is in CARDIOID mode, the green PWR LED is disabled because it will be facing the audience.. The speaker will still power up and play.
When only two cabinets are used, the cabinet in CARDIOID mode can be placed on top of the cabinet in NORMAL mode. The cabinet in
CARDIOID mode can also be placed adjacent to the NORMAL mode cabinet, with the NORMAL mode cabinets placed farther from the stage
or area where reduced level is desired. When only 2 cabinets are in use, the CARDIOID mode cabinet GAIN should be reduced by 3dB. The
greatest level reduction occurs on axis with a line drawn from the center of the NORMAL cabinet’s baffle, through the center of the CARDIOID
cabinet’s baffle.
Reduced
Level
<< CARDIOID (-3dB) Audience
Area
NORMAL >>
Audience
Audience
Three-dimensional representation of cardioid output pattern.