user manual
NuQ series
System Requirements
Passive loudspeakers and switchable loudspeakers used in passive mode
NuQ series passive loudspeaker enclosures require only one amplifier channel for correct operation, the frequency splitting between the low frequency driver and the high frequency driver being accomplished by the internal passive crossover network built into each enclosure.
If subwoofer enclosures are used as part of a bi-amplified system in conjunction with NuQ series 2-way enclosures to extend low frequency response, additional amplifier channels and external electronic crossovers will be required. The Turbosound LMS-D6 and LMS-4 digital loudspeaker management systems are recommended for this purpose, as well as other professional quality digital controllers.
Switchable active/passive loudspeaker enclosures when used in bi-amped mode require the use of one amplifier channel per frequency band for correct operation. Frequency splitting between the low frequency driver and the high frequency driver is accomplished by a Turbosound LMS-D2X digital loudspeaker management system.
Dedicated subwoofer enclosures require an additional amplifier channel when used as part of an extended frequency system. Frequency splitting between it and a NuQ series mid-high enclosure is accomplished by an external crossover. Turbosound LMS series digital loudspeaker management systems are recommended for this purpose.
NuQ manual page 13