Qsc-audio CX168 User Manual download pdf (Page 22)

A simple application of the CX168 would be an installation with 4 rooms of coverage; each room to be provided with a stereo

audio feed. All speakers are 4 ohm or greater impedance and have a frequency response rated down to 45 Hz., making them

suitable for the 70 Hz. low frequency setting. Clip limiting will be used with these full-range speakers. Operating mode of all four

channel pairs will be set to ‘stereo’ because the audio inputs are stereo and a stereo result is desired in each room.

Input connections can vary too much to provide meaningful examples. For this example, assume that each input has its own

discrete signal provided at the terminal block input connectors.

Routing would make sense if kept in room number order:

Room #1: Fed by channel pair #1 (Ch.1&2)

Room #2: Fed by channel pair #2 (Ch.3&4)

Room #3: Fed by channel pair #3 (Ch.5&6)

Room #4: Fed by channel pair #4 (Ch.7&8)

MODE switch configuration:

Ch.1/ Ch.2 mode switch: Clip Limiters ON

Low Frequency Filter ON

Low Frequency Setting 70 Hz.

Mode: stereo

Ch.3/Ch.4 mode switch: same as first mode switch

Ch.5/Ch.6 mode switch: same as first mode switch

Ch.7/Ch.8 mode switch: same as first mode switch

Four Room Stereo Feed

APPLICATIONS: TYPICAL APPLICATION EXAMPLES

Two discrete 3-way (tri-amp) cabinets are to be connected to the CX168 along with an 8 ohm subwoofer cabinet.

The subwoofer will require the most amount of power and therefore will be driven by two channels bridged into one. Its impedance

meets the minimum requirement for bridged output. All other drivers are 4 ohms or greater and meet the single channel minimum

impedance requirement. Each of the tri-amp cabinets will be driven with three discrete channels (totaling 6 channels). The total

required channel count is 8; the CX168 is the perfect tool for the job.

Tri-Amp’d Stereo Cabinets with Subwoofer Driven by Bridged Channel Pair (next page)

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Qsc-audio CX168 User Manual Page 22