APPLICATIONS: TYPICAL APPLICATION EXAMPLES

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

Routing is a function of ‘easiest wiring’ order and is:

LF Driver Left:

Ch. 4

Mid Driver Left

Ch. 3

HF Driver Left

Ch. 2

HF Driver Right

Ch. 1

Mid Driver Right

Ch. 5

LF Driver Right

Ch. 6

Subwoofer

Bridge Ch. 7 & 8

MODE switch configuration:

 

Ch.1/Ch.2 Mode:

Stereo

Ch.1 Clip Limiter:

ON

Ch.1 LF Filter:

OFF

Ch. 2 Clip Limiter

ON

Ch. 2 LF filter

OFF

Ch.3/Ch.4 Mode:

Stereo

Ch. 3 Clip Limiter

ON

Ch.3 LF Filter:

OFF

Ch. 4 Clip Limiter

OFF

Ch. 4 LF filter

ON

Ch. 4 LF frequency

70 Hertz

Ch. 5/Ch. 6 Mode:

Stereo

Ch. 5 Clip Limiter

ON

Ch.5 LF Filter:

OFF

Ch. 6 Clip Limiter

OFF

Ch. 6 LF filter

ON

Ch. 6 LF frequency

70 Hertz

Ch. 7/Ch. 8 Mode

Bridged

Ch. 7 Clip Limiter

OFF

Ch. 7 LF Filter

OFF

Ch. 8 Clip Limiter

no effect in bridge

Ch. 8 LF Filter

no effect in bridge

Channels 1 through 6 are configured for ‘stereo’ mode because all channels are completely separate from one another. Channels 7 and 8 are bridged to combine their power to drive the subwoofer (sub’s are the most inefficient driver and therefore require the largest portion of the system power).

Clip limiters are used on the mid range drivers and the HF drivers because they are the most fragile and are damaged easily by clipping events. The LF drivers and the sub’s are rugged enough to handle even prolonged clipping events without damage and thus no clip limiting is used.

Low frequency filtering is used only on the LF drivers. The HF and mid range drivers have filtering before the amplifier and need no filtering from the CX168. The subwoofer cabinet can handle the low frequencies without problem, so no filtering for them. The LF drivers response specification will dictate at what frequency (33 or 70 Hz.) the low frequency filter is set for.

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