Kenwood KAC-526X System examples, ■Tri-mode, Coil (L):, ●Example:, Switch setting, Switch setting, Switch setting, Switch setting, ●Principle of Tri-mode

System examples

■Full-range 2-channel systemSwitch setting

FILTER	OPERATION	CENTER UNIT	L	L
OFF LPF	STEREO MONO(Lch)			R
			R

Left speaker

Right speaker

■High-power full-range 2-channel system

Switch setting		L	L	L	Left speaker (Bridged)
	OPERATION
FILTER		CENTER UNIT	R	R
OFF LPF	STEREO MONO(Lch)
		R	L	L	Right speaker (Bridged)
			R	R

■Full-range 2-channel + Subwoofer system

Switch setting

FILTER	OPERATION	CENTER UNIT
OFF LPF	STEREO MONO(Lch)

L	L
R	R

Left speaker Right speaker

Subwoofer (L + R) (Bridged)

■Tri-mode

Switch setting

FILTER	OPERATION				C
				L	L
OFF LPF	STEREO	MONO(Lch)	CENTER UNIT
				R	R
					C

	L
High	Subwoofer
	(L + R)
pass
	(Bridged)

●Principle of Tri-mode

Method of frequency band division using a coil and capacitor•••in case of 6dB/oct. slope

		Crossover Frequency	Coil (L): Passes low frequencies and blocks high
0 dB				frequencies. (Low pass)
			Capacitor (C): Passes high frequencies and blocks low
-3 dB
	L		159000		frequencies. (High pass)
C
			C=		(µF)	fc=Cut of Frequency (Hz)
				fc x R
		Frequency	L=	159 x R	(mH)	R=Speaker Impedance (Ω )

●Example:

fc

When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms.

Prepare commercially-available coil and capacitor with the closest ratings to the results calculated from the formula above. The capacitor rating should be as close as possible to 331.25 (µF) and the coil rating should be as close as possible to 5.3 (mH).

2CAUTION

If you wish to bridge-connect a speaker, the speaker impedance must be no less than 4 ohms. Connecting a speaker with an impedance lower than 4 ohms may damage the unit.

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