Blaupunkt MPA 400US manual SYSTEM CONFIGURATION #2, Channel Dual Subwoofer Mode

SYSTEM CONFIGURATION #2
Full-Range	Full-Range
	Subwoofer
Full-Range	Full-Range

2 Channel Dual Subwoofer Mode

		Speakers
+ CH1 –		+ CH2 –		+ CH3 –
+	Bridged		–

CROSSOVER

LOW FLAT HI

SUBWOOFER

OFF ON

The largest improvement in sound quality always comes when adding some kind of subwoofer via a dedicated subwoofer amplifier and electronics crossover. The electronic crossover ensures minimal overlap of the bass response with the mid and high frequencies from the other speakers resulting in a more accurate performance compared to conventional coaxials with additional power.

By installing this amplifier in the stereo mode, you are able to drive two subwoofer speakers and in to low impedance loads (e.g., 2 ohms) without over heating the amplifiers. Also, such an installation more easily supports a standard 2 speaker woofer box that may already be constructed. Since two woofers can play 6 decibels louder than one at a given power (due to acoustical laws of “mutual-coupling”), the resulting sound pressure level is substantial. This is probably the most common use for a conventional two channel amplifier there is.

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