Velodyne Acoustics VA-907.2 Interconnect cables, Placement, Phase adjustment, Auto turn on switch

Figure 2: Installation using speaker-level (from amplifier) inputs

					POWER
VOLUME	LOW-PASS
	CROSSOVER
					CAUTION!
FROM AMPLIFIER		TO SPEAKERS			Serial # Label
					MADE IN USA
RIGHT	LEFT	RIGHT	LEFT	LEFT
					~
				RIGHT
			IN	OUT

MAIN OUTPUTS (speaker-level)

INTEGRATED AMP / RECEIVER

SATELLITE SPEAKERS

Interconnect cables

When installing your VA-907.2 using the line-level inputs/outputs, you should use standard shielded phono cables. Always keep the lines as short as practical to minimize noise.

When using the speaker-level inputs/outputs, use the same quality speaker cable to your subwoofer as you run to your satellites.

Placement

True subwoofers operate at extremely low frequencies which are primarily omnidirectional. While it is recommended that the sub- woofer be placed on the same plane as the satellite speakers, room and system conditions often dictate otherwise. Keep in mind that frequency response and output levels can be drastically influ-

You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the main speakers in your system. If your main speakers are smaller units with limited low frequency output, you may wish to choose a higher frequency (such as 100-120 Hz) than you would with larger speakers which have greater low frequency output. With larger speakers, you might start with this control set lower, such as 80 Hz.

A bypass switch is also provided if you wish to use an external crossover. If you are not using an external crossover, we recom- mend that you use the one provided within the unit for optimum performance.

Phase adjustment

This control allows you the ability to compensate for having the subwoofer in a different location than the main speakers. Ideally, you will have the sound from the subwoofer reach the listening position the same time as the sound from the main speakers. However, if the distance from the listening position to the subwoofer and the distance from listening position to the main speakers differs, the sound from each will reach your ears at a different time.

This control allows the signal to be delayed 180 degrees so the output of the subwoofer will blend in to that of your main speakers without any cancellation.

Auto turn on switch

The auto turn on switch allows the user to bypass the auto turn on function if desired. When set in the "auto" mode with main power on, the VA-907.2 will turn itself on when an input signal is present. If no signal is present, after several minutes the unit will shut itself off. When set in the "on" mode, the auto turn on/off function is bypassed and the unit will be on whenever the main power switch is on.

Power switch

The master power switch is located on the right half of the unit. This rocker style switch is the main on/off for the unit. This switch should be set to position 1 for on (up), 0 for off (down).

continued. . .

7 ☞ 4 ☞