SpeakerCraft BassX-W10 owner manual Amplifier Operation

BassX-W10 Owner’s Manual Page 9

3. Amplifier Operation

Please use Diagrams 2 & 3 to familiarize yourself with the front and rear panels of the BBXW10.

CAUTION: Please read all the following instructions, otherwise damage may be caused to your system.

a. Protection Circuitry

•If the “Protection” circuit in the amplifier is activated, it indicates one of the following situations has occurred:

i.The amplifier detects that the subwoofer is in danger of overheating and has temporarily shut down to protect the woofer. The amplifier will return to “Active” without any intervention necessary.

ii.A fault in the wiring, the speaker, or the amplifier. If the amplifier remains off, turn the power button off and then on. If the amplifier returns to the protection mode, turn the amplifier off and refer to the troubleshooting section of this manual.

b. Front Panel Controls

i.Volume Control

Use this to match the output of the subwoofer to that of the main speakers in the system. We recommend that you play a variety of material before selecting a setting. Start with the control in the “Off” position (completely counterclockwise) and slowly turn it up. NOTE: Turning the volume up slowly will prevent possible damage to the woofer from the system being run too “hot”. Very little movement of the knob is needed. CAUTION: If a popping sound (clipping) is audible through the subwoofer, it is being over driven, reduce the volume of the amplifier, or speaker damage may occur!

c. Rear Panel Controls

•The following controls allow you to blend the sound wave output of the BassX-W10 to the output of the main speak- ers in your system.

i.Power Switch

The switch marked “Power” on the rear panel of the amplifier will turn off all amplifier circuitry and override the auto sense mode in the off position. NOTE: See paragraph v., below, before turning on the amplifier.

ii.Low Frequency (Low Pass) Crossover

Use this control to adjust the upper frequency limit of the BassX-W10. The purpose is to control the overlap of the BassX-W10’s upper frequencies and the main speaker’s lower frequencies. If the you are using the built-in high frequency (High Pass) crossover by connecting speakers to the speaker output connectors this control will not affect the fixed 75Hz setting.

iii.Bass Boost Control

This control allows you to increase bass response between 50 and 100Hz for certain types of audio that lacks in bass, such as old recordings etc.

vi.Polarity Control

This control allows you to match the arrival times of the sound waves of the BassX-W10 and the main speak- ers to your listening area. While the system is playing, flip the switch to the 180º and back to 0º until the bass sounds louder or less boomy. Depending on placement and room acoustics, this control may or may not have any affect.

v. Volume Limit Control

Use this control to adjust the maximum volume setting for your BassX-W10 system. With the Volume Limit con- trol and front mounted volume control turned all the way down (counterclockwise), turn on the subwoofer and start playing audio through your system. Turn the system up to the highest comfortable level – WITHOUT DISTORTION. Now turn up the sub woofer volume on the front panel of the BBXW10 subwoofer amplifier all the way. No bass should play. Next SLOWLY turn up the volume limit control until the subwoofer is playing at its loudest level WITHOUT DISTORTION. Return levels to normal. Now anyone can safely turn up the subwoofer all the way without damaging the system.