User manual SONY SA-W305

[. . . ] Refer to these numbers whenever you call upon your Sony dealer regarding this product. Before operating this woofer, please read this manual thoroughly and retain it for future reference. Check that you received the following items: · Since the human ear cannot detect the direction and position where the bass sound being reproduced by a woofer (below 150 Hz) comes from, you can install the woofer wherever you like in your room. To obtain a better bass reproduction, we recommend you to install the woofer on a solid floor where the resonance is unlikely to occur. [. . . ] Connecting to an amplifier with a special jack for a super woofer If your amplifier has a special jack for a super woofer (like a MONO OUT jack, MIX OUT jack, SUB WOOFER jack or SUPER WOOFER jack), connect the LINE IN jack of the woofer to one of those jacks. When using this woofer for both left (L) and right (R) channels Hookups Connect the MONO OUT jack of your amplifier to the LINE IN jack of the woofer with the supplied audio connecting cord. Connect the AC power cord from the woofer and from your amplifier to a wall outlet. If the output level of your amplifier is not large enough, the sound may not be loud enough. ) or the equalizer output to a high level or input sinewaves of 20 Hz to 50 Hz recorded on a commerciallyavailable test disc or special sound (bass sound of electronic musical instrument, pop noise of analog disc turntable, sound with abnormally enhanced bass, etc. These actions may cause damage to the speakers. When a special disc containing abnormally enhanced bass is played, noise may be output in addition to the original sound. The woofer turns on and the POWER indicator lights up in green. Adjust the VOLUME so that sound from front speakers is not distorted. To turn off the power press POWER to release the switch. If you hear noise when you turn off the woofer, turn down the LEVEL of the woofer, or turn off the amplifier before turning off the woofer. The sub woofer output signal (DOLBY digital (AC-3) signal) of the digital surround processor sold singularly is set 10 dB higher by Dolby laboratories Licensing Corporation. You can adjust the sound of the woofer to suit the sound of your front speakers. Reinforcing the bass sound gives you a greater sense of atmosphere. If the sound distorts when you turn on the bass reinforcement from your amplifier (such as, DBFB, GROOVE, the graphic equalizer, etc. Turn the CUT OFF FREQ control, depending on the reproduction 80Hz frequencies of your front speakers. 50Hz 4 Typical large sized speakers: more than 25 cm dia. To make the most of the low level converter function of Dolby digital, turn the CUT OFF FREQ as high as possible when playing back the Dolby digital (AC-3). Selecting NORMAL or REVERSE with the PHASE button reverses the polarity and may provide better bass reproduction in certain listening environments (depending on the type of front speakers, the position of the woofer and the adjustment of the cut-off frequency). It may also change the expanse and tightness of the sound, and effect the feeling of the sound field. [. . . ] Do not install the woofer near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, excessive dust, mechanical vibration or shock. ⷠGood ventilation is essential to prevent internal heat build-up in the woofer. place the woofer in a location with adequate air circulation. Do not place the woofer on a soft surface or too close to a wall as this may obstruct the ventilation hole on the back. [. . . ]