Definitive Technology VEIB, STS owner manual Powering the Active Subwoofer

red (+) terminal of your right surround loudspeaker and the black (-) terminal of the right surround channel of your receiver or amplifier to the black (-) terminal of your right surround loudspeaker. Most speaker wire has some indicator (such as color-coding, ribbing or writing) on one of the two conductors to help you maintain consistency. It is essential to connect both speakers to the amplifier in the same way (in phase). If you experience a lack of bass, it is likely that one speaker is out of phase with the other and needs to be rewired paying closer attention to connect positive to positive; negative to negative on both channels. Set the receiver’s or processor’s Speaker Set-Up menu as Surround = Large.

Powering the Active Subwoofer

Your Mythos STSs contain a built-in, active powered subwoofer section as well as an electronic crossover and must be plugged into an electrical socket of the appropriate voltage (as indicated on the back of your unit) using the electrical cord which you have attached to the bottom of the speaker. The Mythos STS has a special circuit which automatically turns the powered subwoofer section on when a signal is fed to the loudspeaker and does not require an on-off switch. Please note that if you hear a pop from the speaker when the amp powers up, this is normal. The LED on the back panel will light up when a signal is sensed and the amplifier turns on. After the cessation of a signal, it may take up to an hour for the amplifier to actually turn off. In some instances, because of stray radio signals (RF) in your area, the LEDs may not turn off. However, this is nothing to be concerned about as the amplifiers draw almost no power when they are idling.

Setting Your Speakers’ Low-Frequency Level Control

Your Mythos STSs have bass level controls which allow you to tune the output level of the powered subwoofers to match your room and personal listening preferences. Please note that there are no controls to vary the crossover points or phase because these have been factory calibrated and set to provide perfect blending (a major performance benefit of this innovative product). We suggest beginning with the level control set at approximately 1 o’clock.

Normally the level control of the left speaker will be set the same as the level control of the right speaker. However, these controls can also be set differently on the two speakers in order to allow you to vary the response of left and right speakers to compensate asymmetrical positioning of the speakers in your room (i.e., when one is closer to a side wall or corner, etc.). This is a useful feature which allows you much greater flexibility in loudspeaker placement, as well as the ability to compensate for what could otherwise be difficult placement situations.

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