User manual INFINITY TSS-SUB400O

[. . . ] TSS-4000 TOTAL SPEAKER SOLUTIONS TSS-SUB4000 Owner's Guide (120V) IMPORTANT SAFETY PRECAUTIONS READ FIRST! 12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Unplug this apparatus during lightning storms or when unused for long periods of time. [. . . ] Skip to page 14 and adjust these controls as described, and finish the R. A. B. O. S. If you would like to manually calculate the R. A. B. O. S. settings, simply continue following the instructions from this point. STOP Width The frequency range of the R. A. B. O. S. equalizer may be set from 5% to 50% of an octave in 21 steps. This setting defines how much of the TSS-SUB4000's output will be equalized. What Does a Parametric Equalizer Do? The R. A. B. O. S. system uses one band of parametric equalization for response correction. Parametric equalizers are the most versatile class of filters. The effect an equalizer will have on the signal is dependent on three parameters. Frequency: The equalizer will have maximum effect at one frequency, usually described as the center frequency. Level: This refers to the amount of cut (in dBs) the equalizer is set for. Bandwidth: Defines the range of frequencies over which the equalizer will have an effect. On the TSS-SUB4000, this adjustment is abbreviated as "Width. " Only parametric equalizers allow independent adjustment of all three parameters. These will be explained more fully in the sections that follow. Effect of adjustable width Width is expressed as a percentage of an octave. For example, a width setting of 25% means the equalizer will affect a frequency band of 1/4 of an octave; 1/8 of an octave above and 1/8 of an octave below the center frequency. From any point in the spectrum, one octave above or below that point is always double or half the frequency. Therefore, one octave above 100Hz would be 200Hz. In the section that follows, we will discuss the use of the Width Selector. Completing the Measurement Template Along the bottom of the Measurement Template are three fields where you will enter the equalizer settings needed to complete system optimization. These instructions are based on the example in Figure 12. Use this tutorial to become familiar with the process. Strategies for several other test results will be presented later. After you have completed these three entry fields, you will be ready to perform the adjustments, completing R. A. B. O. S. Frequency The frequency of the R. A. B. O. S. equalizer may be adjusted to any one of nineteen frequencies from 20Hz to 80Hz. This defines where you are going to apply equalization. 9 TSS-SUB4000 Using the Width Selector Read the following instructions carefully. The example presented may not look like the graph you just created. Focus on the concepts and techniques presented. [. . . ] Adjust the controls as indicated by the Measurement Template. Each value shown in the table is represented by detents in the R. A. B. O. S. Simply count the number of detents necessary, indicated by the results of your R. A. B. O. S. Test. Controls Final System Balance Cue Track 51 of the R. A. B. O. S. Test CD. [. . . ]