Infinity Model Twelve manuale d’uso

Compac t P ower ed Subwoof er M ODEL T WEL VE Owner’ s Guide (120V) Cascade 12 OM 9/21/05 5:03 PM Page 1[...]

ii Cascade Model T welv e Read First! 1. Read these instructions . 2. Keep these instructions . 3. Heed all warnings . 4. F ollow all instr uctions. 5. Do not use this apparatus near w ater . 6. Clean only with a dr y c loth. 7. Do not block any ventilation openings . Install in accordance with the manuf acturer’ s instructions . 8. Do not instal[...]

iii Cascade Model T w elv e T able of Contents ii Important Safety Pr ecautions 1 U npacking the Subwoofer 1 Placement 2 Controls and Connections 3 Connections 4 Operation 5 Room Adaptiv e Bass Optimization System ™ (R.A.B.O .S. ™ ) 6 Contents of the R.A.B.O .S. T est CD 6 The R.A.B.O .S. Sound-Level Meter (RSLM) 7 Initial System-Lev el Setting[...]

Cascade Model T w elv e 1 Infinity Cascade ™ Model T w elve The Infinity Cascade Model T welve continues Infinity’ s long- standing commitment to accurate sound r eproduction. Our propr ietar y Metal Matrix Diaphra gm ™ (MMD ® ) driv ers, high- powered amplifier and propr ietary Room Adaptive Bass Optimization System ™ (R.A.B.O.S . ™ ), [...]

L ine In L ine Out 150 Max L evel C rossover [ Hz] 50 Min LFE I nput Phase N ormal Off On LFE G reen: On Red: Standby Model Twelve Power 0 1 2 3 4 5 6 7 8 B A 9 2 Cascade Model T w elv e Rear Panel C ONTROLS AND C ONNECTIONS ¡ Power Switch ™ Line-Lev el Outputs £ Line-Lev el Inputs ¢ Power Indicator ∞ Crosso ver Adjustment § Subwoofer Le ve[...]

3 Cascade Model T w elv e C ONNECTIONS If you ha ve a Dolb y* Digit al or DTS ® receiv er/processor w ith a low-fr equency-e ffec ts (LFE) output: • Set Normal/LFE Swi tch to LFE. NOTE: In this case, you do not need to use a Y connector . Simply connect the LFE output on your recei ver/processor to either the left or right input on the subwoof e[...]

4 Cascade Model T w elv e Pow er On P lug your su bw o ofe r ’s AC cord into a wall outlet. Do not use the outlets on the back of the recei ver . Initially set the Subwoofer Le vel (Volume) Contr ol § to the “min” position. T urn on your sub by pr essing the Power Swit ch ¡ o n the rear panel. Au to On/St andby With the P ower Switch ¡ in [...]

5 Cascade Model T welv e I nfinity’ s R.A.B.O.S . is a simple-to-use, yet sophisticated, low-frequency calibr ation system. It is designed to work in c onjunction with the Cascade Model T welve self-amplif ied subwoofer . The subwoofer contains a par ametric equaliz er that you will adjust as indicated by the R.A.B.O .S. test results . Following [...]

6 Cascade Model T w elv e P ower is switched on or off by pr essing the button directly below the bar -graph window . W hen the unit is on, one or more LEDs will always be illuminated. The function of the LEDs is described in the following section. • Power -On/Low Signal: This is indicated by the illumination of any LED on the bar graph. If the s[...]

7 Cascade Model T welv e Init ial System-Lev el Sett ing The following steps will set the pla yback level of the system to the corr ect level f or all tests that follow . T urn the system v olume to minimum. Cue the R.A.B.O .S. T est CD to T rack 2 and press P ause II . This track will pr oduce band-limited pink noise in both the left and right cha[...]

8 Cascade Model T welv e Each of the following tr acks produces a low-fr equency test tone. The range of these tests is fr om 100Hz down to 20Hz. The frequency of each test is announced bef ore it begins. The fir st test is the highest frequency (100Hz); theref ore , you will be marking the template fr om right to left. Each frequency point is list[...]

9 Cascade Model T welv e A t this point, you may simply enter the data you just measured into the R.A.B.O .S. calculator , found on the I nfinity Web site at www .infinitysystems .com. After entering the data, this R.A.B.O.S . wizard will r eturn the corr ect settings for all thr ee R.A.B.O.S. contr ols: ‚ , ⁄ and ¤ . Skip to page 14 and adjus[...]

10 Cascade Model T w elv e Using the Width Select or Read the following instr uctions carefully . The example presented ma y not look like the graph you just created. Focus on the concepts and techniques pr esented. Specific cases will be discussed later . Y ou will use the Measurement T emplate just completed and the Width Selector to determine th[...]

11 Cascade Model T welv e T he pointer on the slider will indicate the cor rect width setting. Enter this number in the Width field of the Measur ement T emplate . In our example, the width is 12.5%. It is not realistic to expect a perf ect fit. Acoustic measurements encompass the beha vior of not only the speakers but of the room and its contents [...]

12 Cascade Model T w elv e Example 2. T wo Response Peaks: Character ized by two r esponse peaks, approximately equal in amplitude and width. This requir es that you make a choice between the two peaks. In situations like this, the higher frequency peak will alwa ys be more audible and objectionable . Response peaks below 45Hz, unless extreme, can [...]

13 Cascade Model T welv e 1 . Select a new test position: Cue the test track corr esponding to the center frequency of the dip . In the fir st example in Figur e 18, y ou would play T rack 13 (56Hz). Press P lay › . Y ou will see a reading v ery close to what you had before . Now , slowly mov e the R SLM around the ar ea, if possible r emaining w[...]

14 Cascade Model T w elv e 1. Select a new test position: Cue the test track corr esponding to the center frequency of the dip . In the example in Figur e 19 you w ould play T racks 14 (52Hz) and 18 (40Hz). Press P lay › . Yo u will see a reading v ery close to what you had before . Now , slowly mov e the RSLM around the area, if possible remaini[...]

15 Cascade Model T welv e I f using more than one subwoof er , alw ays adjust both subwoof ers together . Adjust the controls as indicated by the Measurement T emplate . Each value shown in the table is r epresented by detents in the R.A.B.O .S. controls . Simply count the number of detents necessary , indicated by the results of your R.A.B.O .S. T[...]

16 Cascade Model T w elv e M AINTENANCE AND S ERVICE The enclosur e and grille may be cleaned using a soft c loth to remo ve fingerprints or to wipe off dust. A ll wiring connections should be inspected and c leaned or remade per iodically. The fr equency of maintenance depends on the metals inv olved in the connections, atmospheric conditions , a [...]

17 Cascade Model T welv e Frequency Width Frequency Width Hz dB % Hz dB % Cascade 12 OM 9/21/05 5:03 PM Page 20[...]

18 Cascade Model T w elv e Frequency Width Frequency Width Hz dB % Hz dB % Cascade 12 OM 9/21/05 5:03 PM Page 21[...]

19 Cascade Model T w elv e Cascade Model T welv e F requency Response 3 2Hz – 150Hz (–3dB) 28Hz – 150Hz (–6dB) Maximum Amplifier Output 300 watts RMS (20Hz – 150Hz, with no more than 0.1% THD) Crossov er F requencies 50Hz – 150Hz, continuously variable or LFE Driver 10" (250mm) MMD ® Dual 10" (250mm) MMD passi ve radiators Di[...]

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Infinity Systems, 250 Crossways P ark Driv e, Woodbury , NY 11797 USA 516.674.4INF (4463) www .inf initysystems .com * T r ademar k of Dolby Labor ator ies. DTS is a registered trademar k of DTS, Inc. Infinity , Har man International and MMD are r egistered trademar ks, and Metal Matrix Diaphragm, Room Adaptive Bass Optimization System (R.A.B.O.S .[...]