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Infinity ALPHA 1200S manual

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Table of contents for the manual

  • Page 1

    ® Owner’ s Guide • Infini ty Alpha 1200s P OWERED S UBWOOFER[...]

  • Page 2

    ii INFINITY ALPHA 1200s Read First! 1. Read Instruct ions. All the safety and oper ating instructions should be r ead befor e the product is operated. 2. Ret ain Instruct ions. T he safety and operating instructions should be r etained for futur e ref erence . 3. Heed Warnings. All war nings on the product and in the operating instr uctions should [...]

  • Page 3

    iii INFINITY ALPHA 1200 S ii Important Safety Pr ecautions 1 Unpacking the Subwoofer 1 Placement 2 Controls and Connections 3 Connections 4 Operation 5 Bass Optimization System™ 6 Maintenance and Service 7 Specifications T able of Cont ents I NFINITY A LPHA 1200 S O WNER ’ S G UIDE[...]

  • Page 4

    INFINITY ALPHA 1200 S 1 Infinity Alpha Series T he Infinity Alpha Series of loudspeakers continues Infinity’ s long-standing commitment to accurate sound r eproduction. Our patented Ceramic Metal Matr ix Diaphragm™ (C .M.M.D. ™) dri ver s and propr ietar y Bass Optimization System, ™ along with precision div iding networks and rigid, well-b[...]

  • Page 5

    2 INFINITY ALPHA 1200 S Rear Panel C ONTROLS AND C ONNECTIONS POWER AC 120V ~ 60HZ 500W OFF ON ® BASS OPTIMIZATION SYSTEM 20 -14.1 0 80 FREQUENCY LEVEL OFF GREEN: ON RED: STANDBY PHASE LINE LEVEL IN HIGH LEVEL IN HIGH LEVEL OUT Infinity Systems, Inc. Northridge, CA USA R L + _ R L R L 180 0 50 150 CROSSOVER MIN MAX GAIN POWER ON 4.5 49.5 WIDTH CAU[...]

  • Page 6

    3 INFINITY ALPHA 1200 S If your r eceiver/amplifier does no t hav e subwoofer outpu ts for the le ft and right channels or an LFE outpu t: C ONNECTIONS If your r eceiver/processor has subwoof er outpu ts for the le ft and right channels: • Set Low-P ass Filt er to “On. ” NOTE: Some receiv ers ha ve a single subwoofer output (do not confuse th[...]

  • Page 7

    4 INFINITY ALPHA 1200 S Pow er On Plug your subwoofer’ s A C co r d into a wall outlet. Do not use the outlets on the back of the recei ver . Initially set the Subwoofer Gain (V olume) Control  to the “min” position. Tu rn on your sub by pr essing the Power Switch  on the rear panel. Au to On/St andby W ith the P ower Switch  in the [...]

  • Page 8

    5 INFINITY ALPHA 1200 S Infinity’ s Bass Optimization System is a simple-to-use, yet sophisticated, low-fr equency calibration system. Each Interlude subwoofer contains a par ametric equalizer that you can adjust f ollowing the dir ections below. By following these instructions , you can impro ve the sound of your system. The Bass Optimiza tion S[...]

  • Page 9

    6 INFINITY ALPHA 1200 S plays the tones fr om the test CD and records the r elative output lev el of each test tone, using the sound-le vel meter , on the pro vided measurement template . After all the tones are complete, the template contains a response curv e for the frequencies below 100Hz. The user simply notes the frequency of the lar gest bas[...]

  • Page 10

    7 INFINITY ALPHA 1200 S Infinity Alpha 1200s Fr equency Response 28Hz – 150Hz (±3dB) Maximum Amplifier Output 500 watts RMS (20Hz – 150Hz with no more than 0.1% THD) Crossov er F requencies 50Hz – 150Hz, 24dB/octave , continuously variable Driver 12" (305mm) C .M.M.D. Dimensions (H x W x D) 17-1/2" x 17-1/4" x 18-1/4" (44[...]

  • Page 11

    8 INFINITY ALPHA 1200 S N O TES[...]

  • Page 12

    ® © 2002 Harman International Industries , Incorpor ated • Infinity Systems, Inc., 250 Crosswa ys Park Dri ve , Woodbury , NY 11797 USA 800.553.3332 (USA only) www .infinitysystems.com *T rademark of Dolby Laboratories. DTS is a registered trademar k of Digital Theater Systems, Inc. Infinity is a register ed trademark, and Ceramic Metal Matrix [...]