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A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
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SCANNING OF HIGH QUALITY
VERY, VERY HIGH VELOCITY DOWNLOAD
VERY GOOD PRICE,
TRUE SATISFIED, THANKS
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Genuine Toshiba owner's manual. Couldn't really ask for more. And written in understandable English in contrast to a few recent experiences I have had with manuals for other equipment other than Toshiba but made in China and written in "Chinglish"!
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I purchased a vintage Sony mixer off eBay and within the hour was able to locate and purchase the manual for it.I mean really,where else can you find a manual for a product made in 1983!? It was easy to find and purchase/download the manual I needed.I will use this site again for other equipment I have! Great site!
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manual de usuario perfecto y completo de buena calidad de impresion y muy detallado ideal !
BETA TWELVE.DVC 2-OHM (PARALLEL) WIRING
Beta Twelve.dvc
(rear view)
BETA TWELVE.DVC DUAL-SUBWOOFER WIRING
(Dual) Beta Twelve.dvc
(rear view)
Twelve.dvc 12" Subwoofer
INSTRUCTIONS
CAR AUDIO
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From Amp Output
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Thank you for purchasing an Infinity Beta Twelve.dvc 12" Subwoofer. You�ve selected a premium product that offers superior performance and advanced materials, resulting from over 25 years of loudspeaker design. This Infinity product is made with our ongoing dedication to create the best consumer audio products possible. As a result, you can expect your new Beta Subwoofer to provide you with many years of listening enjoyment.
� Locate and note all fuel lines, hydraulic brake lines, and electrical wiring. Use extreme caution when cutting or drilling in and around these areas. � Check clearances on both sides of a planned mounting surface before drilling any holes or installing any screws.
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METHOD #1 � +
THIELE-SMALL PARAMETERS
FREE-AIR RESONANCE: COMPLIANCE VOLUME: MECHANICAL Q: ELECTRICAL Q: TOTAL Q: MAXIMUM EXCURSION: VOICE COIL DC RESISTANCE: FS (HZ) VAS (FT3) VAS (LITERS) Q
MS
(Dual) Beta Twelve.dvc
(rear view)
Refer to Subwoofer Enclosure Trade-Offs (on the inside pages) for help in selecting an enclosure type and alignment. Also, review the wiring diagrams (on
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22.00 5.60 158.00 7.88 0.25 0.25
BETA TWELVE.DVC 8-OHM (SERIES) WIRING
Beta Twelve.dvc
(rear view)
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From Amp Output
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the back page) on how to connect the subwoofer for 2-ohm, 8-ohm, and summed-mono applications. Each Infinity Beta Twelve.dvc 12" Dual Voice-Coil Subwoofer is covered by our limited parts and labor warranty (see the enclosed warranty card). Keep your original dated bill of sale in case warranty service is required. IMPORTANT: Installation of automotive stereo components can require extensive experience in dealing with a variety of electrical, and mechanical procedures, including subwoofer box building. Although these instructions explain how to install a Beta Subwoofer in a general sense, they do not show the exact installation methods for your particular vehicle. If you do not have the experience, do not attempt the installation yourself; instead ask your Authorized Infinity Car Audio Dealer about professional installation options.
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QES QTS X
MAX
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(IN)
0.39 10.00 2.80
XMAX (MM) RE (OHMS)
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IMPORTANT: When connecting two Beta Twelve.dvc subwoofers together, use Method #1 to create a net 4-ohm impedance. NEVER USE METHOD #2, since most amplifiers cannot fully control driver movement in this configuration.
SPECIFICATIONS
DIAMETER: POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: DIMENSIONS: 12" (304.8 MM) 275 WRMS PER VOICE COIL 20 ~ 400 HZ 4 OHMS PER VOICE COIL SENSITIVITY (2.83 V @ 1 M): 94 dB
BETA TWELVE.DVC SUMMED-MONO WIRING
Beta Twelve.dvc
(rear view)
DECLARATION OF CONFORMITY
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We, Infinity Systems A/S Kongevejen 194B DK-3460 Birkerød DENMARK declare in own responsibility, that the Beta Twelve.dvc subwoofer is in compliance with technical standards EN 50 081-1/1992 and EN 50 082-1/3.1995
PRECAUTIONS
� Always wear protective eyewear when using tools. � Turn off all audio systems and other electrical devices before starting the installation. � Disconnect the (�) negative lead from your vehicle�s battery.
Steen Michaelsen Infinity Systems A/S Birkerød. DENMARK. 4/96
mounting depth 5.875" (149.23 mm)
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cutout diameter 11.38" (289.05 mm) outer diameter 12.95" (328.93 mm)
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Infinity Systems, Inc. � 20630 Nordhoff Street Chatsworth, CA 91311, USA � VOICE (818) 407- 0228 � FAX (818) 709 -9486
Printed In Japan
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Infinity Systems, Inc. � 20630 Nordhoff Street Chatsworth, CA 91311, USA � VOICE (818) 407- 0228 � FAX (818) 709 -9486
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