JBL GT1000 user manual

Summary of the content on the page No. 1

GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 1
®
GRAND TOURING SERIES
Automotive Subwoofers
GT800, GT800d, GT1000, GT1000d, GT1200, GT1200d, GT1500, GT1500d Owner’s Manual
GENUINE JBL

Summary of the content on the page No. 2

GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 2 Enclosure Calculations and Building Boxes Use the recommended box Thank you for choosing a designs on the enclosed data JBL GT Series subwoofer. GT sheet or look for them on our Series subwoofers are designed Your Car and Bass Web site at www.jbl.com. Choose to suit a broad range of mobile cabinet dimensions to fit your Reproduction audio applications and can be vehicle, but do not change the Depending on the size of the vehi- used in a wide va

Summary of the content on the page No. 3

GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 3 Specifications GT Speakers Specifications: GT800 GT800d GT1000 GT1000d Configuration 8" woofer 8" woofer, 10" woofer 10" woofer, dual voice coil dual voice coil Recommended power amplifier range 18W – 200W 18W – 200W 18W – 260W 18W – 260W Sensitivity (@ 2.83 volt/1 meter) 93dB 93dB 94dB 94dB Frequency response 35Hz – 5kHz 35Hz – 5kHz 30Hz – 3.5kHz 30Hz – 3.5kHz Mounting Depth Top mount 3-13/16" (97mm) 3-13/16" (97mm) 5-1/8" (131mm) 5-1/8" (131mm)

Summary of the content on the page No. 4

GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 4 Sealed enclosures exert the most adequate woofer control when dri- control over the motion of a sub- ven below the port tuning range, woofer because the air acts like 2. Seal all joints with glue and a spring against the motion of so proper design is important. A screws; do not use nails. We the woofer cone. Larger boxes fourth-order bandpass box will recommend “deck” or “zip” screws allow for more excursion (cone have the lowest overall con

Summary of the content on the page No. 5

GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 5 Power-Handling Limitations The power-handling capability of • Voice-coil overheating and burn- any woofer is related to both its ing due to over-excursion is often ability to dissipate heat and the caused by overdriving an ampli- maximum excursion limits of its subwoofer will likely be half its fier into “clipping.” A severely cone. Once the speaker’s voice rated power in this application. clipped signal, or squarewave, coil moves outside the m

Summary of the content on the page No. 6

G N 5 I 0 T A Y GTSubwoofers Owner's Manual 7/14/98 2:19 PM Page 6 Declaration of Conformity We, JBL Europe A/S Kongevejen 194B DK-3460 Birkerød DENMARK declare in own responsibility, that the products described in this owner’s manual are in compliance with technical standards: EN 50 081-1/1992 EN 50 082-1/3.1995 Steen Michaelsen JBL Europe A/S Birkerød. DENMARK. 2/98 JBL Consumer Products 250 Crossways Park Drive Woodbury, NY 11797 8500 Balboa Blvd. Northridge, CA 91329 800-336-4JBL (4525)