Instruction/ maintenance manual of the product GTO755.6 JBL
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car audio pow er amplifier owner’ s manual THANK Y OU for purchasing a JBL Grand T ouring ® Series amplifier . In order that we may better serve you should you require warranty service for your new amplifier , please retain your original purchase receipt and return the enclosed warranty registration card.
INST ALLA TION 2 W ARNING: Playing loud music in an automobile can hinder your ability to hear traffic and permanently damage your hearing. We recommend listening at low or moderate levels while driving your car . JBL accepts no liability for hearing loss, bodily injury or property damage resulting from the use or misuse of this product.
APPLICA TIONS – GTO301. 1, GTO601. 1 AND GT O1201. 1 The GTO subwoofer amplifiers are single-channel amplifiers. There are two sets of terminals to make it easy to connect multiple woofers. Either set of (+/–) terminals may be used when connecting woofers.
4 APPLICA TIONS – GTO75.4 The GTO75.4 can be set up for stereo 4-channel, 3-channel or bridged 2-channel operation, as shown in Figures 6 through 8 . NOTE: For simplicity , Figures 6 through 8 do not show power , remote and input connections. NOTE: Minimum speaker impedance for stereo operation is 2 ohms.
Subwoofer Rear Front – + + – + – 5 APPLICA TIONS – GTO755.6 The GTO755.6 can be configured for 6-channel, 5-channel or 3-channel operation, as shown in Figures 9 through 11 . INPUT MODE switch: • Use INT (internal mode) to send a signal from the front and rear inputs to the subwoofer .
6 INST ALLA TION AND SETUP SETTING THE CROSSOVER(S) Determine your system plans and set the crossover mode switch accordingly . If you plan to use the GTO75.2 or GTO75.4 to drive full-range speakers, set the crossover mode to FLA T and skip to “Setting Input Sensitivity .
7 INST ALLA TION AND SETUP T o Neon Power Supply T o Neon Power Supply Figure 13. Installing neon tubes in a JBL GTO amplifier . TROUBLESHOOTING SYMPTOM LIKEL Y CA USE SOLUTION No audio No voltage at .
GTO301.1 • 204W RMS x 1 channel at 4 ohms and ≤ 1% THD + N • Signal-to-noise ratio: 77dBA (reference 1W into 4 ohms) • 294W RMS x 1 channel at 2 ohms, 14.4V supply and ≤ 1% THD + N • Dynamic power: 320W at 2 ohms • Effective damping factor: 6.
An important point after buying a device JBL GTO755.6 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JBL GTO755.6 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JBL GTO755.6 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JBL GTO755.6 you will learn all the available features of the product, as well as information on its operation. The information that you get JBL GTO755.6 will certainly help you make a decision on the purchase.
If you already are a holder of JBL GTO755.6, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JBL GTO755.6.
However, one of the most important roles played by the user manual is to help in solving problems with JBL GTO755.6. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JBL GTO755.6 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
