Infinity 1211a Instructions Manual Download Page 1

Thank you

for purchasing an Infinity

®

Reference 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 read the enclosed warranty information card.

reference series

311a,611a,
1211a,7521a,
7541a,5761a

instructions

Summary of Contents for 1211a

Page 1: ...fier In order that we may better serve you should you require warranty service for your new amplifier please retain your original purchase receipt and read the enclosed warranty information card refer...

Page 2: ...rence amplifiers are capable of delivering high power levels and require a reliable connection to the vehicle s electrical system in order to perform optimally See Figure 1 for connection location Ple...

Page 3: ...nd input connections NOTE Minimum speaker load is 2 ohms APPLICATIONS 311a 611a AND 1211a The 7521a amplifier can be set up for stereo or bridged mono operation as shown in Figures 5 and 6 NOTE For si...

Page 4: ...r stereo operation is 2 ohms Minimum speaker impedance for bridged operation is 4 ohms NOTE Bass Boost only affects rear channels APPLICATIONS 7541a Figure 7 7541a amplifier in 4 channel stereo operat...

Page 5: ...ote and input connections NOTE Minimum speaker impedance for stereo operation is 2 ohms Minimum speaker impedance for bridged operation is 4 ohms APPLICATIONS 5761a Figure 10 6 Channel operation 5761a...

Page 6: ...Reconnect the negative lead to the vehi cle s battery Apply power to the audio system and play a dynamic music track 3 On the source unit increase the volume control to 3 4 volume Slowly increase the...

Page 7: ...l DBO control ranges INSTALLATION AND SETUP CONT 9 6 3 0 12 20 80 Freq Hz dB DBO HP FREQ Control adjusts cut off frequency 6 0 6 12 12 20 80 Freq Hz dB DBO BOOST Control adjusts boost amount at cut of...

Page 8: ...nse 17Hz 302Hz 3dB Maximum input signal 5 7V Maximum sensitivity 75mV Output regulation 132dB at 4 ohms Dimensions L x W x H 12 x 18 1 2 x 2 11 16 Fuse rating 3 x 40A 7521a 97W RMS x 2 channels at 4 o...

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