Question about Jensen JPA1150M Car Audio Amplifier
I just bought a Jensen JPA1150M amplifier. I chose this one because of the specified frequency range (10Hz -100KHz).
I want to amplify an Amplitude Modulated signal in the 70KHz range. (Of course I'll have to demodulate this signal before I can hear it.)
#1 Should I be able to amplifiy it OK???
At this point I am just trying to get the amp to work on the bench using a FULLY charged Auto battery. I have the following connections and settings. 1 large 2 ohm Speaker (right channel), + Power,
Ground, REM (on back) connected to + Power, X-OVER at FULL, RCA connector into Right Low Input, 2 Volts Peak to Peak, 2 KHz, going into Right Low Input.
#2 What is happening is that the POWER and STAND-BY lights alternate. POWER on, I have output, STANDY-BY nothing. By truning the LEVEL down low I can keep it on. Does that sound right???
#3 Would I be better off with my input going into the high level input??? Any Suggestions or help is appreciated. Don
You stated that you were using a 2 ohm speaker. If you have it bridged on that same speaker, it should go into protect.
Generally, it's not necessary to connect a jumper between the channels of an amp. If the bridging wires are L+ and R-, it shouldn't be causing any problem.
Have you looked at the signal on an oscilloscope to determine if you're driving the amp into hard clipping? If you are, that may be causing the amp to go into protection.
Posted on Mar 29, 2008
It shouldn't be going into protection mode. Have you tried doing this on the other channel?
The high level input is for speaker level signal (as those you'd have if you were driving the amp from an OEM head unit).
Posted on Mar 29, 2008
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Posted on Jan 02, 2017
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