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
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Some amps come with extra, power,rem,ground, so you can , power up another Amp Without runing to many wires. , or using a power block.like a parallel, being your 1st Amp your power block, and your remote, ground .
The abbreviations "hpf" and "lpf" stand for High Pass Filter and Low Pass Filter. They do exactly what their names imply. They allow frequencies above or below a specific setting, while blocking or attentunating frequencies below or above the setting. There's also a "band pass filter" which allows frequencies within a specific range below the high setting and above the low setting. Finally there's a "subsonic" filter which blocks inaudible frequencies below the threshold of hearing.
The hpf is generally used in speaker component systems to send the high frequencies to the tweeters. The lpf is normally used with subwoofer systems and is set to send frequencies below the setting to the subwoofer.
While most amps will amplify a wide range of frequencies, they are more efficient when the range is limited depending on their intended use. For example, a typical 2-channel amp might have a frequency response of 20-20KHz. When used to drive a set of normal speakers, you would not use either the lpf or the hpf, but simply let it send all frequencies to the speakers. But when used to drive a subwoofer, and operated in "bridged" mode, the amp can put all of it's amplifying power into frequencies than can be used by a subwoofer if the lpf switch is turned on.
Hope this helps.
well the "turn on" is just that - a relay inside the amplifier that allows the 12V Main to connect with the power supply on the inside of the amp.
hook up the remote turn on wire to a switched ignition source, and your amplifier will turn on.
If you are looking to TEST the amplifier - you can temporarily Jumper the remote terminal and the + terminal to get the amplifier ON - however when you instal it - you will want to put it on a switched power source so it goes on and off with the car.
If you need more help - im here.
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Your battery is probably not able to supply the current needed to power the amp and your alternator is not supplying enough charging current when idling. Check these two and the wiring to the amp. Should be some sort of decent stranded copper wiring able to handle the power consumption of the amp. When you have access to a multimeter do check the voltage at the amps 12 volt power leads and when this is below 12 volt when idling I would suspect wiring and/or alternator/battery.