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I have polk 1200.1 mono amp which has both rca input jacks but i could find only one input is working found while trying with one input hope my left input is not working help me with this soon

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Posted on Jan 02, 2017

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SOURCE: Broken RCA / phono jack - where to find new part?

You can buy Panel mount RCA (Phono) jacks at Radioshack, I think a 4 pack is less than 5 bucks, That should take care of your problem.

Good Luck,

Stay Classy

B.

Posted on Apr 01, 2009

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Your Polk Audio subwoofer is a passive sub and your JVC mono output is for connection to a powered sub. If the JVC does not have an amplified output for a passive sub, you'll either need to get an amplified sub, a different receiver, or buy a dedicated mono subwoofer amplifier.

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On the rear of the piano there will be two 1/4" jacks labeled Output Left and Right. One will be labled Mono as well. If you are using a stereo amp, use both, and if a mono amp use just the mono output. If your amp is a guitar type, connect a shielded cable with 1/4" phone jacks such as you'd use with an electric guitar from these jacks to your amplifier. If you are useing a home stereo amp, you will need a cable with 1/4" phone jacks from the piano to RCA phono jacks on the amp end.

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Infinity Subwoofer input signal mystery


Have you tried changing the connector leads? They can become faulty. Powered Subwoofers generally work off one connector from the amp. The Sub is a mono amp basaically. So all it needs is the main imput and an earth. One possibilty is that you have the wrong jack plug. Say a stereo instead of a mono, or the wrong size one!

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I am getting engine noise? i have a mono block amp for my bass and another amp for my mids. How do I hook up the stinger SGN20 ground loop isolator?


It goes between the source and the amplifier , I don't know if it will work with guitar pickups, but no harm in trying. Also designed for stereo, but you could try dual mono I suppose. Not sure if that will work either but here are the instructions. You will need 2 mono female Jack to male RCA and 2 mono female RCA to male Jack adapters, (unless your guitar output is stereo in which case you will need 1 stereo Jack to 2 RCA etc. Good luck, it might work but I don't think it was designed for the use you have in mind. Will you let us know how you get on?

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Where are the amps and how do i by pass them for the stereo


The amps are located inside the radio. Most in-dash receivers that provide for "pre-amp outputs" also called "low level outputs" do so by providing female RCA type jacks. These are often found at the end of a short (4 - 6 inch) cable and are usually color coded red & white or red & black (some receivers provide a yellow RCA jack for video in / out, too). To use these RCA audio jacks, you need to realize that one jack is for the left channel source and the other is for the right channel source for a stereo signal. You will have to connect a compatible plug and cable of enough length to extend to a remote amplifier's RCA input jacks. The vehicle's speakers would also need to be connected directly to the same amplifier's output terminals. Using the two audio (left and right) RCA jacks will only allow the radio to control balance of the left and right audio, no fader (front and rear) control is possible. To get fader control, you'd have to either have a radio with four RCA low level output jacks (front L & R *and* rear L & R), or use the radio's speaker (or high level output) wires and connect them to the amplifier's speaker (or high level) input terminals.

All unused receiver wires should be terminated in a wirenut or securely wrapped in electrical tape to prevent accidental contact with grounded metal or other wires behind the dash.

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1 Answer

Mono to stereo


You can't convert mono to stereo since the TV only has a single input, and not the separate right and left channel circuits needed for stereo. If you are connecting a stereo source like a DVD player, what you can do is combine the right and left channels into one and connect that to the mono input. You need an audio Y-adapter with two RCA jacks going into a single RCA plug. These are available from Radio Shack. If you are outside the US, there should be local sources such as a stereo shop where you can find the adapter. This won't give you stereo, obviously, but you will have all the sound.

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How to connect surround sound system, at the moment its connected through cable, each time we use the dvd player we have take them out of the cable box then into the dvd player, we have a LG 42PC55 tv.


In order of picture and sound quality -- from best to worst:

1. The best way to connect, assuming your TV and A/V Receiver and/or Cable Box have the jacks, is to use a HDMI cable ( this cable is for both sound and video).

2. Use Component Video out to input (3 RCA plugs, Red, Blue & Green) along with RCA Audio out to input (2 RCA plugs for stereo - 1 for mono).

3. Use S-Video out to input (1 din plug) along with RCA Audio out to input (2 RCA plugs for stereo - 1 for mono).

4. Use Video out to input (1 RCA plug, yellow) along with RCA Audio out to input (2 RCA plugs for stereo - 1 for mono).

Be sure to select the correct inputs on your TV and Audio/Video receiver when you are watching TV. For example if you have connected your TV to HDMI 1 and DVD to HDMI 2, you will not see or hear anything if you don't select the correct input on your TV and A/V receiver for the input you want to see and hear.

Detailed connection instructions will be found in your owners' manuals.

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1 Answer

Car amplifers,,,,kicker amp's RCA jacks!


You could do a couple things if your head unit has all three outputs, then take them and hook them into the inputs. If you have just the front and the rear outputs, hook those to the inputs front and rear. Then hook the output of the 4 channel to the input of the mono block. I hope this helped
-Andrew Hawkins

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1 Answer

Jensen LXA400


I have this same amplifier. I have noticed several ways it will "not work" during my ownership of it. I have it connected to a seperate battery to save my alternator, battery, etc as it is a power hungry beast for how low the output wattage is. Test the input voltage to see if you have enough, one way to see this is to check the "jensen" emblem that lights up. If you dont have enough power it will appear dim and only the right side lights up. Also the amplifier will not work if your speakers are "blown" even a little bit. Ive taken speakers that wont work on my lxa400 and connected them to a higher power amp and they will work (although they will sound horrible) If youre smart you will keep the gain under 3/4 on this amp, I see some people have found out the hard way that full gain fries the amplifier circuitry. Not an expert on electronics but it smells somewhat like melting glue or plastic. Ive noticed a lot of people have problems with the RCA jacks as well. There are 8 jacks, in two clusters. The first one is A+B and the second is C+D. Note: You do not NEED Y connectors on this amp! Connect your output rcas from the deck to top left and bottom left jacks of the left cluster. This will give you left and right (a+b) output from the first set of speaker outs. Then connect an rca patch cord from the top right and bottom right jacks of the first cluster and connect the other end to the top left and bottom left of the second cluster. This will give you output from the second set of speaker outs. Remember that this is in 4 channel mode. I dont remember the set ups for 3 channel but two channel I believe is the left deck rca goes to top left of the first cluster and the right deck rca goes to the top left of the second cluster. Then you just wire the speaker outs according to the picture on the amplifier. something like this: _________________________ |(+) - (-) +| ~~~~~~~~~~~~~~~~~~~~~~~~~ Speaker + goes to (+) and speaker - goes to (-) Also addressing another issue if you want to increase the wattage to your speakers you just use a lower resistance speaker (2ohm instead of 4) I would not recommend using anything over 4 ohms. As for the high level inputs, I dont recommend using them unless you have the plugs that go with them, its a lot easier to wire your deck rears to a line converter (changes straight speaker wire to RCA jacks) or to just buy a new deck with RCA outs. Last item, common knowledge: 400 watts does NOT mean 400 watts!!! This amplifier puts out very little actual wattage (50 or 83 per channel depending on the load) Hope all this helps someone out there.. Anyone who knows the 3 channel setups I would appreciate it.

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