FiAudioSubwoofersjj

I have an old KENWOOD kdc138 in my Mazda Tribute currently .. It only has one pre-out which the manual says the pre-out is for the rear/sub signal out .. Currently I have a mono block that is receiving the signal from the pre-out. What I want to do is add an external amp for the front and rear with still keeping my mono block. How can I do this all with only one pre-out? Another question is what is the difference between the front signal and rear signal pre-outs on a receiver that has multiple pre-outs?

So I should just send the rear preamps to the fronts and just keep two front?

Oh .. Hahaha.. how are rears useless?

What do u mean tears are wasted?

Oh and one more thing ... What is the easiest way to add Bluetooth connectivity without replacing the whole head unit receiver?

Cool I keep my fader settings at neutral anyways .. So since the front signal and rear signal pre-outs have the same frequency range .. All I have to do is use the rca splitter to send a pair of rca connects to the amp for the fronts/rear and then the other to the mono block ?

Oh and one more thing ... What is the easiest way to add Bluetooth connectivity without replacing the whole head unit receiver?

So I got this 12 inch square sub for free and I wanted to use it temporarily in my tribute till I get a box built for my other 12 .. But the square one has no info on it except the dust cap witch seems to me is just an X .. If anyone knows about this sub or brand please let me know thanks

The box is for a different 12 .... Not the square one because it's already in a sealed enclosure

I will get photos of the motor soon when I take it out of the sealed enclosure .... But I had seen if the motor had any info a while back and it didn't ... It is a double stacked magnet tho

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hey so i want to build an aeroport enclosure for a fi ssd 12 @ 33 hz and i have no idea if this graph is good or not. this box is 2.5 cubft and also i want to use a pvc port but i only have a 6inch pvc pipe at 15 inches in length and for what i need i will need a 21 inch long port for 6 inch port but i have also have a 4 inch pipe that i only need around 9 inches in length so im thinking about using the 4 inch but not sure if that will give me enough port area and not choke the sub. so can anyone tell me if this graph is good or is it too peaky at the 33hz point and if this is too much of a peak how can i make the tuning of the box more flat? test1 graph.bmp

What is the difference between the 2 channel AC and the 4 channel AC? Isn't there only a left and the right , meaning the left front and left rear get the same left channel signal, and the right front and right rear get the same right channel signal ? Or is there a difference in signals given from the front and the rear?

How to install external 4-channel amp and mono block amps into Mercedes Benz cla300 2016 with Harman kardon factory upgrade.. Keeping factory head unit console and steering wheel controls?

Yea I have 1 6 inch in diameter but it's only 15 inches long and is super heavy because the pipe is from a plumbing store and i need around 22 inches in length

How much of a difference is designing a home audio sub enclosure than a ported car enclosure ... Never built a home sub box befor only car... Any info?

Is the method of using a high quality Line output converter/processor to add in aftermarket systems used by professionals in high end luxury cars?

Thanks ... I heard that the Mercedes runs through Fiber optics.. Will this be still able to work with?

https://www.pacificstereo.com/garage/2007-mercedes-benz-s550-custom-alarm-amplifier-and-subwoofer-system.html I found this but not a lot of info on installation ... So were do u get the output from the factory receiver to connect to the interface?

Is the clean sweep just a line output converter?

Is there any other companies that make the clean sweep intergration interface or just jl?

so should i go and build my original design? 2 4 aeroport (i do not have long enough 6 inch pipe) tuned at 33 in a 2.5 cuft box?

i tried a 6 inch port and still the same

so is there an aeroport design that is tuned correctly that i should build? or will the 2.5 cuft box with 2 4 inch aeroports tuned at 33 hertz with the high peak at 33 be good enough? i dont know what i am doing wrong , im inserting all the t/s parameters with the proper size box and tuning and always ends up being peaky at 33 herts