SHOMON
95 MTX
Check out Sonic Electronix or Woofers Etc. They have some pretty good deals on sub woofers.
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With every post to this thread my dream of adding a little bit of bass to my system, in a simple, inexpensive, an unobtrusive way dies a slow an painful death.
C/
Josh, you are heading towards the path of no return and I need to give you forewarning. Undoubtedly I appreciate I nice sounding system just like you. But like I mentioned (and others) this hole goes deep. I was an enthusiast back in the day so I decided to tackle my suburban a couple years ago myself. $5000.00+ in components, not including my time (months in the garage), driving around with car pulled apart half the time and fabrication for components.Man, this is frustrating. The way these companies rate amps should be illegal.
Now I'm completely ignoring Peak/RMS ratings and I'm only looking at fuse sizes. If I want a true RMS of 750 watts then I need something with some big fuses. I keep trying to understand the fuse rating system but everyone seems to have their own calculations that they trust.
So let's say I went really high, something with 100-120 watts worth of fuses, in a amp with a marketing rating of 3-4000 peak watts (Planet Audio PL4000.1D). How do ohms come in to play when calculating fuse based RMS power? I don't think I want to push an RMS that is actually well above what my speaker can handle, right?
And and what rating do I need to start thinking about capacitors or extra batteries? I don't want the head lights to dim while I listen to the radio or, even worse, damage the battery or something else.
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Get the dynomat, your car will smell like asphalt on smoldering days with the cheaper stuffLol I'm a life'r. My first car at 16 had 2 12's and every vehicle I've owned since has had 10's or 12's. I'm an enthusiast but not competition level by any means. I just need clear mids and lows (the factory speakers are ok for that) and a little bump in the trunk. I prefer the harder hit of 10's over the louder sound of 12's.
I've put Dynamat in a couple cars (trunk only) and started looking online today. It sounds like there are some cheaper/better options now. Anyone ever used Partsam? I'm in between on the 80 mil aluminum or 315 mil foam. Or maybe it's all junk and I should just get what I've used before?
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Don’t feel bad about sending stuff back Josh, I just sent speakers ordered back and purchased infinity kappas as originally suggested for doors and 6x9 reference for the deck.
I also ordered 3.5” Infinty Kappa for the front and rear centers. Is this going to sound awful (is this signal processed by Sony unit)? Final piece will be the amped JL sub which will have to wait a few weeks. Play money spent quickly...

Center speaker is processed by the sony unit. I remember reading it’s a combined sum of L+R. not a true center only channel. The rear center gets the same signal wired in parallel hence the 8 ohm rating on the centers.
Here’s some pics I took a long while back.
Looking straight down from the windshield.
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I took some measurements and I think the box is going to be too big but I went ahead and ordered everything any way ($288 all in - whoo hoo). The sub manual has some good info about building a custom box and I messaged my old neighbor last night to see if he'd want to help me. He's retired and does wood working as a hobby. I've never built a custom box but it doesn't look that hard.
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Don’t feel bad about sending stuff back Josh, I just sent speakers ordered back and purchased infinity kappas as originally suggested for doors and 6x9 reference for the deck.
I also ordered 3.5” Infinty Kappa for the front and rear centers. Is this going to sound awful (is this signal processed by Sony unit)? Final piece will be the amped JL sub which will have to wait a few weeks. Play money spent quickly...

Man, this is frustrating. The way these companies rate amps should be illegal.
Now I'm completely ignoring Peak/RMS ratings and I'm only looking at fuse sizes. If I want a true RMS of 750 watts then I need something with some big fuses. I keep trying to understand the fuse rating system but everyone seems to have their own calculations that they trust.
So let's say I went really high, something with 100-120 watts worth of fuses, in a amp with a marketing rating of 3-4000 peak watts (Planet Audio PL4000.1D). How do ohms come in to play when calculating fuse based RMS power? I don't think I want to push an RMS that is actually well above what my speaker can handle, right?
And and what rating do I need to start thinking about capacitors or extra batteries? I don't want the head lights to dim while I listen to the radio or, even worse, damage the battery or something else.
Sent from my Pixel 2 XL using Tapatalk
That’s disheartening...I do plan to amplify. I was thinking the centers were separate channels? Could separate wire be run to center speakers and factory center wire relocated to hidden area?If you’re installing amps, skip the center channel in the back and the front will need to be attenuated. I unhooked the rear center and built a 6 dB per octave 1st order narrow band pass crossover for the front that will block most of thr frequencies above and below the beeps from the touch panels in the car. With the center channel at full output, it will ruin your soundstage and imaging. You can unhook it completely, but the haptic beeps from the hvac/radio controls only come through the center channel, and I found myself having a hard time adjusting the controls without the beeps. They are around 700 Hz. I used a 2 millihenry ferrite core inductor with a 22 microfarad non polarized eletrctolytic capacitor in series with the speaker positive.
Alpine V all the way! The birth certicates can be, and usually are higher than what they are rated, as was mine.Ignore peak ratings. They’re meaningless. Any reputable brand’s RMS power ratings are accurate, provided you pay attention to the voltage they quote at. Make sure you’re comparing ratings at the same voltage, like 14.4. The 14.4 rating is not very realistic by the way, alternators only charge that high at full output, and you have voltage drop over the power wire, etc. Good brands like Alpine actually output more than they advertise. For example, my Pdx-5 is rated at 75 x 4 and 300 x 1. It actually puts out closer to clean and clip free 100 x 4 and 375 x 1 at 14 volts, verified with my oscope measuring RMS voltage directly and current inductively with a clamp on probe.
Stick to reputable brands like Alpine, Rockford Fosgate, JBL, JL Audio, Audio Control, etc. All those 3rd tier brands tend to embellish their ratings or rate power with a bunch of clipping.
If you guys want a seriously powerful amp that won’t totally break the bank, I can’t recommend the Alpine PDX-V9 5 channel enough. It’s very efficient, only requiring 4 awg power wire and puts out an honest 550 plus watts rms to the sub and 120 plus per channel to the highs. They can be had for under 500. You get what you pay for guys. I have the predecessor to the V9, the pdx-5. It’s 8 years old and still going strong in it’s 3rd car.
Check out stinger roadkill. It’s less than 100 bucks for a bulk pack on amazon. It is more pliable than dynamat and doesn’t make as big a mess of your scissors. It works just as well too.Lol I'm a life'r. My first car at 16 had 2 12's and every vehicle I've owned since has had 10's or 12's. I'm an enthusiast but not competition level by any means. I just need clear mids and lows (the factory speakers are ok for that) and a little bump in the trunk. I prefer the harder hit of 10's over the louder sound of 12's.
I've put Dynamat in a couple cars (trunk only) and started looking online today. It sounds like there are some cheaper/better options now. Anyone ever used Partsam? I'm in between on the 80 mil aluminum or 315 mil foam. Or maybe it's all junk and I should just get what I've used before?
Sent from my Pixel 2 XL using Tapatalk
That’s disheartening...I do plan to amplify. I was thinking the centers were separate channels? Could separate wire be run to center speakers and factory center wire relocated to hidden area?
Alpine V all the way! The birth certicates can be, and usually are higher than what they are rated, as was mine.
Thank youCenter speaker is processed by the sony unit. I remember reading it’s a combined sum of L+R. not a true center only channel. The rear center gets the same signal wired in parallel hence the 8 ohm rating on the centers.
Here’s some pics I took a long while back.
Looking straight down from the windshield.
![]()