Question about Pyramid PWFX107 Car Subwoofer

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Pwfx107 I bought 2 10"s and hook them up to a 750x amp but they r not loud at all do I need a bigger box cuz i dont no the specs for these subs

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Re: pwfx107

Its hard to tell whats wrong with so little info , but theres alot that you can check , Is your amp putting out the power ? If the amp is a Pro series 750x amp then check your amp inputs they might be too low hence low output. Otherwise i would like to know what size of enclosure you have these spekers on and how they are connected to the amp.

Posted on Mar 21, 2007

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I need to see a wiring diagram of an MPX 210 speaker box. My brother-in-law bought one from a friend and someone completely jacked the wiring. I just need to see how it should be wired. Pictures would be...

It really depends on what subs you are mounting in the box. If you are mounting single voice coil subs, it's easy. positive of the sub goes to positive on the inside of the box and the negative of the sub goes to the negative of the box. Then you would repeat the process for the other sub. Then wire the box to the amp using the push or screw terminals.

Now if you have dual voice coil subs, that's where it can get tricky. You really have to know what amp your using and what ohm load it can handle, and how many channels you will be using.

I'm going to give you an example that has two dual 4 ohm voice coil subs. Let's assume you will be hooking them to a 2 channel amplifier that is 2 ohm stable.

wire the positive of both voice coils to the positive post of the box. then wire both negatives of the voice coils to the negative of the box. Repeat the process with the other sub. This is called a parallel set up. Two 4 ohm voice coils wired this way will produce a 2 ohm load. since your amp is 2 channel, you will hook the positive and negative to the positive and negative of one side of the box, then repeat with the other channel to the other side. This will allow the most power to come out of a 2 ohm stable amplifier.

If you have something other than the equipment I gave you an example of, repost with your equipment specs and I will walk you through it.

Sep 09, 2011 | Dual QPower 10" Square Slot-Vented...

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I have two different sets of hook ups on my Power Aucoustik 10" Sub. Do I hook up both sides?

Depending on the PA FUBAR you have. The voice coil on those subs are DVC. Dual Voice Coil. You need to know a couple things. What kind of amp are you going to run on it. And what is the resistance (OHM) rating of each voice coil. MY two 12's are dual 4 ohm. Meaning that there are essentially 4 speakers to hook up. My amp currently is not 2 ohm stable in bridged. So what I did is run each speaker in parallel (red2red,black2black) then run to the box terminal. So now the dual 4 ohm voice coils are basically 2 ohm. I have 2 speakers. Now I hook the box up in series. To bring the now two 2 ohm speakers into one 4 ohm speaker. This is called series/parallel setup. My amp sees this box as 1 channel @ 4ohms. The downfall to this is the output of the amp is divided up into each speaker. So instead of sending all 1400 watts to one sub. I will send 700 to each sub. But here is a catch. even though each speaker is half the total wattage it will still be 3db louder. Meaning it will be as loud as 1 sub running 1400 watts. To conclude i need to know how many of those subs you are going to run on the amp.. And the model number of the amp so I can match up your wiring.

Jun 06, 2011 | Power Acoustik FUBAR-12W Car Subwoofer

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Can I hook up 2 lanzar opti1532 subs 2 a kicker kx 1200.1 or do I need a bigger amp, its a 1ohm stable amp an birth sheet says 1390watts but they told me at 14+ volts it will do 1400rms

Based solely on spec sheet information the Lanzars can handle 1300 watts RMS and the KX1200 is rated at 300x1 @ 4 ohms, 600x1 @ 2 ohms, & 1200x1 @ 1 ohm. Even with a 1 ohm load you will still only be providing 600 watts to each sub. While the kicker will provide more power at 14+ volts, no car creates more than 12-13 volts via its alternator. A car battery only provides 12.6 volts. So you will be loking at 1200 watts from 1 channel as a best case scenario.

Additionally, with your 2 subs, they will need to both be Dual 4 ohm voice coils in order to net a 1 ohm final load. Each voice coil will need to be wired in parallel and then each speaker needs to be wired in parallel.

Dec 23, 2010 | Lanzar OPTI1532D Car Subwoofer

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I bulit a box for 2 L7 15s and at about 1/2 WAY up one of em seems to pop or bottem out

The box is either to small or to big or requires a port or not, depending. The box must be within spec for the subs.If box is smaller put stuffing in the box will make the box seem bigger to the sub.
Here is a website that is about making sub boxes and will give you an understanding of how sub boxes work

Mar 24, 2010 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

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Sony radio sub outputs don't work at all

you may need a new head unit. it sound like you have lost the fron rca hook ups on your unit. common prob. usually cause by a surge traveling then the rca cables. i myself have had this happen and there is nothing you can do to the unit to fix it.

Sep 26, 2009 | Sony XS-V1330 Coaxial Car Speaker

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Upgrade my 8'' to a 10'' subwoofer in factory box in a 02 expedition

So you want to put a bigger sub in the enclosure. Well, the enclosure was calibrated for an 8". Every enclosure is custom made for the amound of Xmax, QMS and specs of the subwoofer. Putting a bigger sub would acutally not sound as good as an 8, because the box was calibrated for it. Get an enclosure that is made for the 10". But if you insist of doing so, you need a router to cut a hole.

Sep 13, 2009 | Car Speakers & Subwoofers

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I just bought 2 12 incch explodes the xs-l126p5 modle and i have a 1000 watt explode amp xm-1652z modl. in a bandpass box. it dont sound the way i expected to. if you can help...

Did you have it hooked up by a professional or did you (or someone you know) do it. If a shop/pro didnt do it make 100% sure everything is hooked up right. Increase the size of your power wire from your battery to the amp. Check your gain settings on the amp. If the vehicle you have this in has a trunk (not a hatch back), position your speakers against the back seat facing you as your putting them in the trunk. If none of this works, buy bigger speakers and more power!

Jun 15, 2009 | Car Speakers & Subwoofers

2 Answers


If you Wire the 13 w7 in parallel you get 0.75 ohms which this amp is incapable of handling, that's why your speaker is popping. Be carefull cause this setup could ruin both your amp and sub. You have to wire that sub in series so that the amp "sees" a 3 ohm load which it's best suited for.

May 28, 2008 | Jl Audio 13W7 Car Subwoofer

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750x to 2 10" pyramids

There sould be an input level control on the main amp that drives these woofers. Adjust the input so that even iof the stereo is tuned up all the way the amp is limiting the amout af input. Before you do this and turn up the stereo, turn down the amp input control all the way then you can slowly bring it up when you turn up the stereo's volume. Good Luck

Mar 23, 2007 | Pyramid PWFX107 Car Subwoofer

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