Question about Pyramid PWFX107 Car Subwoofer

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Bottoming out i have 2 10" of these what would keep them from bottoming out so much?

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Re: bottoming out

Well, If you're sure they're not blown, they're either bottoming out because you're overpowering them, or your box is not the best. I'd recommend putting them in a sealed box. even run some caulk inside where every peice of wood meets another, just to make sure it's sealed. If your box isn't sealed well at the edges, or your ports are too big, the speaker will have excessive excursion (in & out movement), causing bottoming out, and voice coil damage. Plus, I just like the nice tight bass from a sealed enclosure. Hope this helps.

Posted on Nov 28, 2007

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Blew my Nakamichi Car SPeakers

Take out the speakers and take an ohm meter and measure from both speaker connections on the speaker and see if there is an resistance or connections to the frame of the speakers. Next see how many ohms the original speakers where, and what these speakers are. If they are different, you may have blown the amp or the head unit. Good Luck

Jul 27, 2007 | Bazooka CS8A5 Car Subwoofer

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I have a jvc car stereo , doesnt keep the bass and treble settings but keeps the radio stations , any ideas ?

I have a JVC deck and only way to accept the setting is to hit the volume button to accept the setting, if I don't it won't keep the setting.

Sep 19, 2010 | JVC Car Speakers & Subwoofers

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On most aftermarket stereos there will be a sticker on the bottom that will explain the wire colors and what they are. If the mounting sleeve is still on it you will have to remove it to see what I am talking about. The three main wires that you need to worry about are:
  • RED - Power (Bat +)
  • Black - Ground
  • Yellow - Constant or Memory ( now with the constant wire some vehicles have a seperate wire connection for this some don't what this wire does is give your stereo a little juice for keeping settings, cd position, time stuff like that. Most will just splice this into your hot wire.)
  • Speaker wires- This is what trips everyone up. you can get away with trial and error with this one. The trick with speaker wires they will all be in pairs. one wire will be solid and the other will have a stripe of the same color on it. once you find one the others will be easier to find.

Aug 01, 2010 | Car Speakers & Subwoofers

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Popping noise on my 12" type r subs

The subs are making that sound when the bottom out + when they reach full excursion be careful if it keeps happening eventually your subs will fail because you will end up damaging the subs voice coil.

Happy Booming

Apr 20, 2010 | Alpine Type-R SWR-1222D Car Subwoofer

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When I am listening to my stereo in my truck with a pioneer headunit and a rockford fosgate p1 10" subwoofer. I listen to music and part of the song will hit hard then it will weaken dramatically. What is...

Your amplifier is going into protect mode.
It may already be damaged from repeated abuse.
The subwoofer is either bottoming out... has a blown or damaged coil... or your charging system is not adequate to keep your batter charged above 8VDC.

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Oct 26, 2009 | Rockford Fosgate Car Speakers & Subwoofers

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Maystar mcd303rds

Hi there,

I have just had the same problem. I have a N reg vectra and just fitted a Maystar radio. I too was getting the PHONE IN message randomly when the ignition was on (fine when not).

I think the PHONE IN is a mute function to cut sound when a call comes in. On my connections it was the brown wire - it should tell you the "Phone in" connection in the manual or on the bottom of the radio. I disconnected this and taped up with insulation tape to avoid connecting with anything else. Worked for me!

Nov 25, 2007 | Car Speakers & Subwoofers

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