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HELP!! Subs cut out a mid volume


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That amp is taking power from a tiny coffee straw seems like it.

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1/0 wire,

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That amp is taking power from a tiny coffee straw seems like it.

That's what I'm thinking. In my truck I'm running 2 gauge

2010 GMC Sierra SLE Texas Edition Sky High 2/0 OFC Wiring

2 Digital Designs 1508's Supercharged

Digital Designs Door Speakers

Rockford Fosgate T1500-1bdcp

Rockford Fosgate Prime 300x4

Rockford Fosgate 3Sixty.3

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XS Power D3400

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take the sub box wired at 1ohm in your truck and see what it does...

CURRENT SYSTEM:

  • Alternator:
    1. Stock alt on mids/highs
    2. Isolated DC Power 270 SP - Charging @ 16.8v
  • Batteries: (2) XS D1400s
  • Power Cable: Double Runs of 1/0 KNU Kolossus Fleks
  • Headunit: 80-PRS
  • Sub Amp: DC 5.0k
  • Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones
  • Subwoofer Enclosure: 9.1cubes @ 32hz - brutal.
  • Mids & Highs Amp: CT125.4
  • Active Components:
    • Mids RE XXX 6.5c
    • Highs - 3 RE XXX tweeters per side(A pillar)
  • Noise Control: Damplifier Pro all over the cab.

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Highest Legal Score: 151.0 db
Highest Musical 30 Second Average: 151.6 db
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I wanted to do that but the box is bolted to the body of the truck. I will more than likely get him to run new power and ground

2010 GMC Sierra SLE Texas Edition Sky High 2/0 OFC Wiring

2 Digital Designs 1508's Supercharged

Digital Designs Door Speakers

Rockford Fosgate T1500-1bdcp

Rockford Fosgate Prime 300x4

Rockford Fosgate 3Sixty.3

SMD VM-1

XS Power D3400

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I wanted to do that but the box is bolted to the body of the truck. I will more than likely get him to run new power and ground

Yeah, I think you are on the right track with the wire...

CURRENT SYSTEM:

  • Alternator:
    1. Stock alt on mids/highs
    2. Isolated DC Power 270 SP - Charging @ 16.8v
  • Batteries: (2) XS D1400s
  • Power Cable: Double Runs of 1/0 KNU Kolossus Fleks
  • Headunit: 80-PRS
  • Sub Amp: DC 5.0k
  • Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones
  • Subwoofer Enclosure: 9.1cubes @ 32hz - brutal.
  • Mids & Highs Amp: CT125.4
  • Active Components:
    • Mids RE XXX 6.5c
    • Highs - 3 RE XXX tweeters per side(A pillar)
  • Noise Control: Damplifier Pro all over the cab.

Build Log

If you do business with me please leave feedback here: FEEDBACK THREAD

 
Highest Legal Score: 151.0 db
Highest Musical 30 Second Average: 151.6 db
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sounds like your starving amp and making it work too hard. give it some bigger wire. 4 gauge i guess and you should be fine. are you sure the 8 gauge is a good brand, reliable wire? cause if its not then that could definitely cause a problem. like socky said its trying to down the drink threw a stiring straw. plus at 1 ohm it is way less efficient than at 4 ohm.

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From the Crossfire website:

C3 501

Product Features:

· SMD Dedicated Audio Chip Devices

· International Standards FR-4 Double Sided Fiberglass PCB

· Fully 1 Ohm Stable Mono Operation

· High Efficiency MOSFET Power Supplies

· Variable Low Pass Filter

· Variable Bass Boost Control

· Power On & Protection LED Indicators

· Short-Circuit / Thermal / Overload / Under Voltage Protection

· Small Footprint

Doesn't the amp also only accept an 8 GA power/ground connection? For the power and ground I would either give some gauge adapters a try:

spt522.jpg

http://www.sonicelectronix.com/item_32009_Stinger-SPT522.html

Or use distribution blocks to make the runs of 8GA as short as possible.

Do you have pics of your ground connections?

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what kind of speaker wire you running? i had install bay 12g speaker wire and when i would turn my volume full tilt it would cut out and go

into protection mode on some notes, i replaced it with better wire and problum solved, you might have a short

wire those subs to 1ohm and run 4g wire

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