Expert Service 1-877-289-7664 [Hours]

Summer of Savings

XS Power BIG3XP

XP FLEX 1/0 AWG Big 3 Upgrade Kit for Audio Sytems up to 250 Amps

In Stock
|

List price $99.99

You Save: $50.00 (50.01%)

$49.99

with warranty

+ FREE Shipping in US 48

Arrives by Thursday, July 9 to zip 07095

Add an Extended Warranty

SquareTrade Product Warranty
Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

In Stock

Arrives by Thu, July 9

Get FAST answers from customers ASK a Question See questions answers

Bundled Savings with this Product

Add a pair of Large Gauge Cable Crimper and Save 25%

Provide a secure connection for large gauge ring terminals with this easy to use Hammer Style Crimper.

5.50

74886

715

XS Power BIG3XP

$49.99

+

25% OFF

The Install Bay IBHDCRIMP

$21.99

Special Price $16.49 ($21.99 if purchased separately)

The Install Bay IBHDCRIMP

Large Gauge Hammer Style Crimper • Perfect For Large Gauge Ring Terminals • Provides Secure Connection For Large Gauge Wire &bull: Works With 1/0 To 8 Gauge Wire

Add a pair of Heavy Duty Wire & Cable Cutters and Save $4.50

Easily cut any thickness wire up to 1/0 AWG with these heavy duty curved blade cutters. They even have an extra knife blade for stripping away the insulation.

4.50

74886

136

XS Power BIG3XP

$49.99

+

25% OFF

Xscorpion CC-06

$17.99

Special Price $13.49 ($17.99 if purchased separately)

Xscorpion CC-06

Electrical Wire & Cable Cutter/Stripper • Cuts Any Thickness Wire up to 1/0 AWG • Curved Blade Cuts Wire up to 8.25mm • Extra Knife for Stripping Insulation

(Offer 1 of 2)

Combined Total Price

$66.48

You Save $5.50

What's In The Box?
  • 2 x 4' 1/0-gauge ground cables with ring terminals
  • 1 x 6' 1/0-gauge power cable with ring terminals
  • 10 x wire clamps
  • 10 x screws
  • 10 x zip ties
  • 3 x additional ring terminals

General Features:

  • 1/0 Gauge Big 3 Upgrade Kit
  • Use to upgrade your factory battery ground wire, alternator ground wire and alternator power wire
  • Use to solve issues with dimming lights
    • More effective than a capacitor when experiencing dimming lights
  • Makes electrical system run more efficiently
    • Deeper bass
    • Amps run cooler and are less likely to go into protect mode
  • Use for systems 250A or less
  • Thick but flexible CCA wiring
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


Check out the XS Power BIG3XP Installation Procedure

Power / Ground Cable Specifications

Wire Material
The material that the wire is made of. Copper & aluminum are the most commonly used materials. OFC - Oxygen Free Copper is the ideal choice for wire material. Copper is a superior electrical conductor, & does not expand or contract with heat. CCA - Copper-Clad Aluminum is a suitable choice for lower powered or budget applications. The power transfer is not on par with OFC, but this material offers significant savings.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
80%
4 Star
17%
3 Star
3%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.7
Features
4.6
Design
4.8
Usability
4.7
Maurice

Camden, DE

Overall
Durability
Value
Features
Design
Usability
Great and Easy to use.

March 10, 2014

Was curious if I was going to have to put the ring terminals on myself and I'm glad they came already on. Came with everything needed to do this upgrade and had easy enough instructions to follow even if you didn't know anything about cars. Would recommend it to anyone whose looking to do this upgrade.

49 of 87 found this helpful

Was this review helpful to you?

the boy

cleburne, tx

Overall
Durability
Value
Features
Design
Usability
pretty nice

August 11, 2014

it gave me less flex in my voltage, but made my motor and trans run and shift noticeably better. now if I just upgrade my alternator, every thing would be good.

52 of 96 found this helpful

Was this review helpful to you?

fatboybuick

milwaukee wi

Overall
Durability
Value
Features
Design
Usability
big 3 upgrade kit

March 11, 2014

This is an perfect kit to do the big 3 upgrade. It actually contained enough wire for me to have sufficient wire up everything up front and to complete the ground and distribution block wiring for my second battery in the trunk. Would highly recommend.

53 of 99 found this helpful

Was this review helpful to you?

rob

POLK CITY, FL

Overall
Durability
Value
Features
Design
Usability
Upgrade

March 3, 2014

Used this to upgrade my electrical system when i put air ride on my 63 cadillac, worked great. Comes with everything needed, would recommend.

47 of 88 found this helpful

Was this review helpful to you?

L7's

Somerset, WI

Overall
Durability
Value
Features
Design
Usability
Must have for Big Installs

March 13, 2015

The Big3XP kit has all the necessities if you're thinking about adding some serious power to your ride. There's more than enough 1/0 cable to get around under your hood and the accessories pack isn't too shabby either. My only request is that they up the number of extra 1/0 "lugs" to 4 or 6. The pack only comes with two and if you need the Big 3 for your system 3 pre-cut lengths of cable with lugs already attached and 2 extra lugs for your custom install doesn't quite get it done so do yourself a fav and add another pair of lugs if you order this kit.

26 of 47 found this helpful

Was this review helpful to you?

Dredz

Louisville,Ky

Overall
Durability
Value
Features
Design
Usability
Great Value

July 1, 2014

I would recommend this product 2 any 1 it is a great buy and would purchase product again which i am goin 2

54 of 103 found this helpful

Was this review helpful to you?

Mitchell

Myrtle Beach, SC

Overall
Durability
Value
Features
Design
Usability
Great Purchase

May 15, 2014

Instead of adding a second battery I bought this, 100% worth the purchase. I never have any electrical problems or power drops. The wire is true 0 gauge. XS power makes great products, I highly recommend this upgrade to anyone.

55 of 106 found this helpful

Was this review helpful to you?

stevedino41

Garland tx

Overall
Durability
Value
Features
Design
Usability
Awesome product

April 3, 2015

This product will improve electrical system. Everything works better. Cons would be: if you are not good with your hands you have to have someone install it.

16 of 29 found this helpful

Was this review helpful to you?

mr diddy2u

Jeannette pa

Overall
Durability
Value
Features
Design
Usability
big 3 xp

March 30, 2015

this works...as a skeptic, i dont mind spending a few dollars for trial and error..after successfully finding a suitable ground to the engine block, my headlight dim is minimal..some of the local shops around hera want 10-12 dollars per foot of the 0 gauge wiring..this is a great deal...sonic forever!!! wish i had some sonic stickers!! great product!!...
2 kickercomp r 12's
kicker cx 1200 amp
kicker dx 250
infinity reference 6x9's
infinity reference 6.5's
kenwood ddx 419 head
power acoustik 30 farrad cap

20 of 37 found this helpful

Was this review helpful to you?

Thomas

Somewhere, MN

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Nice kit

May 10, 2015

Product works great, had plenty of wire. I bought extra ring terminals so I could make multiple runs will all the wire.

10 of 18 found this helpful

Was this review helpful to you?

Martin

Glen Burnie, MD

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
The BIG 3

July 3, 2015

This is a real fact. No more severe voltage drop. No problems with charging second battery. And a excellent price. Invest in this when doing a system upgrade.

0 of 0 found this helpful

Was this review helpful to you?

Mark

Houston, TX

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
great quality

July 3, 2015

great product included everything for my upgrade with a lot of wire to spare. this was installed in a 2004 chevrolet tahoe. I was able to do battery positive to alternator positive. battery ground to alternator ground. alternator ground to chassis and alternator positive to the little junction box. after all that I had about 3.5 -4 feet of wire left over. only thing I could find wrong was that one of the terminals was a little loose but nothing a little extra pressure can fix.

0 of 0 found this helpful

Was this review helpful to you?

Champ

Greenville, NC

Overall
Durability
Value
Features
Design
Usability
Good for the monry

May 4, 2015

For the little bit of money this cost, it's a very good upgrade. I haven't actually used a volt meter to compare before and after, but my stereo definitely got louder and no dimming lights. The increased efficiency in transfer route keep the voltage constantly stable equaling higher voltage for the amps to use.

8 of 16 found this helpful

Was this review helpful to you?

Arlis

Cedar Lake, IN

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Amazing

May 1, 2015

Xp flex lives up to its name for 1/0 Cable it is flexible for easy I stallation. Definitely helped a lot of my voltage drop still have some so I'm going with XS Powers batteries because all of XS Powers products have great quality. Thanks Sonic Electronix for the amazing deals

8 of 16 found this helpful

Was this review helpful to you?

Phillip

Arlington, TX

Overall
Durability
Value
Features
Design
Usability
no dimming lights

April 28, 2015

Great product, followed enclosed instructions, easy install...I'm just running a two amp system and from my voltage meter shows consistent, no big drops when sub's are subbin', definitely recommend this product

8 of 16 found this helpful

Was this review helpful to you?

Bobby Z

Bella Vista, AR

Overall
Durability
Value
Features
Design
Usability
Simple product

February 22, 2015

Very easy to install and described correctly. Comes with extra pieces just in cast you want to shorten the cables.

30 of 60 found this helpful

Was this review helpful to you?

Basshead4light77

New jrddigb

Overall
Durability
Value
Features
Design
Usability
Skar audio....THE NEXT BIGGEST THING

January 23, 2015

I got 2 pair of the spx-65c and they are we built and package.. I would diffintly buy more Skar equipment

52 of 104 found this helpful

Was this review helpful to you?

Levi

New Knoxville, OH

Overall
Durability
Value
Features
Design
Usability
Instant Sound Quality Improvement

May 16, 2014

I installed this in a 1998 Grand Prix GTP, the entire install took about half an hour. This was well worth $50!! Before this, I was having problems with headlight dimming when the bass would hit, the entire car would sometimes shut off, and the windows were getting slow. After I installed this, the engine seems to crank over (start) faster, no more of the entire car shutting off, windows seem to work faster, and best of all-- a significant improvement in sound quality. I also had a lot of alternator whine prior to this installation; this kit seemed to greatly reduce that (it's still there, just not nearly as noticeable). One should take note, that this product DOES NOT come with the extra ring terminals as shown in the picture.

52 of 104 found this helpful

Was this review helpful to you?

Caleb

Oxnard, ca

Overall
Durability
Value
Features
Design
Usability
Great KIT!Best BANG for your BUCK!

February 17, 2014

At first I was a little skeptical about the kit but once I got it turned out to be great. I installed it on a 02 cavalier and it fit perfectly, and for $50 for 0 gauge what else do you want.

Im currently running 3 amps in my car and this was definitely a great upgrade. Would defiantly recommend to anyone that's on a budget and wanting to do a BIG 3 upgrade.

59 of 118 found this helpful

Was this review helpful to you?

Trent

Dickson

Overall
Durability
Value
Features
Design
Usability
XS Power big 3 is great.

April 9, 2015

Didn't need a capacitor, stays @ 14.xx volts. Lights don't dim and I can play it sitting still. Def recommend.

15 of 31 found this helpful

Was this review helpful to you?

Tricky

South Holland, IL

Overall
Durability
Value
Features
Design
Usability
Great upgrade for price

May 24, 2014

Big 3 kit was easy to install and no more engine whine and dimming lights. Works great for the price.

40 of 81 found this helpful

Was this review helpful to you?

Wy

Orangeburg, SC

Overall
Durability
Value
Features
Design
Usability
Easy to install!

May 20, 2014

I installed these cables on a 2009 Chevy Silverado that the lights would dim when the base hit with the radio up to mid range...was told this would take care of the problem. No change really...my voltage will show more when I first start the truck but after 2 or 3 minutes it's back to where it started with the problem.

25 of 51 found this helpful

Was this review helpful to you?

chris

lakeland fp

Overall
Durability
Value
Features
Design
Usability
great price

April 5, 2015

It was exactly whay u wanted and need at the right price

12 of 26 found this helpful

Was this review helpful to you?

Jordan

Prairie City, IA

Overall
Durability
Value
Features
Design
Usability
the big 3 lol

June 10, 2014

The wire was so think that I balrey fit the thing in my 1/0awg wire inputs one the battery terminal adapter and to cut the wire I had to use a hack saw lol I could cut it by hand and but really flexibal so really pros and coins are even and hella useful if u don't want to or have the money for a bigger altinator

35 of 72 found this helpful

Was this review helpful to you?

Ross

oshkosh wi

Overall
Durability
Value
Features
Design
Usability
Big three

May 10, 2014

Was as described but half of the connectors came off during installation, luckily I needed to remove them anyways. Good price and did the job.

25 of 53 found this helpful

Was this review helpful to you?

TopDawg

Kansas City, KS

Overall
Durability
Value
Features
Design
Usability
Big Upgrade well needed

October 26, 2014

Bought this from there Ebay store and received it within two days. I installed this before I installed my bass amp and what a difference in my voltage. My voltage with my truck running before would stay at 13.3 to 13.9 with bass notes now with this kit voltage stays at 14.8 to 14.9 voltage never drops with bass notes. Use this kit with an alternator upgrade and/or battery upgrade ( I did both with 250AMP Alternator with two XS D3400 batteries). even my truck runs stronger with this upgrade.

43 of 90 found this helpful

Was this review helpful to you?

daniel

arvada, CO

Overall
Durability
Value
Features
Design
Usability
Big 3xp

September 7, 2014

Easy to install plenty of wire! Worked great fixing the headlight issue and added power all the way around in the car! I would recommend this to everyone!! Sonic was great fast delivery!!

24 of 52 found this helpful

Was this review helpful to you?

GARY

EULESS, TX

Overall
Durability
Value
Features
Design
Usability
Happy

January 27, 2014

I have 2005 Escalade with 4 RF 1800 watts a piece.And my lights looked as if I were flashing people.I purchased this kit,read how to install it ,it tookall of 45 minutes to do my voltage went from 12.9 to 14.5 and when im bassing drops to 11 or 12.No more blinking outside,but know my interiir lights blink?Over all im happy now that the correct grounds are in my vehicle
Gary,B Euless,Tx

44 of 92 found this helpful

Was this review helpful to you?

Ice

los Angeles

Overall
Durability
Value
Features
Design
Usability
Great product!

July 28, 2014

I have to say I was impressed with the wiring kit. It came with everything you need including instructions! This made installing the kit real easy, no guess work. The wires are the wires are 10% OFC and XS Power makes sure it makes up for not being 100% OFC by adding more strands. This is a great product and I highly recommend this to anyone who demands mass power distribution.

44 of 93 found this helpful

Was this review helpful to you?

zohan

ky

Overall
Durability
Value
Features
Design
Usability
xs big 3

April 11, 2014

Bought this and was very pleased. ..good thick heavy wire ....comes with connections already on so you dont have to fight with them to get them clamped your self

47 of 99 found this helpful

Was this review helpful to you?

Kong Pheng

Washougal, WA

Overall
Durability
Value
Features
Design
Usability
Big 3 means Big XS Power

March 4, 2015

Pros:

-All wires 1/0 gauge.
-Instruction were in there for placement of grounds
-2 Extra 1/0 Gauge Non insulated Right terminals
-Extra Shrink Wrap and Cable Management Mounts
-Price

Cons:

-CCA Wiring
-Wires were a bit long (See conclusion)

Conclusion:

The XS Power BIG3XP was a great addition to my car and any car. Since I run only 2000 rms I believe having CCA was a good choice since its only to supply power to the car batt and grounds. The wires was a bit long for my small subaru impreza but for any big SUV or Engine bay with alternator on the opposite side of the battery will be a good use. (This is a good thing) Because I did the big 4 upgrade the same time i changed to a HO Alternator and New Batt, I didn't see the affects of the dimming of lights or the drops in voltages. Over all this was definitely a great buy and a definite upgrade for those people who do not want to get their hands dirty crimp lugs and ring terminals together.

Side Note:

I took off the Shrink wrap to see the connection and the crimp was factory crimped but not soldered. I soldered all connection to get a better connection from them.

31 of 68 found this helpful

Was this review helpful to you?

mack

Canada

Overall
Durability
Value
Features
Design
Usability
Works great

March 8, 2014

Used this along with a 1700 watt brz-1700 and a 30 farad capacitor. Just what I needed. A little hard to get through the firewall but that's because I didn't want to drill any extra holes, so a little dry lube did the trick

44 of 95 found this helpful

Was this review helpful to you?

dmode7

CA

Overall
Durability
Value
Features
Design
Usability
The power booster

January 21, 2015

I just got through hooking up the big 3 to my car and install my system and let me to you that my power that I have is awesome and I have a 1 farad cap and well there is no use for that now my light as listed do not dim and my volt meter that I have install and match with my battery stays at 14.7vdc then a hour later it will stay at 14.5vdc and will not move with my 2 8's with my headlights on and ac running as well a great product to have, but the cons the zip ties are to small and not enough battary clamps as will.

40 of 90 found this helpful

Was this review helpful to you?

Scott

Myrtle Beach, SC

Overall
Durability
Value
Features
Design
Usability
Necessary upgrade for all!

May 18, 2014

Gained 3/4 of a volt over the stock wiring, and ended all dimming of my headlights in my stock silverado.

43 of 96 found this helpful

Was this review helpful to you?

tay

VA

Overall
Durability
Value
Features
Design
Usability
great wire

January 20, 2014

Great wire. I ordered this wire to use for my 2500 watt power inverter. Very fast shipping. Wire is very flexible.

45 of 100 found this helpful

Was this review helpful to you?

Browse 4 questions and 29 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
To upgrade my 250 amp high output alternator ....and you need the big 3 when you wanna have quality stereo ...you need to upgrade electrical components ....
justin p on Mar 30, 2015
The Big here the way to go Big Four even better the way I'm going. Heard xs power Big 3 xp is good stuff just wish I could've went with the 99.99 $ one the is OFC but money talks when on budget so I went 49.99$ will.be better then what the stock stuff is. Go big bass 2-12s 1-15 with 2 R4000D boss strapped pushing. Plus 300watt on highs and mids. go deaf or go home huh what u say man
Richard F on Mar 7, 2015
It's Awesome.....BIGGER Is Better
Monster on Mar 10, 2015
to help voltage flow smoothly
terry h on Feb 24, 2015
Do the wire end come already crimped and ready to install on this kit?
jason w on Dec 30, 2014
Best Answer: Note: there is plenty of wire to cut to your length. Then you must crimp and then heatshrink or tape the ends. I highly recommend and suggest that after crimping the terminals onto the wire, that you use heatshrink on the terminal and THEN electric tapr around for the best and tightest crimp. Careful not to crimp through the wire when applying the force needed to crimp the large terminals!
Reply · Report · Julian H on Dec 30, 2014
· Add Answer · I Have This Question Too (2)
I have a 3900 watts system not ''rms'' the 2 amps are from Audiopipe..a APCL-1800.D and a APCL-2004..what kind of Big Three you suggest for this kind of system that has a stock alternator ''110 amp'' should i go with the CCA or OFC wires?
A shopper on Jun 4, 2015
Best Answer: Hello,

At best, your system is providing 2400 watts RMS - that is assuming the Monoblock is running at 1ohm and the 4-Channel is running at 2ohms, which is pretty doubtful. Even still, at the lowest impedance (4ohm + 4ohm) your system is getting pretty close to 1200 watts RMS which puts you at the cusp of considering OFC .
Reply · Report · Rick MStaff on Jun 4, 2015
· Add Answer · I Have This Question Too (0)
What is the length of the power and ground cables?
A shopper on Apr 3, 2015
Best Answer: Hello,

The information you seek is in the description:

What's In The Box?
2 x 4' 1/0-gauge ground cables with ring terminals
1 x 6' 1/0-gauge power cable with ring terminals
10 x wire clamps
10 x screws
10 x zip ties
3 x additional ring terminals
Reply · Report · Rick MStaff on Apr 3, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

BIG3XP

UPC

692209051039

Weight

3.70lbs

Internal SKU

xsp-big3xp

Internal Product ID

74886

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: XS Power BIG3XP

  • XS Power Big 3 Upgrade Kits
  • Big 3 Upgrade Installation