btwatts92

I have pioneer in all four doors in my truck with two 12 inch pioneers and it sound great

Warspite

I have 5x7 Sony Xplods in the doors, and Rockford Fosgate Prime 6x8 in the rears. The RFs are much better - however, Crutchfield recommends the Infinitys and the Polks as some of the members have here. I got the RFs for only $45 for the pair!

raduque

I got a set of these and they sound great. I plan on moving them to my rear doors (running Ford OEMs back there) and installing a set of Prime R152-s components in the front doors. I need a new amp to power it all, my current one is going out. I'm thinking an Alpine MRP-F300.

Mugs22

I just picked up a pair of these for the rears and Infinity Reference 6830cs components for the front. At the moment, I have the rear ones installed and it sounds amazing with the front speakers turned off (running off of only the stock HU). Can't wait til I get the components installed in the front doors! A lot of people said that there wouldn't be much of a difference in bass but I could tell a huge difference with only rear speakers running! I'm waiting on speaker baffles to put in to 'seal off' the empty door space and give the speaker a more defined air space which should make it even better.
I picked up the two sets (6832cf and 6830cs) from Amazon and two sets of speaker wire adapters off eBay all for $180 shipped. Will let you know what I think of all speakers installed and the baffles in here in about a week or so.

Guinness68

I just received:
Infinity Kappa 682.9cf

Got 2 pair for about $200. Haven't installed yet, but I'm definitely looking forward to them.

Box says they are 2ohm.

Crutchfield says this: "True Four Ohm Impedance technology: speaker's 2-ohm impedance combines with speaker wire impedance for a 4-ohm load"

We normally count wire impedance?

JoeBoost

The quick answer is yes. The long answer is " it depends" on what level of efficiency you are trying to build into your system. As we know the amount of impedance speaker wire introduces is based on gauge and length. In theory a larger gauge wire with less resistance should maximize power delivery from your amp to speakers resulting in less strain on your amp and more "control" over your speakers. Control (damping factor) is the ability of the amp to manage the speaker motor (cone throw in/out). This is a basic description and there is allot more to this that far exceeds my knowledge.

Allot of high end SQ installers use 12-14ga wire OF EQUAL LENGTH for all speaker interconnects to eliminate any inconsistencies in signal path. They also greatly overpower the speakers to improve control. I use 14ga but don't go as far as to make sure they are all equal length.

What Infinity is doing is taking these basic principles into consideration for you by building a 2ohm speaker that in most cases will be installed into a factory system using (18-22ga) to get the 4ohm load.

Guinness68

Good info... Thanks.

I'll be using 12ga, but I didn't order enough to make it equal length for all four spots.

JoeBoost

From what I have read 16ga introduces no significant loss under 50' so that would be the minimum I would use. I happened to get a deal on some 14ga so went with it. 12ga is beefy - its what I am using on my subs. You could save yourself some $ and run with 14 or 16 for doors but if you already committed to 12 roll with it - Im all about excessive

SteveZimmerman

Ok I got a question for you guys. Since I can't figure out how to start a new thread for the life of me.
I got a jvc radio that's amplified by a Sony 4 channel. I have rockford fosgate punch speakers all the way around. Then I have 2 10" subs in the back with a 1500watt amp powering them. I've had no problems with it for about 3 months. The other day my whole left side just started making a high pitched whining noise. It all still works fine. Sound still comes through the speaker etc... But when I turn the volume up to 35 or higher it sounds terrible. Now, if I turn my blinker or headlights on or off or put my window up and down the pitch of the whining noise changes. What is going on???

Wyo11Scab

iTrader: (1)

Sounds like the Sony amp is picking up alternator noise. Check your ground first. Your amp could be going out also.