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What amp

dx31353

Active Member
Mar 5, 2014
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I have a cobra 29. Peaked tuned. 4 w dk 24 w peak.

Should I get a four pill or a 1x4?

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I have a cobra 29. Peaked tuned. 4 w dk 24 w peak.

Should I get a four pill or a 1x4?



Unless you intend to have a variable installed, and run a meter to keep an eye on levels; don't get a 1x4...they are very touchy on input.

A straight 4-pill is a whole lot more forgiving...
 
Get a decent amp. Like the jerk posted, go with a straight 4 pill. It will not be overdriven by the radio and if you do ever decide to upgrade your radio, you already have a good amp. I would look at the newer TNT 600HD. Straight 4 pill. Biased b and has pre amp and ssb delay. They are made by xforce. Good amps. Seem to be made well and have heard nothing but good comments about them. JMO. God bless and good luck.
 
What antenna are you using? What are you trying to achieve by adding power?

A predator 10k. I'm looking to replace my Texas. Get out ofc.

Thanks for the other replies also. I was worried my radio would over drive a 1x4 but wanted to ask.

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You could have the radio turned down some and run a 1x4, but with a straight 4 pill you will have more options in the future. The radio bug always seems to bite and you will want another radio. At least with a good 4 pill you could get a high power export and use it as well. I would look into the following manufacture of amps. Dave made or xforce. Or have a custom box built by an good amp builder. again this is JMO. Have a look at the TNT 600hd.
 
You could have the radio turned down some and run a 1x4, but with a straight 4 pill you will have more options in the future. The radio bug always seems to bite and you will want another radio. At least with a good 4 pill you could get a high power export and use it as well. I would look into the following manufacture of amps. Dave made or xforce. Or have a custom box built by an good amp builder. again this is JMO. Have a look at the TNT 600hd.

Thanks ill check it out.

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What I found is that these newer cars have the voltage controlled by temperature. The voltage will change greatly from day to day, which obviously affects the power output of the radio that in turn drives the amp. The current truck I own (a 2012 Silverado) will charge anywhere from 13.8VDC to 15.1VDC (as read from an external volt meter) from day to day, and is considered normal. What I found was that I was continually adjusting the dead key for these voltage changes with the radio's variable...it was definitely not a set and forget deal. I've seen instances where I set a dead key that was perfect the night before, and grossly too high the very next day (that was a Uniden 76 running into a FatBoy 1x4).

While some amp/radio combinations could safely have the dead key turned down in the radio, I personally wouldn't try that with a driven amplifier (e.g. 1x4, 1x2, 2x4, etc.).
 
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Unless you intend to have a variable installed, and run a meter to keep an eye on levels; don't get a 1x4...they are very touchy on input.

A straight 4-pill is a whole lot more forgiving...


If you think a 1x4 is touchy, try a 2x4. A 2x4 is the mother of all touchy amplifiers.
 
If run within their limits, they are not any worse than any other amp...

The problem is that they easily become unstable, often there is no shielding whatsoever between the drive stage and the final transistors, even more often they are built as class c competition amps.
They eat more current for what you get out of them.


73
Jeff
 

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