3questions

[SOUNDz 10+ year member]

is there a big difference in output power if u have an rf amp that tests out at 15.1v, 944w at 54% efficiency, and one at 14.5v, 998w at 58% efficiency? amp is 750x. is 77% efficiency good for a rf class d amp? what is considered a decent %, like 70 and up? please answer in detail if u can. thanx.

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[Woodmister 10+ year member]

1. Most car systems usually dont put out over 14.5volts

2. The amp thats rated @ 14.5v and is 998Watts will put out more of the 2

3. A/B amps usually have an effic. of 60% and above, D Class is 80% and above, then you got your T Class which is said to be 90% efficient

 

[avistar23 10+ year member]

i concur. in 10 years we will be like well z class is 99% efficent.

The average car has a voltage of aobut 13.8-14.4 v