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Agreed.
I have a 400-12 Hi drive built by Carl at x-force, it is the same as the Magna force 600 or TnT 600HD, all 4 2979`s with a class b bias set-up
They pad the hell out of then input so it can soak up a lot of drive, but IMO 2 X 2290`s is still excessive.
A good dual final radio will drive 4 2879`s to full output.
The Guys that run hi voltage in mobile set-ups love this style amp because they drive the snot out of them at 17/18/19/20 volts and see huge numbers.......
If you keep the drive down, and run them at @14 volts they are fine.
Just do not expect a KW out of 4 2879`s.

73
Jeff

[QUOTE="AudioShockwav, post: 387989, member: 6"] Agreed. I have a 400-12 Hi drive built by Carl at x-force, it is the same as the Magna force 600 or TnT 600HD, all 4 2979`s with a class b bias set-up They pad the hell out of then input so it can soak up a lot of drive, but IMO 2 X 2290`s is still excessive. A good dual final radio will drive 4 2879`s to full output. The Guys that run hi voltage in mobile set-ups love this style amp because they drive the snot out of them at 17/18/19/20 volts and see huge numbers....... If you keep the drive down, and run them at @14 volts they are fine. Just do not expect a KW out of 4 2879`s. 73 Jeff [/QUOTE]

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