Gc + Frs 8

[jemraid]

I am going to build a pair of Cyburg's Needles with the Visaton FRS 8 drivers.

There are two versions of the driver one 4 Ohm and one 8 Ohm, the 4 Ohm one has got a higher QTS making it more suitable for the Needle.

I'm sure I have read that an inverted LM3875 GC is suitable for a 4 Ohm load but would like to check.

Would be grateful for any help.

Regards - Jem

 

[G4ME]

just as long as you don't exceed the current output limit. Which means a transformer of around 18-20V

 

[carlosfm]

An LM3886 would be better.

 

[G4ME]

as it allows higher current output

 

[jemraid]

Dear Carlosfm and G4ME,

I think I'll buy the 8 Ohm version I don't want to blow me lovely amp up.

Thanks for the advice

Jem

 

[G4ME]

you will be fine with the 3886, its rated for 4 ohms even with a tranny of 25V. Heck you could still use the 3875 with 25v tranny, i just wouldn't crank it to 11.