Mission 778X what amp chip?

[rabbitz]

The Mission 778X is based around the design of the Quad Vena II and Leak Stereo 130 which both use the LM3886 as far as I know. Looking at internal pics I can see 6 forward pins on those two but the 778X has 8 forward pins so maybe a TDA7293? Specifications are similar for all the amps and are made in the same IAG factory. I assume when the 778X was designed, the LM3886 supply issues came into play.

I can't see enough through the vent holes and as it's new I do not want to remove the cover as well I do not have a Torx bit small enough.

 

[ohdsp]

I would encourage you to open it up and take internal photos....Would like to see the internals up close, especially what chip is actually used!

 

[rabbitz]

Maybe in the distant future.

 

[Puffin]

Both the LM3886 and 3876 have 11 pins. The ones in the Quad have 10 pins and the 778 has 8 pins. Check that my eyes are not deceiving me, but it seems these are not LM3886. The chip in the Leak has 11 pins so it could be a 3886/3876.

 

[abraxalito]

778x has 8 pins in the outer row, 7 in the inner row. Likely a TDA729x.

 

[rabbitz]

Read somewhere that the Quad uses the LM3886. It has 6 forward pins and a total of 11 pins.