BGW Power Amplifier

[Fabio75]

Hello, I'm looking for a friend who is an expert in BGW power amps.
In particular, I would like you to help me understand the differences between the various BGW 750 series /A/B/C/D) and the BGW GTA/GTB type.

Thank you

 

[Dswankey]

The company still has a website so there is a possibility that their support department might be able able to provide you with info from their archives.

https://bgw.com/

You could also try here too

https://www.hifiengine.com/manual_library/bgw/750.shtml

https://www.google.com/search?q=bgw...HYKaDZkQrQIoBHoECB8QBQ&biw=1280&bih=621&dpr=1

 

[bowtie427ss]

The difference between GTA and GTB is fairly simple. They are essentially the same amplifier with the GTA having twice the power supply in a dual mono configuration.

I posted this image with the amplifier modules removed from one of my GTA's many years ago, it free ranges the interwebs now.

 

[Fabio75]

Thanks a lot.
I have an Amcron Psa2 for my Infinity Kappa 8. In your opinion BGW Is Better than this ?

 

[martin2395]

If someone is interested, This is how a power module of a GTA/GTB looks like. It has 12 big Sanken MT-200 output transistors.
The modules are interchangeable between channels, all it takes is 4 screws and unplugging 2 connectors.

Do they have any DC protection I wonder, there are no mechanical relays inside but the amplifier seems to have some kind of solid state muting.