Sumo 9 Power Amp - Input Impedance?

[pmt]

I have an old Sumo 9 power amp, purchased new in the early 1980s. Does anyone know the input impedance on this amp?

Thanks in advance.

 

[llwhtt]

1 Meg.

Craig

 

[edoherty1]

I am looking for a drawning for this amp Sumo Nine can you help?
Ed Doherty
edoherty@cableone.net

 

[llwhtt]

There are three different versions or I should say I have schematics for three versions. The first one is just SUMO NINE, the second two are NINE+. Determining which of the +s you will need to see what type of output transistors it uses. The first + uses 2SC1831s and the second uses 2SD555s. I have the NINE schematic loaded up and ready to go, the NINE+s I'll have to do some digging. I have tons of schematics in no particular order, unfortunately.

Craig

 

[edoherty1]

Sumo Nine

Thanks for the info could you send this drawing of the Sumo Nine amp that you have ready to send.
edoherty@cableone.net
Thanks a lot
Ed Doherty
let me know what you think of this amp or any of the others that you have. Sound Quality