Cayin 9084d owners - Help!


Hello all. I have just ‘dipped my toe’ for the first time in Single Ended Triode territory & bought a used pair of Cayin 9084d monoblocks. First things first, my 9084ds did not come with a user manual so  I am appealing to any 9084d users out there who may be able to help? I just want to check the procedure on how to adjust the bias for the 845 & 300B tubes. Any help will be much appreciated

For those interested in my journey into tubes, I have been a solid state user (Krell then Pass XA100.5) but a stint with a Cayin A88T persuaded me to delve deeper into tubes. My speakers are Von Schweikert VR-33s (90db efficiency) so I decided to go for these 9084d monblocks which with 300B & 845 power tubes provides 28 SET watts, which should be adequate for my speakers (my Cayin A88T on Triode mode with its 28watts drove my VR-33 fine). If anyone is interested in my journey into SET territory, I can update later as I get the 9084ds set up and running.


solentgreen

Showing 1 response by solentgreen

Thanks freediver for responding; and apologies for delay to revert.

My unit is a Mk 1. Each monoblock has a rocker switch with On/Off positions & an adjustment screw next to the 300B tube.  On the front panel, there is a meter marked in mA with a range from 0 to 100.  But no indication as to which mA level is the optimum level.
Also, I was wondering if the 845 tube need bias adjustments & if so, how that can be done.  Thanks.