2. amps-preamps
  3. 1272732070

Shindo Monbrison balance issue?

hi

anyone experienced this with their Monbrison (or other Shindo preamps)?

When playing at low volume, the sound is biased towards one side but once the volume is turned up, the level seems to balance itself...... i discovered this when I was burning in my set at low volume and when vocals are played - the voice will "shift" from one side to center as the volume is increased!

I have swapped the interconnects (left -right) going into and then out of the Monbrison to check if source or power amp could be the problem but the results seem to confirm that it is the Monbrison.

Another issue that I encountered accidentally was when playing cd and switching the input selector to other inputs, I can hear the music albeit at very low levels throught the speakers!! is this normal?

aside from these two worrying discoveries, the Monbrison sounds great!

thanking you in advance for your feedback.

best regards
fudgeo

Showing 1 response by intrust

intrust's avatar
intrust
1 posts
 
Hi, I am using the Shindo Monbrison preamplifier (the older version designed by Ken Shindo)

I remove the tubes to clean preamplifier and now I cannot remember the position of the 2 pieces of 12AU7 and  2 pieces of 12AT7. Please help me. Viewing the amplifier from the front on the right hand side there are two tubes one top and one bottom. Is the top tube 12AU7 and bottom tube 12AT7? Moving to the back (right hand side of the preamp) there are also two tubes one on left and one on right. Is the left tube 12AU7 and right tube 12AT7??

Can anyone out there help me.

Regards,

KW Chai
More to discover