rontoolsie
pfm Member
So a friend of mine is running a pair of non-DR 200s, using one per channel in the pseudomonoblock mode.
He is about to get the recapped as they are quite old at this point.
I started thinking if this may be a good opportunity to take them into a true-monoblock configuration.
I THINK there are separate transformer windings per channel....if this is the case, would it be possible to double them up on the used channel? If so, does that mean that the voltages in the windings need to be carefully trimmed (and if so, to what tolerance to each other?)
I think disconnecting the internal preamp supply may also be a good idea as he is using a 252, and does not need the 200s to provide a +24 out.
Or maybe just junk the internal power supply and replace it with a Mini-cap6 or something??
There is some je ne sais quoi quality about the non-regulated amps that seems to be lacking in the (?over)regulated amps. A cardinal example is the 160 vs the 250 for instance.
He is about to get the recapped as they are quite old at this point.
I started thinking if this may be a good opportunity to take them into a true-monoblock configuration.
I THINK there are separate transformer windings per channel....if this is the case, would it be possible to double them up on the used channel? If so, does that mean that the voltages in the windings need to be carefully trimmed (and if so, to what tolerance to each other?)
I think disconnecting the internal preamp supply may also be a good idea as he is using a 252, and does not need the 200s to provide a +24 out.
Or maybe just junk the internal power supply and replace it with a Mini-cap6 or something??
There is some je ne sais quoi quality about the non-regulated amps that seems to be lacking in the (?over)regulated amps. A cardinal example is the 160 vs the 250 for instance.