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Modular Amps
Jaded Faith Mods
Public Service Announcement for all RM1250 owners
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<blockquote data-quote="Jaded Faith" data-source="post: 130807" data-attributes="member: 1068"><p>Last Friday while loading out for the NY Amp Show, it occurred to me that I had not upgraded my RM1250's with Foglifters. Since it was a new product that needed to be exposed, it made sense to stop and mod both really quickly.</p><p></p><p>I made and interesting discovery once inside. There was a mistake in the assembly of the RM1250 Presence/Density PCB's that seems to impact every one of them (I have 3 and it was present in all). The Presence and Density pots are switched, meaning the pot in the Presence position should be in the Density spot and vice-versa. The schematic shows the design to be correct, it was an oversight in assembly and QC.</p><p></p><p>This has a HUGE impact on the tone and feel of the power section and completely explains the complaints folks have had about it. Even without a Foglifter, simply swapping these two pots is a massive improvement that was startling when A/B-ing them.</p><p></p><p>I did not design a Foglifter for the RM1250 because the demand wouldn't justify producing them. I can certainly upgrade and correct your existing PCB's and have them sent back the same day they arrive. Email if interested.</p></blockquote><p></p>
[QUOTE="Jaded Faith, post: 130807, member: 1068"] Last Friday while loading out for the NY Amp Show, it occurred to me that I had not upgraded my RM1250's with Foglifters. Since it was a new product that needed to be exposed, it made sense to stop and mod both really quickly. I made and interesting discovery once inside. There was a mistake in the assembly of the RM1250 Presence/Density PCB's that seems to impact every one of them (I have 3 and it was present in all). The Presence and Density pots are switched, meaning the pot in the Presence position should be in the Density spot and vice-versa. The schematic shows the design to be correct, it was an oversight in assembly and QC. This has a HUGE impact on the tone and feel of the power section and completely explains the complaints folks have had about it. Even without a Foglifter, simply swapping these two pots is a massive improvement that was startling when A/B-ing them. I did not design a Foglifter for the RM1250 because the demand wouldn't justify producing them. I can certainly upgrade and correct your existing PCB's and have them sent back the same day they arrive. Email if interested. [/QUOTE]
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Modular Amps
Jaded Faith Mods
Public Service Announcement for all RM1250 owners
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