Sub 37 buy used - serial number Keybed and filter

[SynthWizard]

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Sub 37 buy used - serial number Keybed and filter

<!-- SC_OFF --><div class="md"><p>So I might buy an used Sub 37. I know they have changed the filter knob at some point and also the keybed if I understood that right. People are writing that you could somehow check if you have the serial number, but I can’t find any information about which serial numbers would have the old filter-knob and when the new keybed was introduced.</p> <p>Can someone help / or knows how to check this?</p> </div><!-- SC_ON --> submitted by <a href="https://www.reddit.com/user/lqlwle"> /u/lqlwle </a> <br/> <span><a href="https://www.reddit.com/r/synthesizers/comments/zpq3m8/sub_37_buy_used_serial_number_keybed_and_filter/">[link]</a></span> <span><a href="https://www.reddit.com/r/synthesizers/comments/zpq3m8/sub_37_buy_used_serial_number_keybed_and_filter/">[comments]</a></span>