Sequential has announced that the first of their Prophet 5 & 10 Rev 4 synthesizers have a hardware flaw that make them slightly duller in the high end than vintage Prophets.
Creator Dave Smith say he did not notice the issue when he tested the first production unit, because his ears are ‘lacking in the high end’ after too many rock concerts in the ’60s.
The company says that they’ve identified the error and will swap the affected circuit board or swap entire units at no cost to owners – ‘whatever is required to make things right’.
Here’s the text of Smith’s announcement:
“Prophet 5 / Prophet 10 hardware tweak
As some users have noticed, there is a drop in high frequencies on the current units in the field. I checked into it yesterday, and I’m highly embarrassed to say that we screwed up. Short story is there are some capacitors that were not meant to be installed, but did in fact get installed, causing the frequency drop.
A fair question would be “how did we not notice this?” This turns out to be due to my ears lacking any high end; too many Yardbirds, Who, Cream etc. concerts in the ‘60s. I picked up serial #1 on October 1st, and it sounded great to me! Since then, we’ve shipped every unit we’ve made because we have a huge backlog. And, with everyone working at home due to the pandemic, no one else played a production unit except me.
Those are just excuses; the real issue is that units in the field need to be corrected. Fortunately, it’s a fairly easy mod if you have access to a soldering iron, or a service center nearby. Two capacitors need to be removed; that’s it.
We will happily swap boards if that is preferred, or swap entire units. We will do whatever is required to make things right.
This affects serial numbers 1 to 195 on Prophet 5s, and 1 to 159 on Prophet 10s.
I owe everyone a deep apology for this; it’s not how we normally work, and I’m really sorry this fell through the cracks. Thank you for your understanding.