Thankyou Julf, by raising the value does this mean we gain slightly more low frequency information?
If you’re unhappy with the 909 then find something else , the original is a stable amp. And a very good one too. This circuit as been going since around 81 , the 405/1 had limited drive . That was corrected soon after..my advice do not change /add any component unless it has failured or looks in distress. If you speak to Rob at quad, the number of modified units keeps their service guys/gals busy