martin logan sequel

how much should i charge for my martin logan sequel speakers in 9 out 10 shape

how Old your sequel?
Sequel 1 or Sequel 2?

Sequel 2 recent sale

Sold for $850 , MSRP in 1989 was $2995…

1987 vintage is a 30 year old offering, so rating them a 9 out of 10 will trigger potential buyer skeptism 
If you look at the AudiogoN listing above, the speakers did not sell, the posting expired.
I sold my pair for 850.00. I constantly vacuumed the panels also.