I too own several Boulder amps. 2x 500AE's 2x 100AE's and a single 250AE. They offer stunning performance and transparency. I wish the 100AE's could be bridged but thats the only complaint.
A word of caution. If you understake to replace the Roederstein Electrolytic Capacitors, do so buy carefully chopping them top down using a pair of wire cutters and a vacum. If you attempt to remove them in a conventional way by desoldering, chances are you will tear up the traces on pulling them out. The leads are too wide for the holes and eyelets in the PCB's. The traces are fine and very fragile. Boulder is aware of this problem and will caution you if asked.
A word of caution. If you understake to replace the Roederstein Electrolytic Capacitors, do so buy carefully chopping them top down using a pair of wire cutters and a vacum. If you attempt to remove them in a conventional way by desoldering, chances are you will tear up the traces on pulling them out. The leads are too wide for the holes and eyelets in the PCB's. The traces are fine and very fragile. Boulder is aware of this problem and will caution you if asked.