2. amps-preamps
  3. 193044-189732

Krell FPB 700CX

Krell FPB 700 CX wanting to use tube preamp. Jumpers are advised with caps being engaged due to "potential" DC. Based on the pics attached, the jumper above labeled JMP1 for tube preamps? Purchased used and Krell is under restructuring. Any help appreciated. Thank You.

 

https://postimg.cc/WFmQT0YG

https://postimg.cc/bd87LFd3

ossidian5

Showing 3 responses by invalid

invalid
1,266 posts
 

What tube preamp are you going to use with the Krell amplifier?

invalid
1,266 posts
 

I wonder why Krell went back to using the jumpers, my ksa 300s doesn't have them, but the KSA 250 does. I've never had a problem running a tube preamp with my Krell amp without caps on the input, but I always turn the preamp on a few minutes before the amp. 

invalid
1,266 posts
 

@ossidian5  the reason I asked what tube preamp you have is because some tube preamps are transformer coupled which would be the ultimate DC protection.

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