B1 Tape Loop

[bassnkeys]

I would like to build another B1 as my main preamp. I built my first with a minimalist approach, no input switching and using a stepped attenuator... it is first rate. The sound compares favorably with the best I have ever had in my system.
Question:
I need a buffered tape loop, what is the easiest and best way to incorporate this complication?
I'm thinking of adding a duplicate B1 circuit fed from the input and obviously bypassing the attenuator. Am I missing a better approach?
Thanks,
Bass&Keys

 

[bassnkeys]

Attenuator Location in Circuit

To put it another way:
Does the attenuator have to be on the input side of the buffer?
Could I put it on the output side and take my buffered tape output just in front of it thus providing a line level out?

 

[Itsmee]

1, Put the tape buffer in parallel with the B1.
2, Put the tape buffer in front of the B1, this has the advantage of buffering the attenuator input.

I would try 1, listen, then try 2, to see which is preferred, if it's a minor difference, I'd stick with 2.