Certainly, the gain structure in my amplifier requires a full line level signal and the transformer output was slightly insufficient. I went over to Ian's OPA861 output stage for this reason.
Thanks for answer, please let us know the ratio to know the gain because web said can have different ratios so custom for client needs.
To be honest I do not recall the ratio. If I recall correctly the D60 was for the I/V stage of the Ian Canada DM9038Q2MPi DAC which is what I ordered them for. His link on this forum: https://www.diyaudio.com/community/threads/output-transformers-for-dacs.327794/