Class A, 6SN7 pre amp with zero feedback


Can someone recommend a Class A, 6SN7 pre amp with zero feedback, HexFred diodes and high quality caps???
tz7
You can order Cary SLP-98 that way (see for example Upscale Audio's options - no affiliation, just a happy customer). Not sure about SLP-05.
Atma-Sphere MP 1
Any reason for the 6SN7 requirement? There's a lot of great preamps that don't have the 6SN7 as the prime tube.
Cary's SLP-05 fits the bill, though sans HexFred - which can be DIY fitted. The SLP-05's off-board power supply with its rectifier tube is the icing on the cake.
Atma-Sphere MP 1
Any reason for the 6SN7 requirement? There's a lot of great preamps that don't have the 6SN7 as the prime tube.