Opus has good feedback on AGon.
I know you are looking for a pre but this Manley amp is very cool. Disclaimer, I own a pair of Manley monoblocks and have owned various VTL Manley signature amps.
https://www.usaudiomart.com/details/650190656-manley-stingray-manley-installed-updatesmods-gold-lion-el-84s-12at7s/
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International GT Champion; Porsche GT3 Cup Trophy Champion; Klub Sport Challenge Champion; Rolex Vintage Endurance Series Champion; PCA Club Racing Champion; National Vintage Racing Champion
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