Preamplifiers: Solid state

NameNotesRetailAverage
Basictransformer, 1 lb
Premiumtransformer, 1 lb
Transformerphono transformer

Preamplifiers: Tube

NameNotesRetailAverage
K&K Audio Sonus Veritas Beta 6H30 "supertube", transformer-coupled, differential gain stage preamp
Mood Indigo6 inputs, 20 lbs
Raleigh Extreme Differential Preamplifier V. III
Sonus Veritas Beta 6H30