VTV AMPLIFIER Stereo Purifi Audio 1ET400A Amplifier with VTV Vacuum Tube Buffer


SKU: 27564-1 Category:


“Fans of valvular verity will absolutely love the richness and body of the VTV’s midrange and will feel right at home with the impressive height and depth of the very palpable soundstage…….I consider this amplifier a can’t lose value!” 

—Stu McCreary, Positive-Feedback 2020 Writer’s Choice Award

NEW Stereo VTV Amplifier with Purifi-Audio 1ET400A modules and VTV Custom Vacuum Tube Buffers

Designed by Andrew Sparks of Sparkos Labs, the VTV Vacuum Tube Buffer features a direct coupled dual triode driving a four transistor Wilson current mirror.  The output of the current mirror feeds an I to V converter stage featuring the Sparkos 3602 dual discrete opamp as standard.   The board is compatible with almost any dual (or two single) opamps.  There are NO capacitors in the signal path.

See Purifi-Audio DATASHEET here.

VTV Purifi Manual here


This is a brand new amplifier featuring:


—Vacuum Tube Buffer using 6922 vacuum tube….rich sound and full sound that delivers warm tube sonics.


—Hypex SMPS1200A400 power supply (this is the power supply used by Purifi to demo their modules)

—fully balanced design

—EMI/RFI filtered AC inlet

—MOGAMI input wiring standard


—Heavy, custom designed aluminum case with blue LED pilot.  (LED may be dimmed or shut-off by switch)

—Silver-coated speaker output wiring with TFE jacket

—2 Year Warranty

–12.25″W x 13″D (not including speaker posts) x 4.25″H  W:14 lbs

Additional information

12V Trigger



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