Monoblock VTV Amplifier with HYPEX NCx500OEM module and VTV Custom Vacuum Tube Buffer

The NCx500OEM is a significantly more powerful module than base Purifi.  Fans of Magnepans and B&W benefit from the extra current delivered from the NCx500OEM.

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 Hypex NCx500OEM DATASHEET here.

ASSEMBLED IN THE USA — 30 Day Trial

This is a brand new amplifier featuring:

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

—Monoblock features 10% more power than stereo configuration

—Hypex SMPS1200A700 power supply (this is the 90V rail PS)

—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

Monoblock VTV Amplifier with HYPEX NC500OEM module and VTV Custom Vacuum Tube Buffer

The NC500OEM is a significantly more powerful module than base Purifi.  Fans of Magnepans and B&W benefit from the extra current delivered from the NC500OEM.

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 Hypex NC500OEM DATASHEET here.

ASSEMBLED IN THE USA — 30 Day Trial

This is a brand new amplifier featuring:

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

—Monoblock features 10% more power than stereo configuration

—Hypex SMPS1200A400 power supply (this is the 90V rail PS)

—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

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

NEW Mono VTV Amplifier with Hypex NC1200 module and VTV Custom Vacuum Tube Buffer

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.  Highest quality Sparkos voltage regulators on board.

Hypex NC1200 module DATASHEET here.

ASSEMBLED IN THE USA — 30 Day Trial

This is a brand new amplifier featuring:

—Vacuum Tube Buffer using 6922 vacuum tube….rich sound and full sound that delivers warm tube sonics.  Board supplied with new Genalex Gold Lion 6922

—Hypex SMPS1200A700 power supply

—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

“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

Monoblock VTV Amplifier with Purifi-Audio 1ET400A module and VTV Custom Vacuum Tube Buffer

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

ASSEMBLED IN THE USA — 30 Day Trial

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

“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!”

Designed by Andrew Sparks of Sparkos labs, the 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 a discrete opamp (of your choice).   The board is compatible with almost any dual (or two single) opamps.

There are NO capacitors in the signal path.

The VTV Tube Buffer is compatible with all NCore and Purifi models and installs just like the standard VTV Custom Buffer.

Features:

–Fully powered by the SMPS Power supply.

–Accepts 6922, 6DJ8 or E88C vacuum tube.  Opamp choice is also flexible.

–Board includes Genalex Gold Lion 6922 Gold Pin tube

–High-end Sparkos low noise 15V regulators.  Vast improvement in noise over standard 7815 and 7915 in the stock Hypex/Purifi buffers

–Board form-factor makes it possible to upgrade existing Hypex or VTV Custom buffers.

–Dimensions:  3.15″wide x 4.415″long.   Ht with tube on 10mm standoffs: 2-3/4″

Priced as single channel board, two needed for stereo operation.

Please contact me with any questions!