Andrew Barta started Tech
21 with a product he originally designed for himself.
Being a constant tinkerer, there are times he is inspired
to build creations for his own enjoyment that are outside
the realm of being mass produced and commercially viable.
With the encouragement from a select few who have witnessed
some of these products, Andrew has decided to open the
door to his Private Stock.
Our Private Stock division will offer
a diverse range of products, the first of which is the
Vacuum Tube Bass Pre-Amp. Each product will be custom-designed
by Andrew, hand-built, tested and tweaked at our factory
in the United States, and available directly for purchase
on a per order basis.
If you are interested in these unique
and limited products, we recommend checking our website
periodically for updates.
Private
Stock Vacuum Tube Bass Pre-Amp
Andrew Barta created this because he was curious how
the SansAmpBass Driver would sound if he made it with
tubes.It was an interesting and challenging project
because certain tasks had to be accomplished in completely
different ways.
Striving to capture the functionality and basic nature
of the SansAmp Bass Driver, Andrew ended up with a product
that is unique on its own with old-school analog, vintage
sound.
For bass, in particular, most of the tone traditionally comes from the pre-amp stage of a
bass amp.Therefore, you have a lightweight tube-driven pre-amp and the flexibility to
choose the power amp and wattage that best suits your needs.
| Here’s a rundown of the controls and features: |
| • |
All tube circuitrywith 12AX7 low noise, hand selected tubes. |
| • |
Solid oak cabinetenclosure with a mahogany red satin finish. |
| • |
3-band EQ. Follows the concept of the SansAmp Bass Driver, but being tube-based, they
are passive controls --cutting up to approx.6dB. |
| • |
Presence.This is the only active tone control, in the 2.5kHz range, and is capable of
boosting approx.6dB. |
| • |
Drive. Determines the amount of drive.Gives you a saturated pre-amp tube sound with
warm distortion in higher settings. |
| • |
Character switch. Proprietary formula filter that warms up the bass, giving more bottom
and more top end.Disengaged, you get a more neutral, “Jaco-style”sound. |
| • |
Bright switch. Gives you a broader range of treble and works in conjunction with the
Drive control.As you increase Drive, bright becomes less active.With a lower Drive setting,
the bright is more pronounced. |
| • |
1 megOhm Input. For active basses, you can compensate the sensitivity by decreasing
the Drive setting to eliminate any unwanted distortion. |
| • |
1/4-inch output. |
| • |
XLR Output. Switchable line/instrument level to run direct to mixing console. |
| • |
Ground lift. |
| • |
Approx.weight: 12 lbs. |
|
