Studio Projects VTB1

Single-Channel Solid State Microphone Preamplifier with Tube Blend
Studio Projects VTB1 image 1
Studio Projects VTB1 image 1
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Studio Projects VTB1
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Incredibly Affordable Single-Channel Mic Preamp!

The new Studio Projects VTB1 is the ultimate in low cost mic preamplifier technology. Incorporating true Class A/B switching, the VTB1 is a totally discrete circuit. Unique to the VTB1 is the "Tube Drive". The Tube Drive is a variable drive to a 12AX7, that allows the user to blend as little, or as much of the Tube Drive they want. This VTB1 allows the user the most flexibility of any mic preamplifier in it's price class.

Studio Projects VTB1 Applications:
  • A superb vocal mic pre
  • Great for use as a Tube DI Box
  • Great for production, broadcast, and voice over work
  • Perfect for the professional and home project studio
  • A quality vocal mic preamplifier suitable for all vocal styles

The VTB1 allows you to go from a pristine solid state sound, to any combination of Tube Drive you choose - even hard distortion for guitars and bass! The VTB1 is must have device as the perfect mic preamplifier for any microphone!

Studio Projects VTB1 Features:
  • 48 Volt Phantom Power
  • Phase Reverse
  • Variable Input Gain Control On Detented Pot
  • 1/4" D.I. Jack On Front Panel
  • High Pass Filter
  • Descrete Solid State Class A/B Design
  • TRSInsert
  • Mic/Line Switch
  • VariableTube Blend On Detented Pot
  • Meter Read Select Between Input and Output level
  • Switchable Impedance between 50/200 Ohm
  • 5 position LED metering
  • XLR mic input
  • Balanced outputs on XLR and 1/4"
  • External AC Power Supply For extreme Low Noise Operation
  • Output Gain Control On Detented Pot

Additional Media

Studio Preamp Buying Guide

Tech Specs

Preamp Type Hybrid
Number of Channels 1
Frequency Response 20Hz-20kHz
Phantom Power Yes
Analog Inputs 1 x XLR (Mic), 1 x 1/4" (Hi-Z)
Analog Outputs 1 x XLR, 1 x 1/4"
Channel Inserts Yes
Manufacturer Part Number VTB1

Customer Reviews

Based on 21 reviews
Write your review

Great little pre

Very versatile little preamp. Lots of headroom. Bright and clear. Used with Rode NT1 and sE-X1 mics as well as many others everything sounds great. This is my go-to bass DI box. Dial in a little tube drive on it and this will cover just about any electric bass tone you could want. If you're thinking about this one, just do yourself a favor and get it.
Music background: Pro engineer for over 12yrs.

Very Solid Construction and Sound!

The first thing I noticed when I pulled it out of the box was the solid construction. Well built and doesn't feel like cheap plastic as some others tend to. I use this with my toneport UX2 and AKG perception 200 mic, and it really gives a great boost in tone and volume. Very quiet as well. Excellent value for this price range.
Music background: Hobbyist

Very Valuable Mic Pre at a Very Reasonable Price

I just got the mic on 4/25/08, and I'm already in love with the sound that's generated from it. I recommend this mic pre to any and every one.
Music background: Producer, Recording Engineer, Mixing Engineer, Student, Etc.....

Best tube pre for the $$$$$

I can't believe a $120 sound good as some of the $1000 + pres I have used to record acoustic guitar, voice etc.. This is the way it should be. Everything priced cheap and not a mortgage payment. Jeez. A freind told me this was a deal and he was right. And my ears believe it. Put a vintage tube in it..and it will sound even better..
Music background: cow bell professional


I couldn't believe the vocals I got out of this $130 pre. They put all the money into the circutry on this one. If you're thinking about it, buy it.
Music background: Recording Engineer and Pro Musician
See also: Studio Projects, Studio Projects Preamps