Signal Processing
Tube MP
The Original

The Tube MP is the world's most popular external tube microphone preamp. Whether you're working with a digital, computer or analog recording system, the Tube MP's TEC award nominated design will allow you to obtain professional recording studio results at a fraction of the cost of comparable equipment. The hybrid design of the Tube MP allows it to add warmth and fatness to a signal while maintaining exceptionally low-noise and high quality. While its primary application is to be used with a microphone, the Tube MP is an exceptional direct box - impedance matching, amplifying and improving the sound of any instrument plugged into it.

The usage of external mic/line preamps has become increasingly popular over the past several years. The Tube MP offers superior performance and sound quality to the "on-board" preamps found in today's low-cost mixers and multi-trackers. It's sound has been consistently favored over other products costing upwards to ten-times its price. Professional quality sound combined with professional features like: a hand-selected 12AX7a tube, phantom power and phase reverse are what have made the Tube MP a staple in thousands of studios worldwide. For a minimal investment, a Tube MP can provide the single largest improvement to the sound of your studio.

  • Provides Superior Preamplification for: Microphones, Instruments and Line Level Sources
  • Hand Selected 12AX7a Provides 70dB of Gain Smooth, Warm and Fat Sound Quality
  • Variable Input and Output Gain Controls
  • Excellent as a Tube DI
  • XLR and 1/4" Inputs and Outputs +48 volts
  • Phantom Power
  • Phase Reversal Switch
  • Superior Sonic Performance to On-Board Preamps
  • TEC-Award Nominated Design
  • Portable, All Steel Construction
  • 1 Year Warranty

Please click here for a .pdf version of the spec sheet.

Frequency Response 10Hz to 20kHz (+0,-1dB)
Total Harmonic Distortion <0.1% (typical)
CMMR > 75dB (typ @1kHz)
Dynamic Range > 100dB (20Hz to 20kHz)
Equivalent Input Noise -129dBu ('A' weighted XLR to XLR)
Input Impedance 2k ohms (XLR), 840K ohms (1/4")
Maximum Gain 70dB (XLR to XLR typical)
Maximum Input Level +14dBu (XLR), +22dBu (1/4")
Maximum Output Level +28dBu (XLR), +22dBu (1/4")
Output Impedance 600 ohms (XLR), 300 ohms (1/4")
Power Requirements 9 VAC @ 700ma (typ)
Dimensions 5.0"D x 5.5"W x 2.0"H
Weight 1.5 lbs
Tube MP - The Original