Studio Projects VTB1 Single-Channel Tube Blend Mic Preamp

  • Manufacturer: Studio Projects

• 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 • TRS Insert • Mic/Line Switch

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MPN (manufacturer part number) VTB-1
UPC (Universal Product Code) 00850207000217
Condition New
Specs Maximum Gain : Mic In to Bal Out: 72dB (60dB preamp gain, 12dB output gain) Line In to Bal Out: 42dB (30dB preamp gain, 12dB output gain) Distortion/Noise (THD + Noise): -20dBu input-Mic; 0dBu input-Line Both measured at +15dBu output Mic or Line In to Bal or Line Out: <0.0015% (Blend set full CCW- no tube) Mic EIN: -128dBu (150 ohm source, 60dB gain) Frequency response (20-20kHz, ref 1kHz): -20dBu input, +15dBu output Mic In to Bal Out: +0 /-0.25 dB 0dBu input, +15dBu output Line In to Bal Out: +0 /-0.5 dB Phase response <+/- 15 degrees Input impedance: Mic Input (Rear switch in 200 ohm position): 2000 ohms Mic Input (Rear switch in 50 ohm position): 300 ohms Line Input (Front panel TRS jack): 1.5 meg ohms Output impedance: Male-XLR Balanced Output: 100 ohms (50 ohms each leg) TRS Line Out: 300 ohms (Impedance Balanced) Insert Jack (TRS): Nominal level approx 0dBu Located between SS preamp stage and tube/output stage Tip=Send: 50 ohms output impedance Ring=Return: 7500 ohms input impedance
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