An affordable channel strip with hand-tested tube preamp and opto compressor.

The single-channel SM Pro Audio TC01 Class A tube preamplifier offers selectable phantom power, switchable phase reversal, adjustable -20dB PAD, and an adjustable in-line optical compressor. It has a hand-tested 12AX7 tube TC-series and input gain control all protected by a sturdy metal housing.

(The TC02 is 2-channel version of the TC01: see #620998)

SM Pro Audio TC01 Single Channel Tube Preamp Features:

• Hand tested 12AX7 Tube
• Saturation: 10% @ 30dB
• CLASS A transformerless high-voltage signal path
• Switchable phantom power
• Switchable phase reversal
• Level display: Volume meter -20 dBu to +3 dBu
• Adjustable optical compressor
• 110V - 220V external power pack
• Input gain control
• Switchable -20dB Pad
• Housing: Metal

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SM Pro Audio TC01 Single Channel Tube Preamp Specifications:

• Audio Inputs
• Mic input connector: XLR balanced
• Impedance: 3k Ohms
• Mic input gain: 10dB to 60dB
• Phase reversal: switchable
• Phantom power: + 48V, switchable
• Instrument input con.: 1/4" jack unbalanced
• Instrument input gain: 0dB to 45dB
  
  Audio Outputs
• Connectors: XLR & 1/4" jack
• Type: Balanced & Unbalanced
  
  Amplitube Frequency Response
• Line in: 6Hz to 20Hz within 1dB
• Mic in: 8Hz to 20Hz within 2.5dB
  
  Compressor
• Photoresistive servo operated
• Ratio: 5:1
• Attack: 1ms - 100ms
• Release 0.1s - 3s
  
  Filter
• Shelving filter at 80Hz
• Slope: 16dB
  
  Meter
• VU meter: -20dBu ±3dBu
  
  Performance
• THD (Unweighted): 0.05%
• Signal to noise: > 90dB
• Power supply rejection: > 98dB
  
  Power Supply
• Transformer External
• Input 17v AC
  
  Size: 9.5"