First heard in the 427 Small Block, Ashdown's Dual Tube bass preamp was an instant hit, thanks to its solid, articulate bottom end and sparkling highs. The 330W Ashdown Dual Tube Series 330 head takes this stunning tube preamp design and partners it with an uprated and tour proven MAG power stage.

The discerning bass player gets high and low gain inputs, front panel-mounted FX send and return, rotary bass, middle and treble controls with mid shift, bass shift and bright switching, mute switch, rotary gain and master volume controls and a DI output.

MPN: 330-head

• Power Output (RMS): 307W (330)
  
• Power Requirement: 230 / 115 / 100V
  
• Frequency Response: -3dB at 20Hz and 20kHz
  
• Speaker Outputs: Speakon/Jack
  
• High Instrument Input: Impedance 1m Ohms, input range 25mV - 1.5V p-p
  
• Low Instrument Input: Impedance 100k Ohms, input range 25mV - 6V p-p
  
• Line Input: Impedance100k Ohms, input level 0dBu nominal
  
• DI Output: 600 Ohms balanced, level 0dBu nominal
  
• Impedance: Minimum 4Ohms
  
• EQ: Fully Passive Middle Treble Bass Bass Shift Middle
• Shift Bright Switch
  
• Effects Send: 1k Ohms, level 0dBu nominal
  
• Effects Return: 1M Ohms, input level 0dBu Nominal
  
• Pre-Amp Tubes: 1 x ECC83 1 x ECC82
  
• H x W x D (mm): 150 x 500 x 320
  
• Weight (kg): 10