2. HEADS

Ashdown 427 Small Block Head

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Product discontinued

Lurking under the hood of this all-tube muscle-amp is an octet of KT88s and three over-fed transformers, creating a monster power stage that just won't quit. Put the pedal to the metal and the 427 surges into action with thundering tones ranging from clean to fat to downright filthy, courtesy of an ECC83-fueled preamp loaded with passive tone circuits and a whole lot of attitude. The 427 Small Block head features High and Low gain inputs, front panel-mounted Effects 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 balanced DI output with Pre/Post EQ switching.

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  • Power Output (RMS) 427W
  • Power Requirement 230 / 115 / 100V
  • Frequency Response -3dB at 35Hz and 14kHz
  • 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 impedance 100k Ohms, input level 0dBu nominal
  • DI Output 600 Ohms balanced, level 0dBu nominal
  • Impedance 2 Ohms
  • EQ -3dB at 35Hz and 14kHz
  • Effects Send 1k Ohms, level 0dBu nominal
  • Effects Return 1M Ohms, input level 0dBu Nominal
  • Pre-Amp Tubes 1 x ECC83 1 x ECC82
  • Output Tubes 8 x KT88's
  • H x W x D (mm) 362 x 610 x 300
  • Weight (kg) 35

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