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.
The 427 Small Block head partners perfectly with a range of Ashdown US Series cabinets. US Series.
|Power Output||427 Watts|
|Power Requirement||230/ 115/ 100V|
|Frequency Response||-3dB at 35Hz - 14Khz|
|High Instrument Input||Impedance 1m Ohms, input range 25mV - 6V p-p|
|Low Instrument Input||Impedance 100K Ohms, input range 25mV - 6V p-p|
|DI Output||600 Ohms balanced, level 0dBu nominal|
|Output Impedance||2 Ohm|
|EQ||-3dB at 35Hz and 14 kHz|
|Effects Send||1k Ohms, level 0dBu nominal|
|Effects Return||1M Ohms, Input level 0dBu nominal|
1 x ECC83 1 x ECC82
|Output Tubes||8 x KT88|
|H x W x D (mm)||
362 x 610 x 300
5 Year Warranty
We're so confident in our amplifiers, we offer a 5 year warranty on all new products.
Built for the road
Perfect for gigging bass players, our products are built to last.