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The VXSE-KT88/C valve amplifier uses, for the output stage, some specific transformers with grain-oriented core and multi-layer windings that we properly designed with class "A" single-ended ultra-linear configuration. The selected polarisation is the " FIXED BIAS " and allows, by supplying a negative voltage to the control grid, the accurate and stand-alone adjustment of every valve's bias current, thus setting the best operating point. All control and adjustment operations (required when replacing one or more valves) are very easy thanks to the " BIAS BOARD " placed on the backside that allows those operations to be carried out without disconnecting and/or moving the equipment. The powering section includes one very low leakage flux toroidal transformer and some self-standing LRC filter for the two L/R channels. The strong frame structure is the harmonious result of advanced production processes (items are made of laser-cut sheets with a min. thickness of 15/10) and old production processes (manual mirror finishing of the AISI 304 stainless steel item) and is provided with a support base, which is separated by incorporated anti-vibration elements for reducing the possible environment disturbances, and a removable safety guard, which is painted with mat black epoxy resins (other shades available upon request). The presence of two ALPS, blue series, L/R self-contained potentiometers on the front side (simultaneous control of the volume and of the balancing) and of a CD/TUNER/AUX input selector, make the VXSE-KT88/C amplifier a complete element, with no need for further accessories.


  • Valve complement : KT88 x 2 , 5814A x 2
  • Output power : 15W + 15W RMS - 1KHz.
  • Negative feedback : 10 dB.
  • Bandwidth ( 1W ) : 7Hz 56KHz , +/- 1,5 dB.
  • Bandwidth ( 15W) : 15Hz 56KHz , +/- 1,5 dB.
  • S/N ratio : > 90dB.
  • Input sensitivity : 1V RMS - 1KHz ( 15W RMS ).
  • Output impedance : 4/8 ohms.
  • Input impedance : 100K ohms.
  • Voltage supply : 230V - 50/60 Hz.
  • Dimensions/Weight : 450 x 350 x 220 mm / 22 Kg.




VEXO SRL Via Buozzi N. 15, 20090 Buccinasco (MI) Italy
Tel. e Fax: +39