Hughes & Kettner VS 250 manual

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Table of contents for the manual

  • Page 1

    USER MANUAL Hughes & Kettner VS 250 Stereo Tube Power Amplifier[...]

  • Page 2

    Hughes & Kettner Stereo Tube Power Amplifier vs 250 Congratulations! You have just acquired a highquality sound tool which combines the sonic superiority of vacuum tubes with the optimum usefulenss of a guitar rack . The VS 250 incorporates the sum of our experience with vacuum tubes. May you enjoy the new measure of expressiveness and creative[...]

  • Page 3

    FRONT Stand by There are two different levels of voltage controlling the tubes: 1) the basic voltage intended to warm the tube to minimum operational temperature. This voltage is always applied to the tube whenever the power switch is in the on position. 2) the operating voltage (plate voltage) which drives the tube. The operating voltage is turned[...]

  • Page 4

    With the SELECT switch you can alternate between PRESENCE 1 and PRESENCE 2. The triangular-shaped LEDs indicate which presence control is currently active. On the back of the VSZ50 there is one l/4” jack per channel for connecting a footswitch to select between PRESENCE 1 and PRESENCE 2. Please note: The PRESENCE controls do not affect the tone a[...]

  • Page 5

    Pentode/Triode The first guitar tube amps from the 30’s and 40’s utilize d TREIODE power amp tubes. Since triodes tend to emphasize even-order harmonics, these amps had a very typical sound with a warm even tone, even when overdriven. Great for sweet, warm, full, fat blues. To obtain higher power levels, tubes were developed in the 50’s with [...]

  • Page 6

    Speaker Outputs Each channel of the Vs 250 has three speaker output jacks with different impedances: 4 ohms, 8 ohms, an d 16 ohms. Use the jack which corresponds to the impedance of the guitar loudspeaker cabinet which you are using. All three jacks may be used simultaneously. If you wish to connect two &ohm cabinets to one channel , please con[...]