Marshall Amplification 1959HW Owner's Manual

Marshall Amplification 1959HW Owner's Manual

100 watt head
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Summary of Contents for Marshall Amplification 1959HW

  • Page 2 ‘Tonal Notes’. As you can see from its front panel layout, the 1959HW is an extremely straightforward amplifier. Its two channels - Channel I and Channel II - each have two inputs (High and Low sensitivity) and separate Volume controls, while sharing the amplifier’s four tone controls: Presence, Bass, Middle and Treble.
  • Page 3 1959HW having a tighter sound than earlier versions. Note: The 1959HW incorporates 47nF/630V capacitors fitted in parallel with each of the four diodes in the bridge rectifier circuit. These are present for today’s approval requirements that necessitate a reduction in electrical interference that may be generated and put back on the mains electricity supply.
  • Page 4 EMC Directive (Environments E1, E2 and E3 EN 55103-1/2) and the Low Voltage Directive in the E.U. EUROPE ONLY - Note: The Peak Inrush current for the 1959HW is 76 amps. 1959HW Front Panel 1. POWER SWITCH This is the On/Off switch for mains power to the amplifier.
  • Page 5 Performance Note: Bridging or ‘jumping’ the two channels Because both Channels of the 1959HW have the same number of gain stages (two) and are therefore in phase with each other, it is possible to bridge them together (‘slaving’, ‘jumping’, ‘linking’ or even ‘daisy- chaining’) and use them both at the same time.

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