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Introduction
Thanks to their sonic excellence and outstanding roadworthiness, Marshall cabinets have become the backbone of
countless set-ups the world over. From major international festivals, to local pubs and clubs, the Marshall cab has
come to personify the image of rock music with its brooding, on-stage presence - both visually and aurally.
This success is no accident; it is the product of many years worth of hard work, experience and listening. Many of
our cabinet construction techniques have changed very little since the Guv’nor, Jim Marshall, hand-built his very
first cabinet back in 1962. We still use the finest materials available and build all our cabinets to truly stand the
test of time. We also carefully select the loudspeakers that best suit the particular purpose for which each cabinet
is intended and test them exhaustively for optimum performance.
The purpose of this handbook is to offer some practical advice and general tips on cabinet usage. Please read it
carefully and keep it in a safe place.
The fact that so many players use Marshall cabinets is a fitting testament to the quality and craftsmanship which
goes into each and every one. With proper care and attention, there is no reason why your Marshall cabinet
shouldn’t last you a lifetime!
4x12" Mono/Stereo Switching Facilities
To ensure maximum flexibility, some of our 4x12" cabinets boast a Mono/Stereo switching system on the back.
When ‘Stereo’ mode is selected, the cabinet is split into two 8 Ohm ‘halves’ for use with a stereo power amp
(e.g.: EL34 100/100, EL34 50/50 or EL84 20/20) such as used in a rack system. When ‘Mono’ is selected you are
offered two different impedance inputs (4 Ohms or 16 Ohms) from which to choose. Always ensure you select
the correct one to match the impedance of your amplifier and NEVER use both inputs at the same time when the
cabinet is in ‘Mono’ mode.
1) Mono/Stereo Selection Switch
Selects either Stereo or Mono operation mode.
2) Right* input
When switch (1) is set to:
i)
Stereo, this provides connection to the right* side pair of speakers.
Rated at 8 Ohms.
ii)
Mono, this provides connection to all four speakers. Rated at 4 Ohms.
3) Left* Input
When switch (1) is set to:
i)
Stereo, this provides connection to the left* side pair of speakers.
Rated at 8 Ohms.
ii)
Mono, this provides connection to all four speakers. Rated at 16 Ohms.
*Note:
No, we’re not insane here! ‘Right’ & ‘Left’ here refers to the two stereo
sides of the cabinet as seen (and heard!) when facing the front of the cab.
2x12" Stereo Selection Facilities
Some of our 2x12" cabinets are fitted with a Mono/Stereo selection plate on the back. This enables you to split the
cabinet into two halves for use with a stereo set-up if you so desire.
Mono usage:
Use the input marked MONO (2), the impedance of which is clearly indicated above
the jack.
Stereo usage:
Use both inputs (1 & 2). Once again the impedance of each is clearly marked.
WARNING! Do not switch to
mono with stereo inputs
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