SPEAKER OUTPUTS
These are the Speaker Outputs to your cabinetry or in the case of a Combo, the Internal Speaker. As
mentioned earlier, we prefer 8 Ohm Loads whenever possible for many reasons from sonic to adaptability with other speakers and
feel your amplifier sounds its best with that impedance loading it.
When using the Combo by itself or the Head through a standard MESA 8 Ohm 4x12 or 1x12 Extension cabinet, use the 8 OHM jack.
Most MESA 2x12 Cabinets are also wired to 8 Ohms and they can be used in this Output as well.
Adding a second 8 Ohm speaker or Cabinet we advise connecting each to a 4 Ohm Output. Current and recent MESA Cabinetry
also provides a Parallel Jack that allows daisy-chaining and this configuration mimics connecting each 8 Ohm Speaker to a separate
4 Ohm Output. This will provide a better impedance match and ensure the full power and headroom is available.
A single 4 Ohm Cabinet should be used with the 4 OHM Output.
A 16 Ohm 4x12 Cabinet or 2x12 Cabinet should be used in the 8 OHM Output and will result in a slight reduction in maximum power,
though it will likely be unnoticeable with the additional coverage four or even two speakers provides.
Two 16 Ohm Cabinets connected to the 8 OHM Output will produce a better impedance match and will offer the full power and headroom.
NOTE: We do not recommend using two 4 Ohm cabinets as this will present a 2 Ohm load to the Output transformer and put undue
strain on it as it was not designed for this application.
Below for your reference are some common and correct SPEAKER Output Connection Examples:
• One 8 Ohm Cabinet – To 8 Ohm SPEAKER Output (One MESA 8 Ohm Cabinet).
• Two 8 Ohm Cabinets – Each to a separate 4 Ohm SPEAKER Output or… One Cabinet to PARALLEL Input on MESA Speaker
Cabinet and 2nd Cabinet to other PARALLEL jack On MESA Cabinet.
• One 4 Ohm Cabinet – To 4 Ohm SPEAKER Output. (Any 4 Ohm Cabinet)
• Two 4 Ohm Cabinets – NOT RECOMMENDED! Output Transformer NOT setup to run on 2 Ohm Load.
• One 16 Ohm Cabinet – To 8 Ohm SPEAKER Output. (Slight reduction in maximum power)
• Two 16 Ohm Cabinets – Use Parallel Box or “Y” connector to 8 Ohm SPEAKER Output.
These common Cabinet connection scenarios will cover most of the widely used setups you will run into. There are likely others less
common that we have not identified here, and some may also be safe and unique sounding. Feel free to call us if you are concerned
as it is always better to be safe than sorry when it comes to ensuring proper loading of an expensive amplifier/piece of equipment like
the Fillmore. Our Product Specialists will be happy to guide you and/or get you the proper information regarding this important topic.
We Thank You for choosing us to be your amplifier company and we look forward to helping you derive many years of satisfaction from
your new amplifier. Call us should you ever need assistance not provided here in this User Manual.
Again, Congratulations on your choice of the FILLMORE™ and Welcome to the MESA/Boogie Worldwide Family!
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