Grounded AC mains power outlet when connecting your amplifier to the wall or a power source.
This power inlet conforms to the IEC C-14 type standard and is used with a corset containing a matching connector, and appropri-
ate plug for the intended market.
SPEAKER OUTPUT
The Rosette 300 amplifiers are rated to drive a minimum 4 ohm load. Using a Load other than 4 Ohms is not
recommended as the amplifier will not put out its full rated power and some loads may even cause overheating and engage the Protection Circuit.
While the Rosette Combo has only one SPEAKER OUTPUT, you may disconnect the internal speakers and run the amplifier with any external 4
ohm Load. That said, we do not claim responsibility for the sound. The loudspeakers chosen for your amplifier were picked for their high quality,
efficiency and full, robust, detailed sound. They are Full Range Speakers and your amplifier may suffer reduced performance when connected
to speakers not designed in tandem with it.
Since the Combo internal speaker configuration is already 4 Ohms, it is not able to drive additional external speakers and is therefor equipped
with only one 1/4” (6.5mm) T.S. (tip/sleeve) SPEAKER OUTPUT jack. Do not connect additional speaker enclosures to the Speaker jack unless
you can verify the overall Combined Load will remain 4 Ohms for the enclosures in use.
NOTE: Do not connect the SPEAKER OUTPUT to anything except speakers.
HEADPHONE OUTPUT
Your Rosette includes a 1/4” (6.5mm) T.R.S. (tip-ring-sleeve) HEADPHONES output jack, which will
drive all common headphones and IEM ear pieces/buds between 8 and 32 ohms. As headphones can vary greatly in performance
and efficiency, we recommend auditioning them with your amplifier before purchasing.
The MASTER controls the output level at the HEADPHONES output, so be aware of its setting before putting on headphones! It is
always a good practice to zero out the MASTER when connecting headphones, and once you have put the headphones on, increase
it slowly to the desired listening volume. This will help avoid accidental ear damage.
NOTE: IMPORTANT! It’s advisable to use caution whenever sticking any sound source in, or in close proximity to, your ears, as
hearing damage is possible due to unintended volume settings being in place. This is especially true in live performance or studio
environments, where others may be adjusting things for you.
Also, loud volumes over prolonged periods with headphones can cause hearing damage you won’t notice immediately. Be very aware
of this while playing with headphones and take frequent breaks to get a volume reference. It’s very easy to get lost in the sound,
especially in an amplifier of this quality, and keep turning it up as your ears and brain keep acclimating to higher and higher volume
levels. Don’t let that happen! Don’t get fooled! Take frequent breaks to rest your ears and reference silence.
NOTE: The internal speakers are still active and operate when the HEADPHONES output is in use. To play “silently” (just using
headphones), simply disconnect the speaker jack from the SPEAKER OUTPUT on the rear panel. When you are finished, be sure
to reconnect the speaker jack so that the amplifier will be ready for your next session.
This output contains additional cabinet emulation circuitry optimized for headphones. Do not connect anything other than headphones
or ear buds to the HEADPHONES output.
MUTE FOOTSWITCH
The 1/4” (6.5mm) T.R.S. MUTE FOOTSWITCH jack allows for remote muting of the Channels. It re-
sponds to standard tip-to-ground on/off latching footswitches. Shorting the tip to the sleeve mutes the top Channel 1. Shorting the ring
to the sleeve mutes the bottom Channel 2. The LEDs on the Front Panel will indicate which Channel is in MUTE mode. The toggle
switches on the front of the amp must be in the down (PLAY) position for the remote MUTE footswitch to function properly and mute
the channels. Any standard latching type footswitch, wired appropriately, may be used to control the Channel Mute Function. MESA
sells Rosette specific Mute footswitches (one and two button) separately through our Authorized Dealers and Distributors, our Parts
& Accessories Online Store, or by contacting our Customer Service department.
PAGE 12
Summary of Contents for Rosette 300 Two:Eight
Page 1: ...Owner s Manual...
Page 19: ...REST AREA PAGE 15...
Page 27: ...ROSETTE 300 TWO EIGHT BLOCK DIAGRAM PAGE 23...
Page 29: ......
