Mesa Rosette 300 Two:Eight, Owner'S Manual, Page: 7 / 30

MUTE and PHASE switches accompany each channel’s Input features. Channel 1’s Input options are selected by the MIC/LINE
switch, which determines the Input architecture.
LEDs provide clear indication of the status of MUTE and PHASE selections. A RED pair indicates Channel MUTE, while an additional
RED LED below the MIC Input indicates the default Phantom Power ON status (harmless to non-phantom-powered mics). The BLUE
LEDs being ON indicate the Phase being 180 Degrees flipped in relation to the INPUT signal.
Next up on the Front Panel are the GAIN and FX SEND level controls. GAIN adjusts the input gain level for each channel and the FX
SEND determines the amount of that signal to be routed to the internal Effects Processor or the SEND of the EXTERNAL EFFECTS
LOOP.
The HIGH PASS Filter can reduce or eliminate low-end feedback and tone issues before they can arise or be exacerbated with
unintentional overuse of the EQ section. HIGH PASS allows you to dial out the over-resonant, tubby frequencies that often create
unwanted feedback, especially in bigger, more resonant guitars and acoustic instruments.
The fully professional 4-Band EQ Section provides the same degree of shaping power found in upscale recording or live sound con-
soles and together with the optimized INPUT circuitry, creates two impressive Channel Strips for amplifying acoustic instruments. The
separate LOW and HIGH semi-parametric MID Bands allow specific control over a wide range of frequencies and can easily overlap
if needed. This professional level Tone and Frequency control places the Rosette in a category beyond standard acoustic amps and
in with the best of high-end Pro Audio gear.
Mini LED Indicators in the upper right corner of the Front Panel alert you to: 1) clipping the power section and the LIMIT circuit is
being activated (YELLOW). 2) the amp overheating due to excessive Output or settings for prolonged periods (RED). 3) the amp’s
Pilot light indicating the AC MAINS Power has been switched on (BLUE)..
The on-board Effects Suite includes three effects choices: ROOM REVERB, HALL REVERB and REVERB AND CHORUS. These
effects programs create many ways to add spatial enhancement to the sound of your instrument while the PARAMETER Controls
provide unique adjustment of specific effect functions in each of the three modes. The FX MASTER control determines the overall
mix of the effects to the dry signal achieve the desired dry/wet blend.
Finally, The MASTER control at the far right bottom of the Front Panel provides volume adjustment of the amplifier and controls the
overall output from the 300 watt power section that drives the Rosette’s two 8” custom neodymium speakers.
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From Left we first see the AC MAINS power switch and the industry standard IEC AC MAINS removable Power Cord Socket. Never
Alter the Power Cord in any way to reduce the risk of electrical shock. Be sure the Power Cable is seated firmly and completely in
its receptacle.
The Rosette 2x8 Combo utilizes a single SPEAKER OUTPUT to ensure the maximum 300 watt output power is provided via the
optimized internal 4 Ohm speaker load..
A HEADPHONE Output is provided for personal monitoring, with or without the combo speakers connected. If you wish to play with
headphones ONLY (not using the Rosette’s internal speakers), simply unplug the Speaker Cord from the SPEAKER OUTPUT jack.
Operating the Rosette’s Class D amplifier without its speakers connected is 100% safe and allows you to play through and/or record
silently with the amp with headphones (or the amp’s DI Outputs – or both). The HEADPHONE OUTPUT will efficiently drive any
headphones with an impedance between 8 to 32 Ohms. We suggest researching and auditioning headphones before you buy as
the performance can vary substantially between manufacturers and impedances.
A Channel MUTE FTSW Jack is provided to allow remotely controlled muting of the Channels. The MUTE FTSW Input is fitted with
a stereo (Tip / Ring / Sleeve) jack with the Tip controlling Channel 1 MUTE and the Ring controlling Channel 2 MUTE. MESA sells
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