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Rosette specific Mute footswitches separately through our Authorized Dealers and Distributors, our Parts & Accessories Online Store, 
or by contacting our Customer Service department.

The FX BYPASS FTSW Jack accepts a mono ¼” cable and Tip to Ground ON/OFF footswitch to bypass the internal Effects and/
or any external effects that may be inserted in the FX Loop.  MESA sells FX bypass footswitches separately through our Authorized 
Dealers and Distributors, our Parts & Accessories Online Store, or by contacting our Customer Service department.

Next up are the FX LOOP SEND & RETURN Jacks. These mono jacks are provided as a Parallel Loop interface for connecting 
external effects processors and pedal effects between the amp’s preamp and power section. Both the SEND (Output) and RETURN 
(Input) are optimized for a Line Level signal, so external processors should have their Input and Output configured for the same signal 
level whenever possible. The FX SEND level is controlled by each channel’s Front Panel FX SEND control. The FX SEND can also 
be used as an additional ¼” Line Level Output when nothing is connected to the FX RETURN Jack.

The AUX INPUT is provided to allow connection of external music sources through your Rosette amplifier such as a CD player, mobile 
device, drum machine, and computers or DAWs used for audio playback and accompaniment. Use the device’s volume control to 
achieve its desired listening level in balance with your instrument as all controls except the MASTER are inactive in this signal path.

Finally, the Rosette features a comprehensive, studio-quality DIRECT OUTPUT Section. Channel 1 & 2 have dedicated XLR Outputs 
with PRE/POST EQ, MIC or LINE LEVEL and GROUND or PIN 1 LIFT switches. Additionally, a third XLR Jack delivers a properly 
summed output of both channels preset to POST EQ and switchable between MIC & LINE level. Beyond its thorough features and 
thoughtful layout, it’s the great TONE and exceptional low noise of Rosette’s DI Outputs that sets it apart from the competition. For 
live and recording, Monitor, Front of House and Recording engineers will thank you when they hear the clean, quiet and accurate 
signal the Rosette DI delivers. This comprehensive, Toneful DI is nearly worth the price of admission alone, especially as the signal 
that feeds your acoustic voice to live venues and recording applications with something as important as your music. 

  INSTANT GRATIFICATION  

  The ROSETTE

®

 is a professional and comprehensive amplifier for acoustic instruments. Once 

dialed in to your preferred settings, the amplifier is essentially ‘set and forget’ while still allowing for a wide range of tones and adjust-
ments for different instruments, applications and venues. Start with the MUTE SWITCH down (mute off), the PHASE SWITCH down 
(in PHASE), the FX SEND off (7:00), and the four EQUALIZER controls (BASS, LOW MID GAIN, HIGH MID GAIN and TREBLE) in 
the “flat” (12:00) position (LOW & HIGH MID FREQUENCY control positions won’t matter with the MID GAIN set flat). Choose the 
channel you want to use and set the GAIN control no higher than 10:00 and the MASTER VOLUME control between 11:00-1:00 
(11:00 if playing quietly and 1:00 if louder or for live performance, etc.). Increase the GAIN control until you feel a nice balance is 
achieved between headroom and fullness, usually around 11:00 – 1:00 depending on your instrument’s output level. Increase the 
MASTER if needed to reach the desired playing volume. Higher GAIN settings may increase the potential for feedback or unwanted 
clipping and distortion.
 
If you want to use effects, select an effects program from the three choices, set the EFFECTS MASTER control to the 1:00 position 
and gradually rotate the FX SEND control clockwise on the channel you’ve plugged into to add effects to the overall sound. Now, it’s 
just a matter of setting the EQ to taste and fine tuning the EFFECTS PARAMETER controls.

SUBTRACT FOR TONE! SETTING THE SWEEPABLE MIDS

Recording and live sound engineers have long known that removing what you don’t want works far better than boosting what you do 
want to achieve a balanced sound. This method reduces noise floor, avoids clipping and produces better overall results than trying 
to boost frequencies. Don’t frustrate yourself by ignoring this time-proven Golden Rule of Audio and you will arrive at great Tone 
quickly and easily.

LOW MID BAND: With the BASS set at 10:00 and the TREBLE set at 11:00, set both LOW and HIGH MID Controls all at NOON. 
Increase the LOW MID GAIN to 2:00 and sweep the LOW MID FREQUENCY back and forth from 12:00 until you hear a frequency 
you do not like and stop there. Then, reduce the LOW MID GAIN until you reach a desired blend, keeping in mind you don’t want to 
remove too much of that frequency or the sound may be unnatural.

PAGE 4

Содержание Rosette 300 Two:Eight

Страница 1: ...Owner s Manual...

Страница 2: ...u are the new owner of an amp bred of fine heritage benefitting from the many pioneering and patented MESA circuits as well as fresh cutting edge research and development efforts leading to this new a...

Страница 3: ...________________ 10 LAYERED CHORUS REVERB PROGRAM_____________________________________________________ 10 ROOM HALL REVERB PROGRAMS_______________________________________________________ 10 11 EFFECTS...

Страница 4: ...atus which extend past the rear edge of its cabinet When Rack Mounting this unit proper ventilation space must be maintained Do Not cover or block Front and Rear and allow at least 2 of open breathing...

Страница 5: ...the accurate reproduction of that beauty While staying true to the concept of Do No Harm few products or companies seem to share this perspective forAcousticAmplification And when it comes to the ele...

Страница 6: ...s and can end at the Input Stage We re not about to let the latter happen on our watch Note that the lower Channel 2 may be used with a Microphone by using a standard Line Matching Transformer availab...

Страница 7: ...ot 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 m...

Страница 8: ...eeds your acoustic voice to live venues and recording applications with something as important as your music INSTANT GRATIFICATION The ROSETTE is a professional and comprehensive amplifier for acousti...

Страница 9: ...I PASS controls feedback by taming excess low frequency resonances and if your instrument is feeding back at a lower pitch increasing the HI PASS filter stands a very good chance of remov ing the offe...

Страница 10: ...nel The microphone preamp features a discrete low impedance balanced input amplifier which provides appropriate loading approx 3k ohms and gain to the microphone The MICROPHONE INPUT jack provides DIN...

Страница 11: ...ustic instrument and bass amplifiers within the past few years with a few notable exceptions This variable filter helps you coordinate and control the sub sonic harmonics generated by the acoustic cav...

Страница 12: ...than trying to boost frequencies Don t frustrate yourself by ignoring this time proven Golden Rule of Audio and you will arrive at great Tone quickly and easily LOW MID BAND With the BASS set at 10 0...

Страница 13: ...necessary to set the MIC GAIN or INSTRUMENT GAIN control a little lower and maybe increase the MASTER control a little to obtain a reasonable playing volume and avoid overdriving the input stage Simi...

Страница 14: ...to the generated reflections Because the time offsets are longer it s helpful not to use too much of this program in a mix especially with long reverb times and a high setting of parameter 2 s low pa...

Страница 15: ...t stage clipping It s acceptable for this amplifier to operate in output stage overdrive mode if that s the tone you re after with the LED flash ing roughly 25 of the time on Rear Panel Controls Featu...

Страница 16: ...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...

Страница 17: ...still best to introduce the least possible cable capacitance in the FX LOOP to ensure the best performance and Tone AUX INPUT The Rosette provides a 1 4 6 5mm T R S AUX INPUT This Tip Ring Sleeve ster...

Страница 18: ...h allows you to best match whatever the requirements are of the equipment you are connecting the DI OUTPUTS of your amplifier to so set this switch according to those needs and you will always enjoy g...

Страница 19: ...REST AREA PAGE 15...

Страница 20: ...n turn the controls up 3 Defective speaker cable or cabinet test known good speaker cable and cabinet 4 Defective pickup or cable test with known good pickup and cable 5 There is indeed a problem with...

Страница 21: ...ck all wiring for missing grounding earthing pins have qualified electrician check building power wiring for missing ground earth connections and correct as necessary 4 Problem with wiring or a device...

Страница 22: ...Class D amplifier experience both in bass and acoustic amplifiers as well as in the touring pro audio world We have worked closely with the European engineering team on the development of these new po...

Страница 23: ...WM digital audio recorder but at a much higher frequency at 5 volts conventional computer logic level This PWM pulse train is level shifted by large solid state switching power transistors that operat...

Страница 24: ...RUS ROOM REVERB HALL REVERB LIMIT FX BYPASS PROTECT POWER LOW MID HIGH MID 300 TWO EIGHT ROSETTE PICKUP PHASE PICKUP INPUT PICKUP INPUT CH 1 CH 2 MIC INPUT PLAY MUTE CLIP IN OUT IN MIC PICKUP PHASE PL...

Страница 25: ...TWIST LIFT ADJUSTMENT Adjustment of the Twist Lift is as simple as turning the threaded stand on the bottom side of the cabinet counter clockwise to RAISE the amp or turning the threaded stand clockwi...

Страница 26: ...ones For this reason specifications and information in this manual are subject to change without notice SERVICE INFORMATION USA CANADA Customer Support For technical support troubleshooting tone ques...

Страница 27: ...ROSETTE 300 TWO EIGHT BLOCK DIAGRAM PAGE 23...

Страница 28: ...CONSUMPTION 250W MAINS FUSE INTERNAL T4A 250V h AMPLIFIER 44YV 100V 240VAC 50 60HZ INPUT POWER RATED POWER PICKUP PHASE PICKUP INPUT PICKUP INPUT CH 1 CH 2 MIC INPUT PLAY MUTE CLIP IN OUT IN MIC PICKU...

Страница 29: ......

Страница 30: ...18 02 13 MESA Boogie 1317 Ross Street Petaluma California 94954 USA Phn 707 778 6565 www mesaboogie com Fax 707 765 1503...

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