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Operating Instructions

  Introduction:  

Few can deny the intrinsic beauty of the Acoustic Instrument, especially the Acoustic Guitar. The visual beauty of the Tonewoods, 
the curvaceous shapes and elegant lines of body styles, and the delicate artwork of inlay all coalesce in harmonious interplay with 
tensioned strings to produce musical promise. 

So when we at MESA

®

 turned our eyes and ears toward amplifying these sounds, one thing more than any other stood out as an 

objective; Do No Harm. In its sincerity and perfection, there is no reason to “enhance” the sound of the acoustic guitar, or any other 
acoustic instrument for that matter, but rather… just reproduce it.  

Unlike electric guitar amplifiers that offer a myriad of enhancements and often complete re-voicings, the acoustic instrument has all 
the complex harmonic content it could ever need, on-board. All that is required is 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 for Acoustic Amplification. 
And when it comes to the electronic and mechanical components and design needed to fulfill that order, it’s easier said than done. 
It requires a commitment to using the absolute best components and circuit design dedicated to uncompromising accuracy, purity of 
sound and the lowest possible extraneous noise. 

The ROSETTE

®

 line is a dedicated acoustic instrument platform designed not just for acoustic guitars, but also for mandolin, ukulele, 

violin/fiddle, dulcimer, cello, upright bass and other uniquely acoustic instruments.

Our reverence and appreciation for acoustic instruments guides the designs of the Rosette Series products. Our commitment to 
produce innovative, reliable and inspiring musical instrument amplification for nearly 50 years, now… Finally includes the incredible 
world of acoustic instruments and acoustic guitar. Introducing the Rosette 2x8 combo and the Rosette DI Preamp/Pedal.

PAGE 1

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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