Mesa Rosette 300 Two:Eight Скачать руководство пользователя страница 7

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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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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