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Mesa/Boogie JP-2C, Owner'S Manual, Page: 51 / 56

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Mesa/Boogie JP-2C Owner'S Manual Download Page 51

4 OHM

4 OHM

8 OHM

Partial back view of amplifier

8 Ohm   Cabinet

8 Ohm   Cabinet

SERIES BOX

16 Ohm

8 Ohm

8 Ohm

16 Ohm   Cabinet

13

SAFE MISMATCH

 WIRING SCHEMES...Amplifier to Speaker Cabinets

4 OHM

4 OHM

8 OHM

Partial back view of amplifier

16 Ohm   Cabinet

16 Ohm   Cabinet

PARALLEL BOX

8 Ohm

16 Ohm

16 Ohm

16 Ohm   Cabinet

SAFE MISMATCH

14

PAGE 43

Summary of Contents for JP-2C

Page 1: ...Owner s Manual...

Page 2: ......

Page 3: ...like you Our 45 year commitment to excellence along with our solemn promise to musicians to treat each of them as we ourselves would wish to be treated guarantees you an experience that will make you...

Page 4: ...the name Boogie across the front Or the big moment of being completely enveloped in the massive guitar tones on Metallica s Master of Puppets for the first time only to find out that it was none othe...

Page 5: ...JP 2C has been born When the reality of doing a signature amp came to be immediately the emphasis was placed on this being a bonafide and authentic C reissue in every sense of the word from the massiv...

Page 6: ...HANNEL SELECT______________________________________________________________________________ 16 SHRED________________________________________________________________________________________ 16 POWER___...

Page 7: ...___________________________________________ 27 USER PRESET________________________________________________________________________________27 28 USER PRESET DUMP LOAD___________________________________...

Page 8: ...openings with items such as newspapers tablecloths curtains etc Do not impede ventilation by placing objects on top of the apparatus which extend past the rear edge of its cabinet No naked flame sour...

Page 9: ...the turbulent music business However if you play electric guitar and especially if you ve now purchased this amplifier chances are you ve heard of John Petrucci and Dream Theater You may even know of...

Page 10: ...ID BOOST control found on some of our other amplifiers but the increased headroom in the preamp reduces the amount of overall drive available as compared to those amplifiers This fact renders this mor...

Page 11: ...also contained here in a rack system to call up dedicated amps with different settings for each sound CHANNEL 3 Channel 3 is created with soaring lead sounds in mind It s first priority is to meet an...

Page 12: ...Channel Select and the SHRED Voicing Mode This convenient placement alongside the EQ Faders in this Window allows you to dial in your individual sounds and selections quickly and in one place so that...

Page 13: ...l power in live applications or driving processing racks for feed to additional external satellite amplifiers and cabs SPEAKER The standard array of SPEAKER OUTPUTS is provided for the interfacing of...

Page 14: ...is to be in check the INPUT levels on your processor to make sure they are in the medium to lower range so you can increase the level slowly once you have lifted STANDBY on the JP 2C and run through...

Page 15: ...below 11 00 with many players preferring it much lower say 9 00 or even all the way down You can also think of it this way 12 00 on the MID here in Channel 1 is like 10 or all the way up on most othe...

Page 16: ...ound will be whereas higher GAIN settings above 12 00 will unveil a richer thicker warmer mix with less emphasis on top end harmonics and brightness There are no real bad settings to be worried about...

Page 17: ...ely or about because no two pots are ever exactly identical resistance wise and there is a fair amount of play in the older MARK II C Pull Pots so the number settings are general reference points and...

Page 18: ...ut Stage headroom which determines whether the sound will be more or less saturated It also acts as a subtle Tone control as the tube stages gain is increased and decreased and imparts its own color o...

Page 19: ...versatile with no sonic penalty If you prescribe to this old school approach then by all means use the JP 2C this way it won t hurt the amplifier However you will be severely limiting the potential so...

Page 20: ...utilizes the standard time tested PRESENCE circuit used on MESA MARK amplifiers for decades It produces a higher PRESENCE frequency and because of that a softer more elastic feel It features for many...

Page 21: ...nto the mix of the MID controls spectrum and chording sounds start to chime and slash with a more forward and very present character From here on up 1 00 5 30 the MID introduces an aggressive range of...

Page 22: ...gers to frets But addictive as the feel of liquid creamy gain can be try to remember that the sound is important as well You don t want to dial in so much gain that the sound becomes mushy and indisti...

Page 23: ...individual Channel will determine the status of the Effects Loop MD switch down BYPASSES the Effects Loop all the time regardless of Channel selected with the Front Panel Channel Select switch or the...

Page 24: ...ou must first reset the switching buss Follow these simple steps 1 Go to the desired Midi Program Number on your Midi controller of choice 2 Call up the desired JP 2C Channel with the Front Panel Chan...

Page 25: ...ce the volt age for the first few seconds or so of use increased longevity is the result The STANDBY is the amp s equivalent to a dimmer and using it in the above described method will ensure the long...

Page 26: ...ng true to circuit architecture as critical for the MARK II C high gain performance as this model does Therefore it is not sensible to compare REVERB performance with amplifiers that don t provide suc...

Page 27: ...tput This comprehensive direct recording and private monitoring feature greatly enhances the value versatility and convenience of the amplifier and will provide you with new options for quick hassle f...

Page 28: ...it comes to ensuring proper loading of an expensive amplifier piece of equipment like the JP 2C Our Product Specialists will be happy to guide you and or get you the proper information regarding this...

Page 29: ...urrently displayed Midi Program Number location in the JP 2C s processor The Channel and FX Loop status is now saved under the current Midi Program Number displayed on your Midi controller and should...

Page 30: ...ing at the back of the amplifier to make sure the toggle switch is set to SPKR ON This may have been bumped during shipping transport or set up CLOSED BACK OPEN BACK VINTAGE Here in the JP 2C the on b...

Page 31: ...evel strength at the CabClone D I Output NOTE It is a wise practice to get in the habit of beginning every Direct session with the JP 2C s Channel MASTER Controls set to 0 and the STANDBY switch set t...

Page 32: ...fficulty at times than others due to the thickness of the plastic housing surrounding the Pin area of the cable Depending on your set up and whether the JP 2C is the first only device receiving Midi c...

Page 33: ...ating the two pairs in and out of service to increase the interval between re tubing power tubes NOTE To achieve the full 60 WATTS of power and a better overall sound move the Speaker from the 8 Ohm S...

Page 34: ...BLE If the supplied 7 pin DIN FTSW cable is lost a temporary for emergencies only solution is to use a standard Midi cable which must have all 5 pins connected as per the Midi specification The JP 2C...

Page 35: ...ing Bank 1 all subsequent Midi Program Change Numbers will recall presets 1 thru 128 which are in Bank 1 To save a preset for a Midi Program Change Number Select the Midi Program Change Number on your...

Page 36: ...when performing a User Preset Dump To perform a User Preset Dump connect the Midi THRU OUT jack to the Midi INPUT jack of another amp or Midi USB Inter face Press the STORE SWITCH the STORE LED will...

Page 37: ...h quickly indicating a valid Midi message has been received NOTE If you experience any odd or unexpected Midi behaviour it is more than likely a result of the JP 2C receiving both Midi Control Change...

Page 38: ...f and the amplifier will return to its normal mode of operation Upon receiving a firmware update file the STORE LED will begin to blink steadily and will continue to blink during the update Software u...

Page 39: ...5 220 235 250 O O 11 26 41 56 71 86 101 116 131 146 161 176 191 206 221 236 251 O O O 12 27 42 57 72 87 102 117 132 147 162 177 192 207 222 237 252 O O O 13 28 43 58 73 88 103 118 133 148 163 178 193...

Page 40: ...NOTES...

Page 41: ...TREBLE MASTER PRESENCE MASTER MASTER MID PULL PRES PULL PRES BASS BASS PULL GAIN TREBLE PULL GAIN TREBLE CH 1 CH 2 CH 3 EQ 1 EQ 2 EQ 1 EQ 2 EQ 1 FX MD CH 1 FS MD EQ 2 2 CH 3 SHRED 2 MD SRD 2 3 REV MD...

Page 42: ...00 80Hz 240 750 2200 6600 GAIN TREBLE MASTER PRESENCE MASTER MASTER MID PULL PRES PULL PRES BASS BASS PULL GAIN TREBLE PULL GAIN TREBLE CH 1 CH 2 CH 3 EQ 1 EQ 2 EQ 1 EQ 2 EQ 1 FX MD CH 1 FS MD EQ 2 2...

Page 43: ...EQ 2 2 CH 3 SHRED 2 MD SRD 2 3 REV MD FS EQ 1 EQ 2 FS MD FS FS MD MID MID BASS MD INPUT POWER I O I O STANDBY 80Hz 240 750 2200 6600 80Hz 240 750 2200 6600 GAIN TREBLE MASTER PRESENCE MASTER MASTER M...

Page 44: ...o over heat before the others and thus it can be identified It should be replaced with one from the same color batch shown on its label Call us and we will send one out to you The severe short is not...

Page 45: ...se they are at the start of the chain and their noise gets amplified over and over by the tubes that follow The tube that goes into this input socket usually labeled V1 needs to be the least noisy of...

Page 46: ...esistance for example 8 ohm output into 16 ohm cabinet a slightly different feel and response will be eminent A slight mismatch can provide a darker smoother tone with a little less output and attack...

Page 47: ...Connect the Negative side of Speaker A to the Negative side of Speaker B COMBINATION OF SERIES PARALLEL This is really just two sets of Series wired speakers connected in Parallel This is how you main...

Page 48: ...mplifier to Speaker Cabinets 4 OHM 8 OHM 16 OHM Partial back view of amplifier 16 Ohm Cabinet 4 OHM 8 OHM 16 OHM Partial back view of amplifier 16 Ohm Cabinet SAFE MISMATCH 8 OHM 4 OHM 4 OHM Partial b...

Page 49: ...of amplifier SAFE MISMATCH 8 OHM Partial back view of amplifier SERIES BOX 8 Ohm 4 Ohm 4 Ohm 4 Ohm Cabinet 4 Ohm Cabinet 4 OHM 4 OHM 8 OHM Partial back view of amplifier PARALLEL BOX 8 Ohm 16 Ohm 16...

Page 50: ...Cabinet 10 SAFE MISMATCH 12 4 OHM 4 OHM Partial back view of amplifier 16 Ohm Cabinet 16 Ohm Cabinet 11 8 OHM 8 Ohm Cabinet 16 Ohm Cabinet 16 Ohm Cabinet 4 OHM 4 OHM 8 OHM Partial back view of amp PA...

Page 51: ...Cabinet SERIES BOX 16 Ohm 8 Ohm 8 Ohm 16 Ohm Cabinet 13 SAFE MISMATCH WIRING SCHEMES Amplifier to Speaker Cabinets 4 OHM 4 OHM 8 OHM Partial back view of amplifier 16 Ohm Cabinet 16 Ohm Cabinet PARAL...

Page 52: ...HANNEL 1 5TH GAIN STAGE CHANNELS 2 3 V3A REVERB RETURN STAGE V3B 3RD GAIN STAGE CHANNELS 2 3 V4A 4TH GAIN STAGE CHANNELS 2 3 V4B REVERB DRIVE STAGE 100 Watts V6 V7 V8 V9 60 Watts V8 V9 BEFORE CHANGING...

Page 53: ...assis JP 2C ALL TUBE MUSIC AMPLIFIER PATENTED 6 621 907 USE w 2x8 CABS OPEN 0 1 2 3 4 5 6 7 8 9 A BCDE F MADE IN PETALUMA CA WITH THE WORLD S FINEST MATERIALS ALL FRONT PANEL KNOBS PT 408601 FRONT PAN...

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