Road King Manual - Mesa Boogie

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REAR PANEL CONTROLS & FEATURES (Continued)2xEL34: (Continued) Because the Seimens tubes are no longer available in quantity, we have shipped your amplifier with the bestsounding EL34 currently available. This EL34 is made in Russia and has very similar characteristics to that of the Seimens andactually has slightly more output. Best of all is that these tubes are much more reliable and are available and still being made. Wesuggest using these for your live and all around applications. The fatter U.S. type (also known as 6CA7) produce a sound that hassome of the characteristics of the 6L6 and they too sound like they look, fatter and beefier, which is not as readily identifiable as a trueEL34 sound. As you might guess, we have found these to be more reliable also and it comes down to which is more important to yourindividual needs. Regardless of your choice it is always a good idea to carry a full set of extra tubes and fuses in your cord bag at alltimes whenever using gear that relies on this quirky, yet most toneful technology.2x6L6 / 2xEL34: revisits a harness we used back in the mid ‘80’s when we shipped our patented Simul-Class Mark II-Camplifiers with a pair of each of these classic tube types. The combination produced a legendary power sound that was used by theheaviest of L.A.’s session players of the day. Steve Lukather, Mike Landau and Dan Huff (as well as players around the world) becameinstant fans of this unique sound and blessed many a great track with their phenomenal playing through this blistering power combo.It made perfect sense to us to combine these two sonically opposite pentodes and the wiring of our Simul power section made thispreviously overlooked magic possible.In the Road King this combination is achieved by different means but produces no less amazing results. This power section alsoworks well with both clean and overdriven sounds as the combination produces the balance that the EL34’s sometimes lack for cleansounds.For lead or crunch rhythm sounds it is an explosive blend as the 6L6 provide the midrange punch and low end fatness and definition,while the EL’s infuse the top end with their shredding aggressive urgency. This marriage of tubes produces one of the most aggressivepower sounds of any amplifier ever. Be sure to check it out in combination with the CHANNEL 3 and 4 MODERN mode for alesson in bad attitude.POWER FUSE120 V~60 Hz4 AFUSE4 ASLOBLOCHANNELFOOTCONTROLLERCH4 CH3 EXT.SWITCH CH2CH1SOLO REVERB LOOP 1 LOOP 2BYPASSLOOPS, SOLO& MASTERCONTROLSCOMBO VERSION2 x 6L6 and 2 x EL 34(partial rear chassis view)RETURN 110% 90%SEND LEVEL FTSW MIXSEND 2RETURN 2 EXT. TRIGGERSSTR 4306L6 GCING CH 4DIODE A ONPAU +LSEBTUBE-TRACKING BRECTO SPKROFFLOOP 1ONOFFLOOP 2STR 430DIODEATUBE-TRACKING BRECTO SPKRCH 3A +BONOFFLOOP 1ONOFFLOOP 2DIODEATUBE-TRACKING BRECTO SPKRSTR 430A +B2xEL342x6L62x6L62xEL34 4x6L62xEL+4x6L6PROGRESSIVELINKAGECH 1STR 430NORMAL10% 90%LOOP 2MIXREVERBCH 4CH 4CH 2CH 2ABCAUTION: USE SHORTING PLUG IF NO SPKRS IN BEL 34 EL 346L6 GC6L6 GC6L6 GCLEVELSLAVEOUTPAGE 19
A +BREAR PANEL CONTROLS & FEATURES (Continued)HEAD VERSION2 x EL 34 and 4 x 6L6(partial rear chassis view)EL 34 EL 346L6 GCSTR 4306L6 GCSTR 4306L6 GCSTR 4306L6 GCSTR 430LEVELSLAVECAUTION: USE SHORTING PLUG IF NO SPKR IN BAMESA BOOGIECH 1CH 2REVERBOFF OFFLOOP 2 LOOP 1ADIODEOFF OFFLOOP 2 LOOP 1A +BDIODEON ON BCH 2NORMAL 2x6L62x 2xEL34 4xEL34 6L6ARECTOTUBE-TRACKINGOFF OFFLOOP 2 LOOP 1A +BDIODEON ON BCH 3NORMAL 2x6L62x 2xEL34 4xEL34 6L6ARECTOTUBE-TRACKINGOFF OFFLOOP 2 LOOP 1A +BDIODEON ON BCH 4NORMAL 2x6L62x 2xEL34 4xEL34 6L6ARECTOTUBE-TRACKINGPULSELATCHEXT TRIGGERSRETURN 2NORMALSEND 2NORMALRETURN1BYPASSLOOPS, SOLO& MASTERCONTROLSLOOP 2 LOOP 1CH1 CH2EXTSWITCHREV ERBCH3 CH4SOLOFOOTCONTROLLERFUSEPOWER FUSE120 V~ 4 AONONNORMAL10% 90%LOOP 2MIXCH 12xEL342x6L6RECTOTUBE-TRACKING2x6L62xEL34 4x6L62xEL+4x6L6PROGRESSIVELINKAGE4x6L6 is the tried and true power section for high power and great tone. This classic string provides the best overall balance for all 4of the Road King preamps with no tonal downsides. There are no liabilities with this super tight, well rounded quartet as they producesmooth response over the entire frequency range and provide a cohesiveness to even the most extreme overdrive sounds. They alsoprovide the sweetest high power clean sounds because, even though all six power tubes run together produces more power, theycreate some peaks that are great for super high volume playing but lack the pristine blend of the 4 x 6L6 harness. This is also thepower section that has been so successful in the Dual Rectifier SOLO Head!If you are looking for the amazing liquid gain sounds from the Rectos’ VINTAGE mode or the infamous grind of the Rectos’ MODERNmode, this power setting will duplicate those radical sounds in all their glory. Remember to match up the Rectifier…to cop the Rectos’most popular settings set to TUBE TRACKING for VINTAGE and DIODE for MODERN.POWER FUSE120 V~60 Hz4 AFUSE4 ASLOBLOCHANNELFOOTCONTROLLERCH4 CH3 EXT.SWITCH CH2CH1SOLO REVERB LOOP 1 LOOP 2BYPASSLOOPS, SOLO& MASTERCONTROLSCOMBO VERSION 4 x 6L6(partial rear chassis view)RETURN 110% 90%SEND LEVEL FTSW MIXSEND 2RETURN 2 EXT. TRIGGERSSTR 430ING CH 4DIODE A ONPAU +LSEBTUBE-TRACKING BRECTO SPKROFFLOOP 1ONOFFLOOP 2DIODEATUBE-TRACKING BRECTO SPKRCH 3A +BONOFFLOOP 1ONOFFLOOP 2DIODEATUBE-TRACKING BRECTO SPKRA +B2xEL342x6L62x6L62xEL34 4x6L62xEL+4x6L6PROGRESSIVELINKAGECH 1NORMAL10% 90%LOOP 2MIXREVERBCH 4 CH 2CH 4 CH 2ABCAUTION: USE SHORTING PLUG IF NO SPKRS IN BLEVELSLAVEOUTEL 34 EL 34 6L6 GC6L6 GC6L6 GC6L6 GCSTR 430STR 430STR 430PAGE 20
Page 1 and 2: MESABOOGIEOwner's Manual
Page 3 and 4: Table of ContentsPrecautions 0Overv
Page 5 and 6: Operating InstructionsOVERVIEW:Cong
Page 7 and 8: Getting Started:2.) Install the 5U4
Page 9 and 10: CHANNEL MODES:CHANNELS 1 & 2: CLEAN
Page 11 and 12: CHANNEL MODES: (Continued)CHANNEL 3
Page 13 and 14: CONTROLS: (Continued)MID: (Continue
Page 15 and 16: CONTROLS: (Continued)OUPUT CONTROL:
Page 17 and 18: REAR PANEL CONTROLS & FEATURESREAR
Page 19 and 20: A +BREAR PANEL CONTROLS & FEATURES
Page 21: A +BREAR PANEL CONTROLS & FEATURES
Page 25 and 26: A +BREAR PANEL CONTROLS & FEATURES
Page 27 and 28: LOOP 2 MIX:This rotary control dete
Page 29 and 30: REAR PANEL CONTROLS & FEATURES (Con
Page 31 and 32: REAR PANEL CONTROLS & FEATURES (Con
Page 33 and 34: CHANNEL 2 SETTING #1 Skinny SkankFA
Page 35 and 36: CHANNEL 4 SETTING #1 Atlantic Blues
Page 37 and 38: DIAGNOSING PREAMP TUBE PROBLEMS:Bec
Page 39 and 40: BIAS ADJUSTMENT: (Continued) grids.
Page 41 and 42: SPEAKER IMPEDANCE MATCHING & HOOK-U
Page 43 and 44: 1 WIRING SCHEMES...Amplifier to Spe
Page 45 and 46: WIRING SCHEMES...Amplifier to Speak
Page 47 and 48: ON TRIODES, PENTODES & IRISHMEN:Wit
Page 49 and 50: PENTODES: (Continued) stopping them
Page 51 and 52: MESA BOOGIEThe Spirit of Art in Tec

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