Mesa/Boogie Dual Rectifier Road King II Amp Owner's Manual page 19

REAR PANEL CONTROLS & FEATURES
SELECTING POWER TUBES:
2xEL34
is similar in output to the 2 x 6L6 duo but oddly enough can at times seem more powerful to the ear and has a very different
character. The emphasis here is on top end and a more urgent stripped attitude. While this setup works for both low and high gain
sounds, the additional top end accentuation combined with a drier low end makes clean sounds a bit more challenging to dial. There
are some great edge of clean sounds possible, especially in the BRIT mode of CHANNEL 2 where the lower mid characteristic is edge of clean sounds possible, especially in the BRIT mode of CHANNEL 2 where the lower mid characteristic is edge of clean
complimentary to these brighter tubes.
POWER FUSE WER FUSE CHANNEL
120 V~ 4 A
EXT.
60 Hz SLO CH4 CH3 CH2
SWITCH
4 A BLO
FOOT
CONTROLLER
SOLO REVERB LOOP 1
FUSE
COMBO VERSION 2 x EL 34
(partial rear chassis view)
HEAD VERSION 2 x EL 34
(partial rear chassis view)
CAUTION: USE SHORTING PLUG IF NO SPKR IN B M B
ESA OOGIE
A
LEVEL
SLAVE
The EL's have the harmonic spread, but not quite the balance of the 6L6 and this makes these Euro-born pentodes hygienically
challenged when compared to the 6L6. For gain sounds though, they have an attitude all their own that is undeniable in its brash
urgent glory. The seeming lack of sub-low performance hinders them a bit for modern high gain mosh or metal sounds, but they own
the territory between clean and crunch with a lushness of harmonics and top-end shred that is wicked, yet musical. Only these tubes
respond with a looseness that is a benefit, for it produces that coming-apart-at-the-seams vibe that can put danger in any Rock and
Roll part played through this rebellious team. Check out RAW and the lower half of VINTAGE in CHANNELS 3 and 4 for a world of
these sounds, but ride the PRESENCE with care as there is substantially more high end here than any other power choice.
(Continued)
I
N
G
10%
BYPASS
CH1
SEND LEVEL
LOOPS, SOLO
& MASTER P
CONTROLS U
L
S
E
TUBE-TRACKING
SEND 2 RETURN 2
LOOP 2 RETURN 1 EXT. TRIGGERS
430 STR
GC 6L6
EL 34
OFF
OFF
A
DIODE
LOOP 2 LOOP 1
A
+
B
ON
ON
RECTO
TUBE-TRACKING
CH 1
2x6L6
2xEL34 4x
2x
EL34 6L6
2x
6L6
REVERB
PROGRESSIVE
LINKAGE
CH 4
CH 3
DIODE A ON ON
DIODE A ON ON DIODE
A A
+ +
B B
B OFF OFF
B OFF OFF
TUBE-TRACKING
TUBE-TRACKING
RECTO SPKR LOOP 1 LOOP 2 RECTO SPKR LOOP 1 LOOP 2 SPKR
RECTO
430 STR
430 STR
GC 6L6
GC 6L6
EL 34
6L6 GC
STR 430
OFF OFF OFF OFF
OFF OFF
A DIODE
A DIODE LOOP 1 LOOP 2 LOOP 1
LOOP 2 LOOP 1 LOOP 2
A
A
+
+
B
B
ON ON B ON ON
ON ON B RECTO
RECTO
CH 3 CH 4
CH 2 TUBE-TRACKING TUBE-TRACKING
2x6L6
2x6L6
2xEL34 4x 2x 2xEL34 4x
2x
EL34 6L6 EL34 6L6
2xEL+
4x6L6
PAGE 15
(Continued)
2x6L6
2xEL34 4x
2x
EL34 6L6
2xEL+
2x
4x6L6
6L6
REVERB
A
A
+
PROGRESSIVE
B
B
LINKAGE
CH 1
430 STR
GC 6L6
6L6 GC
STR 430
EXT TRIGGERS RETURN 2 SEND 2 RETURN1
P BYPASS
A DIODE
U
LOOPS, SOLO
A
L
+
& MASTER
B S
CONTROLS
E
B
RECTO
L
TUBE-TRACKING
A
NORMAL
2x6L6
T
2xEL34 4x
2x
C
EL34 6L6
H
A
LEVEL
SLAVE
OUT
B
CAUTION:
USE SHORTING PLUG IF NO SPKRS IN B
34 EL 34 EL
6L6 GC 6L6 GC
STR 430 STR 430
LOOP 2 LOOP 1 REV ERB SOLO
FOOT
CONTROLLER
EXT
CH1 CH2 FUSE
CH3 CH4
SWITCH
POWER FUSE WER FUSE
120 V~ 4 A