Mesa/Boogie DC5 manual DC-5Operating Instructions

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DC-5Operating Instructions

Overview:

Your DC-5amplifier was designed to deliver maximum performance in a format based on simplicity. Its easy to dial nature allows each of the two channels to deliver a wide range of sounds in both clean and overdrive styles. The Dual Caliber uses two 6L6 power tubes to fuel its healthy fifty watt power section. We are pleased by its surprising headroom, yet truly musical “clipability” when pushed. The DC-5’spre-amp was no afterthought as you may have deduced by the six 12AX7s tucked snugly away under the swing away tube clamp. Two separate sets of tubes are used to accomplish the Rhythm and Lead channels. It’s really like having two separate amplifiers built into one chassis. Ultimate flexibility is achieved by providing two complete sets of Tone and Master controls as well as the channel assignable 5 Band Graphic Equalizer. Two different sounds can be switched between without compromising tone or levels.

Looking to the Rear Panel assures that all your interfacing needs are covered. A parallel effects loop with a Mix control provides tone insurance for even those questionable effects. A recording circuit dialed for direct to board sessions provides accurate reproduction of the DC-5’spre-amp. When the session goes late into the night, the silent recording speaker mute switch comes in real handy. To use the DC-5in larger rack systems, or to interface to other power sections, the Slave Jack and Level Control is a welcome feature. Three speaker jacks (one 8 ohm, and two 4 ohm) are provided to ensure the proper impedance match to many types of speaker enclosures. An auto assign EQ rotary control lets you decide whether the 5-Band graphic enhances the Rhythm Channel, the Lead Channel, both, or even allows footswitching of the EQ independently. The Reverb can also be footswitched in or out.

As you can see, the DC-5provides all the features any demanding pro could need and at the same time remains simple to operate.

FRONT VIEW

 

DC-5

 

 

 

 

 

 

 

 

 

INPUT

PULL

0

 

 

BOOST

0

 

 

 

 

0

 

 

 

 

1

10

1

10

1

10

 

2

 

2

 

2

 

 

 

 

 

9

 

 

 

9

 

 

 

9

 

3

 

 

 

3

 

 

 

3

 

 

 

 

 

 

7

8

 

 

 

8

 

 

 

8

 

4

 

 

4

 

 

7

4

 

 

7

 

5

6

 

5

6

 

5

6

 

 

 

 

 

 

 

 

FOOT

GAIN

 

TREBLE

MID

 

 

SWITCH

 

0

10

 

0

10

 

0

10

 

1

1

1

 

2

 

2

 

2

 

 

 

 

 

9

 

 

 

9

 

 

 

9

 

3

 

 

 

3

 

 

 

3

 

 

 

 

 

 

7

8

 

 

 

8

 

 

 

8

 

4

 

 

4

 

 

7

4

 

 

7

 

5

6

 

5

6

 

5

6

 

 

 

 

 

 

 

 

REAR VIEW

DC -5

 

 

1.25A

RHY

 

 

IN

LEAD

 

 

 

FUSE

OUT

FT SW

 

 

 

 

2.5A SB

EQ SELECT

SEND

 

FTSW EQ/REV

RETURN

1

0

10

1

0

10

1

0

10

2

 

2

 

2

 

 

 

 

9

 

 

 

9

 

 

 

9

3

 

 

7

8

3

 

 

 

8

3

 

 

 

8

4

 

 

4

 

 

7

4

 

 

7

5

6

 

5

6

 

5

6

 

 

 

 

 

 

 

BASS

 

PRESENCE

REVERB

1

0

10

1

0

10

1

0

10

2

 

2

 

2

 

 

 

 

9

 

 

 

9

 

 

 

9

3

 

 

 

3

 

 

 

3

 

 

 

 

 

7

8

 

 

 

8

 

 

 

8

4

 

 

4

 

 

7

4

 

 

7

5

6

 

5

6

 

5

6

 

 

 

 

 

 

 

0%

10 0%

FX MIX

RECORDING

MUTESPKR ON

SILENT RECORDING

1

0

10

 

 

 

 

 

 

 

2

 

 

 

 

 

RHYTHM

ON

ON

 

 

 

9

 

 

 

 

3

 

 

 

 

 

0

 

 

 

 

 

 

7

8

 

1

 

 

 

 

4

 

 

 

 

 

 

 

5

6

 

 

10

 

 

 

 

2

 

 

 

 

 

 

9

 

 

MASTER

 

3

 

7

8

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

10

 

5

6

 

 

 

 

2

 

 

OUTPUT

 

 

 

 

 

 

9

 

 

 

 

3

 

 

7

8

 

LEVEL

 

LEAD

STANDBY POWER

4

 

 

 

 

5

6

 

80 240 750 2200 6600

 

 

DUAL CALIBER

DC-5

 

 

 

 

 

 

 

 

 

 

 

 

SLAVE

 

SPEAKERS

MESA BOOGIE PATENT APPLIED FOR

8 OHM 4 OHM 4 OHM

HANDBUILT IN PETALUMA

 

PAGE 1

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Contents Mesa Boogie Dualcaliber DC Hello from the Tone Farm Dual Caliber DC USE Common Sense and Always Observe These Precautions DC-5Operating Instructions Gain POWER-UPMidrange Rhythm Channel Pull BoostTreble Presence BassReverb MasterGraphic EQ Controls MasterPower Toggle Switches Rhythm / LeadOutput Level ON/STANDBYFtsw EQ/REV FuseEQ Select FX MIX FX Loop Send / ReturnRecording Silent RecordingSpeaker SlaveSample Suggested Sample SettingsPersonal Settings Tube Noise Diagnosing Power Tube FailuresTube Noise & Microphonics Diagnosing PRE-AMP Tube Problems Bias Adjustment Part of a continuing series Bias Adjustment Cheers Randall Smith Designer & President Mesa Boogier Mesa Boogie Spirit of Art in Technology