Mesa/Boogie DC3 manual Power-Up, Gain, Use of the EQ. see page 5 for more information on EQ

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FRONT PANEL:

First familiarize yourself with the layout of the Front Panel and locate the Lead / Rhythm switch on the right side of the chassis, next to the Standby Switch. This toggles you between the top (Rhythm) Channel and the bottom (Lead) Channel. If you don’t have the Rhythm/Lead Footswitch connected, this switch will activate the channel switching function. Before we get too critical about each control, let’s audition the two channels with a basic clean setting in the Rhythm Channel and a fairly high gain overdriven sound in the Lead Channel.

POWER-UP:

Connect your favorite guitar to the instrument input jack. Turn the power switch “ON” while leaving the standby switch set to “STANDBY”. (It’s always a good idea to practice this start up procedure as at least 30 seconds of warm-up time lessens the shock on cold power tubes, thus prolonging their life substantially.) Next set the controls and the Graphic EQ per the example below:

INPUT

5

5

2

6

4

3

4

RHYTHM

ON

ON

 

 

 

 

 

 

 

 

2

 

 

 

FOOT

GAIN

TREBLE

MID

BASS

PRESENCE

REVERB

MASTER

 

 

 

SWITCH

6

5

5

6

2

2

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT

LEAD

STANDBY

POWER

 

 

 

 

 

 

 

240 750 2200 6600 DUAL

CALIBER DC-3

 

 

 

 

 

 

 

LEVEL

 

 

 

 

 

 

 

80

Flip the STANDBY switch to the ON position and listen to the two channels using either the footswitch or the Channel Select toggle

switch found on the right side of the Front Panel. The EQ Rotary Control on the left side of the Rear Panel,

 

 

 

 

controls the EQ assignment. This popular “V” type curve works well in both Rhythm and Lead Channels,

 

 

 

 

 

 

RHY

but most players tend to use it more in the Lead Channel, finding the Rhythm plenty sweet by itself without

1.25A

IN

LEAD

 

OUT

FT SW

the use of the EQ. (see page 5 for more information on EQ)

 

FUSE

 

 

 

 

 

 

 

 

2.5A SB

EQ SELECT

 

 

 

 

Again, these are merely examples of the two channels. Experimentation leads to finding many different

 

FTSW EQ/REV

 

 

 

 

sounds in each channel and understanding the controls and the way they interact, can make this much

 

 

 

 

easier and more fun. Now lets get specific!

 

 

 

 

Now that you have heard the DC-3’stwo channels, let’s move on to understanding the controls and their interactive roles in achieving the sounds that you want to hear.

CONTROLS:

GAIN:

This is by far the most powerful control in each channel. It not only determines the overall gain amount, shape and sensitivity of the

channel...but it is also a powerful Tone control. Generally speaking, whatever is dialed here ultimately determines the channels

 

 

personality. Set low, it allows cleaner, brighter sounds with enhanced dynamic response, especially in

 

 

the higher frequencies. Set high the whole personality of the channel becomes darker, fatter and more

INPUT

5

overdriven. In the DC-3we worked hard to make sure the entire range of Gain available is usuable and more

 

 

 

 

 

importantly, musical. Don’t think for a moment that this simple one knob layout limits you as to the amount and

FOOT

GAIN

texture of gain. Long neurotic hours were spent to ensure the ranges of gain were stylistically accurate. It’s

SWITCH

 

 

 

 

 

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Contents Dual Caliber DC Hello from the Tone Farm USE Common Sense and Always Observe These Precautions DC-3 DC-3Operating Instructions POWER-UP GainUse of the EQ. see page 5 for more information on EQ Purpose MID Control From 0 to about TrebleMidrange BassINPUTdominant in the mix PresenceAround MasterOutput Level Graphic EQToggle Switches Rhythm / Lead PowerOn / Standby Ftsw EQ/REV FuseEQ Select Ing tradition and save the replaced set as sparesRecording FX Loop Send / ReturnFX MIX Silent RecordingSlave SpeakersSample ChannelPersonal Settings 12AX7 Diagnosing Power Tube Failures Tube Noise & MicrophonicsTube Noise Diagnosing PRE-AMP Tube Problems Why doesn’t Mesa put bias adjustments in their amplifiers? Here’s a question we often hearBias Adjustment Your amp needed biasing Cheers Randall Smith Designer & PresidentFront View DC Rear View DCMesa Boogie 707 778-6565 FAX no

DC3 specifications

The Mesa/Boogie DC-3 is a highly regarded guitar amplifier known for its versatility, power, and distinctive tone. Introduced during the early 1990s, the DC-3 has become a staple among musicians who appreciate its unique blend of classic and modern sounds. The amplifier is part of the Mark series, renowned for its innovative design and exceptional sound quality.

One of the standout features of the DC-3 is its all-tube preamp, which contributes to its warm and rich tonal characteristics. The amplifier utilizes three 12AX7 tubes in the preamp stage, providing a dynamic response that enhances the natural tonal qualities of the guitar. This all-tube configuration is complemented by a powerful 2x6L6 power tube setup, delivering a powerful 30 watts of output. This combination allows the DC-3 to produce a wide range of tones, from clean and sparkling to thick and saturated drive.

The DC-3 is equipped with a unique two-channel design, offering a Clean channel and a Lead channel, each with its own set of controls for ultimate tonal shaping. The Clean channel is characterized by its bright and articulate sound, making it suitable for a variety of genres, including jazz, pop, and rock. The Lead channel, on the other hand, offers greater gain and sustain, perfect for heavier styles like hard rock and metal. These channels can be blended together using the shared EQ, allowing for a truly customizable sonic experience.

Mesa/Boogie's innovative graphic equalizer further enhances the versatility of the DC-3. It features a five-band EQ that allows players to sculpt their sound with precision. This feature makes it easy to dial in the perfect tone for different performance environments, whether in the studio or on stage.

The DC-3 also includes a built-in reverb, adding depth and ambience to the overall sound. This is a valuable addition for musicians looking to enrich their performances without the need for additional effects pedals.

Robust construction and attention to detail are hallmarks of Mesa/Boogie amplifiers, and the DC-3 is no exception. It is built to withstand the rigors of touring and the demands of professional musicians. With its impressive tonal palette, reliable performance, and durable design, the Mesa/Boogie DC-3 continues to be a favorite among guitarists, making it a worthy investment for anyone serious about their craft.