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アンプ Duncan 84-40のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Duncan 84-40 14 ページ。 Tube amplifier

84-40 TUBE AMP FRONT PANEL

PERFORMANCE APPLICATIONS AND GUIDELINES

The name of the 84-40 Tube amp reflects its design - the amp uses a quartet of EL-84 type tubes

to produce 40 watts of power.

The EL-84 tube was chosen specifically for its rich, sweet toile qualities, especially when pushed

to distortion. This tube was widely used in many early amplifiers, but it is most famous for its use

in the Vox AC-30. This was the amp used on the early Stones, Beatles and Yardbirds records.

The EL-84 has a wonderful musical character - it sings, it growls, and it has great dynamic

response. The harder you play, the more it distorts and sustains. Back off on your attack and it

"idles", cleaning up the sound. In short, EL-84's are a ton of fun!

The first thing you'll probably notice about your amp is that it's very loud for its size. We wanted to

make an amp for the working guitarist- something that could cut it in most club and casual gig

situations. The 84-40 Tube has more than enough kick to keep up with a loud drummer and bass

player. In fact, when we were testing prototypes in clubs around town, the 84-40 Tube had no

trouble holding its own on a stage full of 50 and 100-watt amps.

Using the 84-40 Tube live is simple. Just use your ears to dial in the EQ settings you need,

depending on the type of pickups in your guitar, the demands of the job, etc. Switch channels to

find a balance between clean and overdrive settings. A typical lead/rhythm sound setting might

be:

EQ/TONE CONTROLS

Even though both channels share the same tone controls, the 84-40 Tube amp has been

carefully voiced for a smooth natural transition between channels. By switching back and forth a

few times and adjusting the gain controls of each channel, it will be easy to get the proper tone

and volume balance between clean and distortion sounds.