Mesa/Boogie Amp Bedienungshandbuch PDF herunterladen (Seite 7)

PAGE 3

EL-84 A

UBE

TEREO

POWER

2A SB

FUSE

1A SB

STANDBY

VOLUME

PRESENCE

VOLUME

PRESENCE

HANDBUILT IN USA

PATENTED 4,713,624

20/20 D

YNA

-W

ATT

OWER

FRONT PANEL CONTROLS:

PRESENCE:

These controls “open-up” the 20/20 producing brightness and sparkle for clean sounds at higher settings

or sizzle and edge when set high for distortion sounds. At lower PRES-

ENCE Control settings you can darken and compress lead sounds

making them warmer and fatter. Turning the PRESENCE Controls to

zero “chokes the brights” completely, making the 20/20 great for jazz

clean sounds or round vocal lead work.

VOLUME:

These two potentiometers (pots) control the volume level of each side or channel of the 20/20. Since there’s

only one Standby switch on this unit, these two controls may be used as channel muting controls.

NOTE: If only one speaker is to be used on one channel and no

speaker load is present on the other, always turn the unused chan-

nels VOLUME Control to zero. To prevent oscillation (motorboating

like sound) turn the PRESENCE Control of that channel all the way

up.

POWER & STANDBY:

These two toggles located next to the 20/20’s left and right channel VOLUME Controls deliver

A.C. Mains voltage and D.C. filament voltage. When powering up cold - make sure the STANDBY switch is in the Standby

position when flipping the POWER switch to the ON position. Wait at least 30 seconds before flipping the STANDBY switch

to the ON position. This procedure reduces shock on cold tubes and prolongs their toneful

tube life. Remembering to use the STANDBY switch on set breaks also prolongs tube life.

NOTE: Power tube life varies depending on many factors i.e. how much you play, how

you treat your equipment etc. We’ve found that most discerning pro’s who use their gear

five to seven nights a week start noticing some tone loss somewhere around 8 months to a year. Some people, however,

use the same set of power tubes for years with no complaints.

We recommend changing your power tubes once a year if you play alot. This way you’re ensured of smooth operation and

optimum tone. Always use Mesa power tubes of matching color codes whenever possible. These are matched correctly

with each other and hammer tested and actually cost less than the so called matched competitors in most cases. Also, it

keeps your 20/20 warranty intact.

PRESENCE

PATENTED 4,713,624

OWER

VOLUME

EL-84 A

VOLUME

PRESENCE

PATENTED 4,713,624

OWER

VOLUME

EL-84 A

VOLUME

PRESENCE

POWER

2A SB

FUSE

1A SB

STANDBY

VOLUME

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Kommentare zu diesen Handbüchern

Keine Kommentare

Mesa/Boogie Amp Bedienungshandbuch Seite 7

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Audioverstärker Mesa/Boogie Amp