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Mesa/Boogie TransAtlantic TA-30 - The Modes: Normal, Top Boost

Mesa/Boogie TransAtlantic TA-30
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PAGE 3
You will experience more footswitching noise (pop) when switching between Channels when only one is set to the 15W power 9.
setting. This is due to the more radical voltage changes that occur when knocking the power section down to the 15W level from
one of the higher power modes. (Using both Channels in 15W will not create excess noise as the voltage doesn’t change). May
we suggest when configuring your Channels for live performance footswitching applications, try using the 30 and 40W power
modes whenever possible as the voltage swings are not as great. This will provide the quietest footswitching performance.
It is normal to experience a slight increase in background hum when using the 30 watt Power Mode in Channel 1 NORMAL and 10.
TOP BOOST. This is a result of the power amp “listening harder” to the preamp because the Class A wiring of this Power Mode
has the output tubes biased “more on” even when they are not amplifying a signal.
Now that you have an overview of the TA-30, let’s get more specific with the Modes and controls to learn how they can help you
achieve the sounds you are looking for.
Th e MO d e s :
CHANNEL 1:
NORMAL:
This mode takes its architecture from the TOP BOOST circuitry and removes gain, adds brightness and fills out the
bottom with a little more air and dimension. It works best for clean work and provides substantially more headroom than TOP BOOST.
NORMAL is the choice when you need more stripped urgent clean sounds that will tuck up nicely in a mix.
It is probably not the best choice for overdriven or clipped rhythm sounds as there is not quite enough gain
to smooth out the jagged edges, and because of the added brightness it can sound a bit toward the ragged
and buzzy when pushed too hard, especially with weaker pickups.
TOP BOOST:
This Mode represents our tribute to the amazing legacy of the British darling VOX. The TOP BOOST circuit has
appeared in countless Boutique renderings of the last 20 years and is considered one of the must have staples in classic Rock guitar.
Out of respect we chose to refrain from treading on this hallowed ground until such time as we could bring something worthwhile to
the party… not to simply duplicate, but rather enhance this iconic sound. Well, with the inclusion of our patented Multi-Watt
Chan-
nel Assignable Power and several other “trade secrets” we’ve unearthed over the last 40 years of amp design, the time has come to
redefine a classic. Only you can be the judge if we’ve added something beautiful to the original, but our comparisons and the com-
ments of our brothers in tone around the world… including our English ones, leave us feeling pleased with a job well done.
TOP BOOST is great for many things from urgent jangly cleans with a bit of attitude, to full on saturated solo sounds, but probably
its greatest asset is seen when riding the edge of clip. This Mode can transition almost seamlessly from clean to saturation with just
the input from your pick - for there are many subtle graduations in the TA-30 within this historically small realm that now widen it to
create an entire empire - instead of a narrow, hard to fine-tune border region.
The choices found in the Multi-Watt Power switch greatly expand this edge of clip area and adds color to the mix along with harmonic
and volume changes. For the most traditional response the 15 and 30W settings will provide the best blend of characteristics and the
HELPFUL HINTS: (Continued)
NORMAL
30 30
HI 1
TOP BST
40W
FT
SW
15W
TWEED
HI 2
40W
15W
MASTER
PULL
CUT /
BOOST
PULL
GAIN/

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