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Introduction
WELCOME ABOARD AGAIN!
M
any thanks for adding a VOX Valvetronix VTX combo to your sonic arsenal.
We’re sure it’ll give you countless hours of great guitar tones that will
feel
as good as they sound! You may have noticed that this is an addendum to
the original Combo Manual. In this we’ll cover the new NeoDog speakers,
new
cabinet construction, correctly connecting external speakers and the new Imped-
ance Select Switch for your AD60VTX or AD120VTX combo. Everything else, and
I mean everything else is already covered in the original Combo Manual... I mean
Guitarists Guide
! So if you’re sitting down, rocking out and have a few questions,
crack open the “Guide” man! It’s all there... except for what’s here.
Right. Moving on. You’ll notice that almost all the functions of these combos are
identical to the original AD60VT and AD120VT combos. So what’s different and
why am I reading this addendum do you ask? Did you read the above? Speakers,
cabinets, connecting the speakers and impedance settings, that’s why you’re read-
ing this! Let’s move on shall we?
The new AD60VTX and AD120VTX combos both feature newly designed Custom
VOX/Celestion Neodymium magnet 8 Ohm speakers (dubbed
NeoDog
) that are
highly efficient, extremely lightweight and SOUND GREAT.
In addition to the new NeoDog speakers, we now house them in an all-new up-
graded ply cabinet for improved tonal balance.
As if that weren’t enough we’ve also fine-tuned the power section of this amplifier to
run more efficiently with the new NeoDog speakers.
On the back panel you’ll also notice the inclusion of an Impedance Select Switch.
What this does is allow you to hook up external speaker cabinets and maintain
maximum power. As mentioned the internal speakers are 8 Ohms so when using
the internal speakers only set the Impedance Selector to 8 Ohms. If and when you
hook up another cabinet, you have to make sure the external cabinet is either 4
Ohms or 8 Ohms only. Do not use a 16 Ohm cabinet. Please read below for cor-
rectly hooking these up.
IMPORTANT NOTE: DO NOT use an external speaker cabinet with a Wattage rating of
less than 30 Watts (or 40 watts if you are using a 4 Ohm external speaker cabinet), or less
than the output power you’ve selected with the POWER SELECT control (see page 19 in
A
Guitarists Guide
). If you ignore this, you could end up blowing a speaker— and that’s not
recommended.
ANOTHER IMPORTANT NOTE: ALWAYS use speaker cables (unshielded) to connect
speaker cabinets. NEVER use guitar (shielded) cables.