Contents:
Front Panel Features
1. ENGL E670 Tube Amp Head;
2. mains cord;
3. this manual;
4. a pamphlet entitled
.
At the back of the manual, you'll find fold-out diagrams of the front and rear panels.
As you're reading the descriptions of the amp's features, you'll gain a better
understandingofthetopicofdiscussionifyouunfoldandrefertothemaswego!
Activates the onboard , a circuit similar to a very simple preamp channel.
Think of it as an active, tube-driven preamp defeat circuit. Pressing this button (1)
activates the . Note that this circuit can be selected in reciprocation with
thefourchannels,wherebyreciprocation meansthatyoucanactivatethe
irrespective of the currently active channel and vice versa. The LED above the button
lightsuptoindicatethe isactive.ItcanalsobeactivatedviaMIDIprogram
changeorCustomZ-9Footswitch.Itscontrolfeaturesareonthebackoftheamp.
Thisnewfeatureoffersacoupleofcoolapplicationoptions:
1. Use it as a pre effect device tube preamp stage (two triode stages) to enhance the
dynamicrange of yourinstrument's signal. Theinternal preampand its , ,
and channelsarebypassed,andapracticallylinearsignalisroutedtothe
effectsendjacks.
This lets you employ the without EQ as a preamp defeat or bypass, for
example,ifyouwanttouseaneffectdevice'spreampstagetodrivethepoweramp.
2.Use it as anindependent fifth preampchannel without tonecontrols to geta signal
with very nearly linear characteristics. When you activate the without EQ,
solely the power amp Presence knob and Depth Boost feature influence your the
sound, giving you yet another tonal alternative to the Clean channel. Use the rear
panel Sensitivity (85) and Level (80) knobs to set gain and volume levels, or the effect
loops' send levels, for the activated Tube Driver channel. You can saturate the Tube
Driver circuit by dialing in higher gain settings (depending on your guitar's pickup).
ThisgivesyouanotherdefactoCrunchchannelwithtotallydifferenttonalproperties!
that because this circuit takes a direct path from input to the effect loop,
you cannot use the amp's preamp control features to shape its signal. The list of
disabled features includes (22), (21), the (45)
and (42). Power amp functions such as , ,
(20), (43) and (44) remain enabled and have
thesameeffectonthe astheywouldonanyotherpreampchannel.
Instructions for the Prevention of Fire,
Electrical Shock and Injury
Tube Driver
Tube Driver
TubeDriver
TubeDriver
Clean Crunch
LeadI LeadII
Tube Driver
Tube Driver
Reverb Mega Depth Punch Noise Gate
Modern/Classic Master A/B Presence A/B
Depth Boost Power Lo/Hi Speaker A/B
TubeDriver
A tip from the designer:
Please note
1 TUBE DRIVER
6
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