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PREMISE 
 
PREMISE 
 

By developing this amplifier we had few main visions in our minds:  
1 – 

THE AMPLIFIER MUST SOUND GOOD IN A MUSICAL CONTEST AND NOT IN YOUR 

BEEDROOM EXCLUSIVELY.

  

This can be hard to understand to some people, but in every step of our developing 
process we recorded it through a professional studio recording system, making sure 
that all useless frequencies which can fight with bass guitar, synths or maybe cymbals 
in a live/recording environment are gone.

A huge quantity of useless gain and can be 

a  bad  thing  and  we  have  taken  care  of  this  issue  as  well.

 

2  – 

ALL  THE  DISTORTION  CIRCUITS  ARE  100%  TUBE  BASED,  NO  DIODE  CLIPPING 

HERE. 

 

For  this  project  we  focused  on  dynamics.  We  found  by  having  too  much  gain  and 
compression (like for example achieving this with diodes or LEDS) are totally useless for 
this purpose. We

ʼ

re not judging anyone here, only to explain the idea we had on this 

particular amplifier. You will not find anything like a over- saturated / over-compressed 
and  over-gained  sound  here.  Nothing  at  all.  If  you  are  looking  at  this  type  of 
monothematic distortion sounds, you better search somewhere else.

You will find only 

an amp that talks the best with your pick control and volume control, capable to obtain 
a multitude of sounds, even on one channel. Dynamics and control are everything for 
us.

 

3 – 

MIDS IS EVERYTHING. 

The mid frequencies is where your guitar amplifier lives. This mean you need good mids 
and the right frequencies to pop out of the mix without having any volume problem. 
We changed quite a bit in the way that a usual mid control works in almost every guitar 
amplifier. By doing this we have developed a very sensitive mid control on the distorted 
channel, ensuring a very special and musical way to express this delicate frequencies. 
We believe in mids, do not underestimate this frequency range, we

ʼ

re serious about 

this! 

 

 

 
 
 
 
 

 

Summary of Contents for duality D50

Page 1: ...Duality model D50 User Manual...

Page 2: ...OWER SUPPLY pg 3 PREMISE pg 5 SOUND DESCRIPTION pg 6 TECHNICAL FEATURES pg 7 FIRST USAGE pg 9 MIDI AND SAVING A PRESET pg 10 LOOP FX pg 11 D50F FOOTSWITCH pg 11 TUBE LAYOUT AND CABINET pg 12 TROUBLESH...

Page 3: ...MIDI implementation CC and PC double master volume and a high voltage buffered effects loop make Duality your life as guitarist easier than ever before Additional informations and audio video demos c...

Page 4: ...ETURN jacks THIS OPERATIONS CAN LEAD TO FINAL BREAK OF THIS AMPLIFIER IN THOSE PARTICULAR CASES RED SEVEN AMPLIFICATION WILL NO BE RESPONSIBLE FOR DAMAGES TO AMPLIFIER ITSELF OR PEOPLE PLEASE KEEP IN...

Page 5: ...e not judging anyone here only to explain the idea we had on this particular amplifier You will not find anything like a over saturated over compressed and over gained sound here Nothing at all If you...

Page 6: ...nd 7 with a LP style guitar breakup is little earlier Tone stack is way more effective than the vintage 50 60 mono channel amplifiers you can obtain quite a lot of different sounds from this channel T...

Page 7: ...s activated POTS CHANNEL 1 clean channel Bass Treble Volume CHANNEL 2 dirt channel Gain Bass Middle Treble Volume COMMON Master 1 Master 2 SWITCHES CHANNEL 1 clean channel Bright switch bright 1 norma...

Page 8: ...eceive midi signal Midi THRU left midi signal pass thru without modify original messages STORE SWITCH tactile switch for saving combinations of sounds into amplifier digital memory FOOTSWITCH input so...

Page 9: ...heck the impedance of your cab and match the output impedance of amplifier with impedance switch on rear panel than connect the speaker cable from cabinet to amplifier Now you re ready to put Power Sw...

Page 10: ...T Saving a preset is quite easy with Duality it takes only few steps Choose the desired combination of functions channel boost master etc Keep pressed the STORE button for three seconds on rear panel...

Page 11: ...via midi PC CC SUGGESTION if you are hearing some bad clipping sound when loop effect is on you re probably overloading the input of your effect Try to lower the preamp signal by lowering channels vo...

Page 12: ...ase contact us at info redseven amplification com Do not try swap P A tubes without adjusting bias current In the most case this can lead to a simply tube failure in some other you can make some serio...

Page 13: ...to blown turn off the amp and contact Shiva A D DUALITY IS TURNING ON RED LED IS ON BUT WITH NO SOUND First of all be sure to connect speaker cable properly both amplifier as the cabinet Check the inp...

Page 14: ...s soon as possibile WARRANTY DESCLAMER Please do not try to open the amplifier in any case For any problem contact your seller or write to us This amplifier runs at very high voltage that can lead to...

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