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21. Chorus Rate

Controls the speed of modulation of the chorus
effect.

22. Chorus on/off Switch

Provides manual push switch selection for the
chorus. May also be operated by footswitch
connected to the rear panel jack socket. Set the
front panel switch to the in position for the
footswitch to function (Marshall footswitch P803
included).

23. Master Volume 

Controls the overall volume level of the combo.

MASTER SECTION
(8280 & 8200)

The 8280 and 8200 have identical features up to
item 14, then as follows:

15. Effects level switch  

Selects the level to match your external effects
units (0dB for rack units and -20dB for pedals).

16. Effects Mix 

For mixing the effects to dry signal.

17. Master Reverb 

Controls the level of reverb effect on all channel
selections.

18. Master Volume 

Controls the overall volume level of the unit.

19. Chorus on/off Switch 

Provides manual push switch selection for the
chorus. May also be operated by footswitch
connected to the rear panel jack socket. Set the
front panel switch to the in position for the
footswitch to function (Marshall footswitch P803
included).

20. Mode Select Switch (A/B) 

Manually switches from mode A, flange type
chorus, to Mode B, traditional chorus.

21. Chorus Rate (Normal) 

Controls the speed of modulation of the chorus
effect on the normal channel.

22. Chorus Depth (Normal) 

Controls the modulation depth of the built in
chorus effect on the normal channel.

23. Chorus Rate (Boost)  

Controls the speed of modulation of the chorus
effect on the boost channel.

24. Chorus Depth (Boost) 

Controls the modulation depth of the built in
chorus effect on the boost channel.

REAR PANEL 
(8280 & 8200 only)

25. Mains Input 
26 & 27. Speaker Outputs 

Two parallel wired sockets for connection to
external speaker cabinet/cabinets from right hand
side of power amp.  Note - the combined total
impedance of speaker cabinets should not be less
than 4 Ohms.

28 & 29. Speaker Outputs 

Two parallel wired sockets for connection to
external speaker cabinet/cabinets from left hand
side of power amp.  Note - the combined total
impedance of speaker cabinets should not be less
than 4 Ohms.

30. Line Out Jack 

Filtered low level right hand signal ideal for direct
connection to recording or mixing desks.

31. Line Out Jack 

Filtered low level left hand signal, ideal for direct
connection to recording or mixing desks.

32. Footswitch Jack 

For connection of the supplied two way footswitch
for channel switching and chorus on/off functions.
(Marshall footswitch P803 included).

33. Parallel Stereo Loop Right Return 

For connection to one side of the power amp from
the output jack of an external stereo effects
processor.

34. Parallel Stereo Loop Left Return  

For connection to the other side of the power amp
from the output jack of an external stereo effects
processor.

35. Parallel Stereo Loop Send Jack 

For linking in stereo to the input jack of an

external stereo effects processor.

36. Series Mono Loop Return Jack. 

For connection from the output jack of an external

mono effects processor.

37. Series Mono Loop Send Jack

For linking to the input jack of a mono external
effects processor.

REAR PANEL (8100 only)

The rear panel features the mains input socket plus
two parallel wired sockets for the connection of
loudspeaker systems, the combined total
impedance of which should not be less than 4
Ohms, eg; two 8 Ohms cabinets in parallel.  The
purpose built cabinet for the 8100 is the 140 Watt
compact 4x12 model 8412.

6

VALVESTATE HANDBOOK ART english  1/11/04  10:23 am  Page 6

Summary of Contents for ValveState

Page 1: ......

Page 2: ...e range which was launched over the early 1990 s With this radical development they succeeded in producing something really new for the guitarist Their latest development takes this range one step forward by adding the 8200 and 8280 Bi Chorus models to the already successful Valvestate line I suggest that you read this handbook carefully in order to fully understand the many sounds and functions c...

Page 3: ...le to do this by simulating the performance of a valve power stage Using Bi Polar devices in models 8010 8020 8040 8080 8100 and 8240 and MOSFET devices in models 8280 and 8200 in a new constant current configuration produces the type of high impedance output levels normally only delivered by a valve amplifier This creates speaker reaction similar to that found in valve equipment Ringing harmonics...

Page 4: ...p and the only way to really get to know their full range is to play with them EFFECTS SEND RETURN When linking external effects processors some of the best results can be achieved by using the effects loop The Send jack sends the signal from the amp to the input of the effects unit This then returns from the units output into the Effects Return jack The loop comes in after the amps distortion cir...

Page 5: ...ions 13 Contour Control This sweeping control shifts the mid band voicing of the boost channel to give amazing versatility to your overdrive sounds When used in conjunction with the 3 band EQ this control is devastating 14 Volume Control Controlling the overall level of the boost channel this allows volume balancing between the two channels MASTER SECTION 8080 8100 15 Effects Send Jack For linking...

Page 6: ...PANEL 8280 8200 only 25 Mains Input 26 27 Speaker Outputs Two parallel wired sockets for connection to external speaker cabinet cabinets from right hand side of power amp Note the combined total impedance of speaker cabinets should not be less than 4 Ohms 28 29 Speaker Outputs Two parallel wired sockets for connection to external speaker cabinet cabinets from left hand side of power amp Note the c...

Page 7: ... SECTION 12 Master Reverb Gives overall control of the depth of reverb effect for both channels 13 Pre amp Output Direct output from the combo pre amp This gives a signal suitable for driving an external power amp or the input of an effects processor 14 Power Amp In Input directly into the combo power amp This allows the use of an external pre amp eg 9004 or acts in conjunction with pre amp out as...

Page 8: ...e control is advanced the amount of overdrive increases Full Gain Full Shred 3 Boost Select Single switch which selects Normal clean crunch sounds or Boost overdrive sounds 4 Master Volume This controls the overall volume of the amplifier on either channel selection 5 7 Bass Middle Treble Three band equalisation for tonal selections on the normal or boost channel These controls interact so it is b...

Page 9: ......

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