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Rear Panel

14 Master B - Hi Gain: 

Located after the effects loop in the signal chain, this knob determines the

      overall volume of the power amp when Hi Gain preamp mode is selected. Note that this is a dedicated 
      knob with a fixed assignment to Hi Gain mode. However, when you connect a footswitch to jack 19 or 
      21, the knob is no longer assigned exclusively to Hi Gain mode. This means that you can select the 
      master B or the master A volume knob via footswitch to activate two different master volumes for each 
      preamp mode. To learn more about selecting modes and master levels, see section 19 or 21. 
      The green LED next to the knob lights up when this knob determines the master volume level.

15 Stand By:

 Power amp standby switch: Use this switch to silence (0 position) the amp when you 

      take a lengthier break. The amp's tubes stay warm, which means that it is ready to roll immediately 
      when you switch it back to full power. The standby switch is also well-suited for muting the amp for 
      brief breaks, for instance when you're switching guitars.

16 Power:

 AC power on/off.

19 20

22 23 24

25

17 18

26 27

21

F

OOTSWITCH

M

ASTER

A/B

C

ONTOUR

C

L E A N

/L

EAD

G

AIN

 L

O

/H

I

P

OWERAMP

 O

UTPUT

8 O

HMS

 P

ARALLEL

1 x 8 O

HMS

2 x 16 O

HMS

16 O

HMS

REPLACE FUSE

ONLY WITH SAME TYPE

AND RATING !

4 O

HMS

 P

ARALLEL

1 x 4 O

HMS

2 x 8 O

HMS

DO NOT OPEN !

RISK OF ELECTRIC SHOCK !

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE !

CAUTION !

100 W 

All-Tube Guitar Amp Head

Ritchie Blackmore Signature 100

T

YPE

 E650

designed by Horst Langer 

MADE IN GERMANY

!

F.X.L

OOP

S

END

R

ETURN

B

ALANCE

DRY EFFECT

CAUTION !

Connect To

        Custom 

Footswitch

Only !

C

USTOM

F

OOTSWITCH

P

ORT

R

17 AC SOCKET: 

Connect an AC cord here

      

ATTENTION:

 

Ensure you use an intact AC cord with an insulated plug only! 

      Before you power the amp up, ensure the voltage value printed beside 
      the AC socket corresponds to the available current.

18 AC FUSE BOX: 

Contains mains fuse (rear chamber) and spare fuse (front chamber).

      

NOTE:

 

Ensure replacement fuses bear identical ratings (refer to the table)!

19 Footswitch Master A - B; Contour

1/4" Stereo jack designed to take a dual footswitch for 

      the following functions:  
      1. Switching between the two Master volume controls A and B (mono terminal)
      2. Contour switching (stereo terminal).
      

Note

 that when you connect a footswitch to this jack, the master A/B switching option is reassigned 

      to the footswitch, allowing you to activate the volume level of each knob irrespective of mode    
      (Lo or Hi Gain).

20 Footswitch Clean - Lead; Gain Lo - Hi

1/4" Stereo jack designed to take a dual footswitch 

      for the following functions:  
      1. Channel switching Clean - Lead (mono terminal)
      2. Gain Lo - Hi (stereo terminal).

21 Custom Footswitch Port:

 Connect the ENGL Custom Footswitch Z-5 (optional) to this port 

      (Sub-D, 9-pin). This special footswitch lets you activate the four channels (Clean, Crunch, Soft     
      Lead, Heavy Lead) directly via dedicated buttons. Master A/B and Contour are activated via two     
      additional buttons.When the Z-5 footswitch is connected, the Clean/Lead, Gain Lo/Hi and Contour 
      buttons on the front panel as well as footswitch Jacks 19 and 20 are disabled.
      

Note

 that when you connect a footswitch to this jack, the master A/B switching option is reassigned 

      to the footswitch, allowing you to activate the volume level of each knob irrespective of mode    
      (Lo or Hi Gain).

22 F.X. Loop Send: 

Signal output for the Effects loop. Connect this output to a signal processor’s 

      input/return jack via a shielded cable with 1/4" plugs.

23 F.X. Loop Return:

 

Signal input for the Effects loop. Connect this input to a signal processor’s 

      output/send jack via a shielded cable with 1/4" plugs.

24 Balance

FX mix control for the Effects loop: Rotate the knob to the "DRY" position for the pure 

      amp signal, i.e. no effect on the signal. Turn clockwise to blend in an effect connected to the loop 
      to the dry signal (parallel/passive). At the "EFFECT" position, only the wet signal, i.e. the signal 
      sent from the FX device is fed to the power amp (serial/passive).

      NOTE: 

If no effects processor is connected to this loop, leave this control in the "DRY" position!

25 Poweramp Output 4 ohms parallel

4 ohms speaker output jacks, internal parallel signal 

      path for the connection of one 4 ohms cabinet or two 8 ohms speaker cabinets.

26 Poweramp Output 8 ohms parallel

8 ohms speaker output jacks, internal parallel signal 

      path for the connection of one 8 ohms cabinet or two 16 ohms speaker cabinets.

27 Poweramp Output 16 ohms: 

16 ohms speaker output jack, for the connection

      of one 16 ohms speaker cabinet.

     NOTE:

 

Never operate the amplifier without a sufficient load, otherwise you may damage or 

      destroy the power amp! Ensure your cabinet’s specifications match the respective output’s specs.

Possible speaker cabinet options: 

1 x 4 or 2 x 8 ohms or 1 x 8 ohms or 2 x 16 or 1 x 16 ohms. 

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