Engl RACKHEAD 1060 User manual

RACKHEAD
1060
Dual Tube/Solid-State Channel Bass Amp
Please read this manual and the enclosed safety pamphlet carefully before
operating the amp!
Technical specifications subject to change without notice.
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Table of Contents
Welcome 4
Features 5
Front Panel 6
Channel A (tube-driven) 7
Channel B (solid-state) 8
For Both Channels Shared Switches 9
Rear Panel 10
Hands-Free Remote Control 10
S A C Port ( Z-17 Footswitch) 10
One Bass into Channel A (SWAP not depressed → Channel A on) 11
One Bass into Channel B (SWAP depressed → Channel A on) 11
One Bass into Channel A (SWAP depressed → Channel B on) 11
One Bass into Channel B (SWAP not depressed → Channel B on) 11
Two bass guitars → Channel A and B on 12
Footswitch ( Z-4 Pedals) 12
Tuner Out 12
Bi-Amping 13
Slave Out (Channel A and Channel B) 16
Line Out Balanced 16
Speaker Output 16
External Input 19
FX Loop (effects) 19
Technical Specifications 21
Channel A (tube driven) 21
Channel B (solid-state) 22
Power Amplifier 23
Fuses 24
Logic-Control System 24
Logic-Control System 24
Power Requirements 24
Size and Weight 24
Notes: 25
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P eface
Thank you for purchasing this bass amp; we certainly appreciate your confidence in us
Here’s wishing you lots of fun and musical success in the rehearsal room and on stage!
Your Engl-Team
Welcome
The RACKHEAD 1060 is a dual-channel bass amp Its two-space (2RU) rack-mount chassis houses two
preamps and one stereo power amp
This design gives you quite a few options:
•TWO SEPARATE AMPS IN ONE HOUSING for two instruments and/or two bass players We call this
dual mode.
•A/B OPERATION using two SEPARATE PREAMP STAGES with a stereo power amp with the two
channels bridged to achieve maximum output This is called bridge mode
•BI-AMPED OPERATION via an ACTIVE CROSSOVER
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Featu es
•One TUBE CHANNEL featuring DRIVE and BASS BOOST→ Channel A
•One SOLID-STATE CHANNEL with an EQUALIZER and COMPRESSOR→ Channel B
•STEREO POWER AMP
•Balanced ¼” (6 35 mm) TUNER OUT
•SPEAKON®/ ¼” (6.35 mm) COMBO JACK for speakers
•GROUND-LIFT switchable for DIRECT OUT, PRE/POST, XLR ♂
•Balanced ¼” (6 35 mm) PREAMP (SLAVE) OUT / EXTERNAL POWERAMP IN
•REMOTE CONTROL
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F ont Panel
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Channel A (tube-d iven)
Input A ¼” (6 35 mm) input jack for Channel A
-12dB (switch) Attenuates input gain for hot pickups & active basses
Bright (switch) Adds high-frequency boost to the input signal
Gain (knob) Adjusts input sensitivity
Clip (red LED) The Clip LED may flash now and then, but not light up constantly while playing
Drive (knob) Adjusts the mix of regular and boosted (Drive) signals
Drive (switch) Activates an additional power amp
Equalizer Four-band voicing section (Bass, Lo Mid, Hi Mid, Treble) with a Presence knob
Bass Boost (switch) Boosts low frequencies
Ultra Bright (switch) Boosts high frequencies
Volume (knob) Adjusts Channel A’s volume
reamp A (blue LED) Lights up to indicate Channel A is on
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Channel B (solid-state)
Input B ¼” (6 35 mm) input jack for Channel B
-12dB (switch) Attenuates input gain for hot pickups & active basses
Gain (knob) Adds high frequencies to the input signal
Shape (switch) Activates the midrange filter
Clip (red LED) The Clip LED may flash now and then, but not light up constantly while playing
Shape (knob) Adjusts the midrange filter’s frequency and intensity
Equalizer (four knobs) Two parametric equalizers for adjusting the upper and lower mids
Bass (knob) Boosts/cuts low frequencies
Treble (knob) Boosts/cuts high frequencies
Volume (knob) Adjusts Channel B’s volume
reamp A (blue LED) Lights up to indicate Channel B is on
Equalizer (switch) Activates the equalizer
Compressor (switch) Activates the compressor (not adjustable)
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Fo Both Channels Sha ed Switches
Mute reamp A+B
(switch) Mutes both channels; Tuner Out remains on
Effect A (switch) Each switch activates and assigns the FX loop directly to the given channel They
are mutually exclusive: enabling one disables the other
The Balance knob on the rear panel adjusts the mix of wet (effects) and dry signals
Effect B (switch)
Swap reamp
(switch) Flips the two inputs, assigning jack A to channel B and jack B to channel A
Bridged oweramp
(switch)
Bridges the stereo power amp (default setting); LED lights up to indicate bridged
mode
The power amp is now a mono block delivers 1000W at 8 ohms for both channels!
Master (knob) Adjusts the volume of the power amp
rotect/Limiter
(red LED)
Protect/Limiter-LED lights for about 2 seconds after switching on the amplifier and
goes out afterwards
It may flash now and and then
Constant lightning shows that the limiter of the power amplifier is working to limit
the output power
This has to be avoided otherwise the power amplifier can be damaged
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Rea Panel
Hands-F ee Remote Cont ol
The amp may be controlled remotely using a Z-17 pedal or one, two or three footswitchs such as the
Z-4
S.A.C. ort ( Z-17 Footswitch)
The switches on the Z-17 pedal operate specific functions These
assignments depend on which amp input is in use (Input A or B) and
whether or not SWAP is depressed
Function 1 (Mute) and function 2 (Swap) are always assigned to the
same switch because they are used for both channels
The assignments of functions 3 to 6 vary according to the currently active channel (as indicated by the blue
LED on the amp)
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One Bass into Channel A (SWAP not depressed → Channel A on)
One Bass into Channel B (SWAP depressed → Channel A on)
Switch Function Assigned Channel Remarks
Function 1 Muting Both channels
LED indicates function
Function 2 Swap
Function 3 Drive
Channel A only
Function 4 Bass Boost
Function 5 Ultra Bright
Function 6 Effect Ch A
One Bass into Channel A (SWAP depressed → Channel B on)
One Bass into Channel B (SWAP not depressed → Channel B on)
Switch Function Assigned Channel Remarks
Function 1 Muting Both channels LED indicates function
Function 2 Swap
Function 3 Shape
Channel B only
Function 4 Effect Ch B
Function 5 Equalizer
Function 6 Compressor
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Two bass guitars → Channel A and B on
Switch Function Assigned Channel Remarks
Function 1 Muting Both channels LED indicates function
Function 2 Swap
Function 3 Drive Channel A only
Function 4 Bass Boost
Function 5 Equalizer Channel B only
Function 6 Compressor
Footswitch ( Z-4 edals)
The RACKHEAD 1060 may be remote-controlled using up to three Z-4 pedals
The three stereo jacks are wired as follows::
TIP: Swap TIP: Compressor TIP: Drive
RING: Mute RING: Equalizer RING: Shape
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Tune Out
This stereo jack patches out a balanced composite of the two input signals This circuit is
always enabled regardless of the Mute setting
Tapping its signal using a cord equipped with mono ¼” (6 35 mm) jack plugs will not harm
the amp
Bi-Amping
Use a Y adapter with one stereo and two mono jack plugs to
bi-amp the RACKHEAD 1060
Bi-Amping Out:
TIP: Low-Out
RING: High-Out
Twist the Crosso er Frequency knob to dial in your preferred corner frequency
Using the inte nal ste eo powe amp (Hi and Lo Out):
1 Press the Bridged Poweramp switch
2 Insert the Y cord’s stereo plug into Bi-Amping Out
3 Insert one each mono plug into Ext Input A and B
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4 Adjust the volume with the Master knob
Figure 1: Bi Amping using the internal stereo power amp
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D iving an outboa d powe amp with Low Out and using the onboa d ste eo powe amp fo the
full ange signal:
1 Press the Bridged Poweramp switch
2 Insert a mono plug into Bi-Amping Out.
3 Connect the mono ¼” (6 35 mm) cord to the external power amp’s input
Figure 2: Bi Amping using an external power amp
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Slave Out (Channel A and Channel B)
These two balanced stereo jacks patch out the two channels’ signals Turn the Volume
(A or B) knob to adjust the volume
Line Out Balanced
This balanced output provides a composite of the two channels’ signals
Turn the Le el knob to adjust the volume
The signal may be tapped before (pre = raw input signal) or after
(post = processed signal) the tone controls and FX loop
Speake Output
To drive two cabinets, connect one each to SPEAKON® ports A and
B and press the Bridged Poweramp switch. Each speaker
cabinet’s impedance may be no less than 4 ohms
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Dont't use the center SPEAKON® port
Figure 3: Mono-Block (bridged stereo power amp) with two speaker cabinets or two-channel mode
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A cabinet connected to the center SPEAKON® port must be rated for 8 ohms impedance and able to handle
at least 1000 watts!
Figure 4: Mono-Block (bridged stereo power amp) with one speaker cabinet
A 4-ohm cabinet connected to the cente SPEAKON® po t, when ope ated at high volume levels, may
ove load, shut down o even dest oy the powe amp. This is something you eally want to avoid.
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Exte nal Input
The External Input lets you patch a signal directly to the power amp
This external signal has priority!
FX Loop (effects)
Connect the Send jack to your effects processor's input and the
Return jack to the processor’s output
Dial in the desired mix of dry and wet signals using the Balance knob.
Use the Effect A and Effect B switches to assign the FX loop to the desired channel
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Figure 5: Block diagram
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