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USER MANUAL
KHE AUDIO ELECTRONICS
AMPLIFIER CABINET SELECTOR
ACS – Series
A Switching-System for Guitar Amplifiers, Speaker
Cabinets and Load Boxes.
"... focus on your sound and creativity, instead of wasting your time with
plugging cables and waiting for amps to heat-up!"
IMPORTANT: READ THIS MANUAL BEFORE USING THE SWITCHER !
V1.0 2020-05-08
www.KHE-AudioElectronics.com
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Table of Contents
Related Manuals for KHE AUDIO ELECTRONICS ACS Series
Summary of Contents for KHE AUDIO ELECTRONICS ACS Series
- Page 1 USER MANUAL KHE AUDIO ELECTRONICS AMPLIFIER CABINET SELECTOR ACS – Series A Switching-System for Guitar Amplifiers, Speaker Cabinets and Load Boxes. "... focus on your sound and creativity, instead of wasting your time with plugging cables and waiting for amps to heat-up!"...
- Page 2 Electronics (or associated companies or directors) for any damage or injury caused while using the ACS. As it is impossible for KHE Audio Electronics to ensure the user is following these instructions, the user must take full responsibility in the suitability of purchasing a KHE product for his or her use.
- Page 3 B) let the effect completely ring out before disabeling / changing the amp. These rules also apply to permanentely connected effect pedals in the fx-loop of a single amplifier. Ignoring these rules can damage the ACS or the connected equipment. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 3 / 23...
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Page 4: Table Of Contents
ACS 8x4 ASX 8 CSX 8 AFX 8 Feature List MIDI Control Link Mode Link Mode – Setup Examples Setup Menu Things To Know Technical Specifications Warranty Declaraction Of Conformity KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 4 / 23... -
Page 5: Controls & Display
MIDI PC – Preset Changed ORANGE, blinking: System Error POWER SWITCH Switch to power on the ACS. Amplifiers are always protected by an internal load resistor, even when the power-switch is off. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 5 / 23... -
Page 6: Guitar Input
A special mute circuit removes all switching noise like clicks and pops - switching between amps or loads is more silent than most amps channel switching! KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 6 / 23... -
Page 7: Cabinet & Load Switching
Activate the Dual Cab Mode by entering the SETUP MENU and push AMP-SWITCH 2. See « SETUP MENU » for more details. The load switching is completly passive with no active components. High-quality relays were used for the switching procedure. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 7 / 23... -
Page 8: Attenuator Insert
The KHE ACS is compatible with all type of attenuators : Boss Waza Tube Expander, UA OX Top Box, Palmer Power Pad, SPL Reducer, Harley Benton PA-100, Bugera PS1, TAD Silencer, Jet City Attenuator, Weber Attenuators, Koch Attenuators, THD Hotplate, Rivera Attenuators and many more. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 8 / 23... -
Page 9: Fx-Loop Switching
Otherwise, there is a change of nasty sounds while switching amps, because of the different signal levels saved in the delay. This is highly dependent on KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com... -
Page 10: Tuner Output
In case a configuration cannot be loaded (due missing or removed cabinet), the amplifier won’t be enabled. The Recall Mode gets deactivead automatically once the LINK MODE gets activated. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 10 / 23... -
Page 11: Setup Procedure
D) let the effect completely ring out before disabeling / changing the amp. These rules also apply to permanentely connected effect pedals in the fx-loop of a single amplifier. Ignoring these rules can damage the ACS or the connected equipment. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 11 / 23... -
Page 12: Acs 4X2
The KHE ACS 8x4 is an amp switcher for 8 amplifiers and 4 speaker cabinets or load boxes in compact 19” 1u format. FX-Loop switching functionallity can be added by adding a AFX 8 to the setup. Features: Attenuator Insert, Link Mode, MIDI Control, Dual Cab Mode, Tuner Output KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 12 / 23... -
Page 13: Asx 8
MUST always be connected to CABINET 1 output. If no load is connected to the ASX, the operation will be blocked and no output can be activated. Make sure to power on the CSX before the connected amplifier. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 13 / 23... -
Page 14: Afx 8
4) Push and hold the FX/CTRL button on the AFX for more than 3 seconds to exit the setup menu. Now the AFX is syncronized to it’s amp switcher. After the first syncronization, the configuration will be recalled automatically. FEATURE LIST KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 14 / 23... -
Page 15: Midi Control
You can toggle the FX-Loop state of the currently active amplifier by sending MIDI CC 127 or disable all active devices by sending MIDI CC 126. A maximum of 10 switchers can be addressed with MIDI CC commands. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 15 / 23... -
Page 16: Link Mode
#2. Repeat this wiring scheme for any number of switchers. The communication lines are used and needed to let the switchers talk together (exchanging status and commands). Setup speaker and load lines Link the speaker lines of the switchers together by a short speaker patch cable (1,5mm KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 16 / 23... - Page 17 When linking multiple ACS together, the Attenuator Insert feature will be limited, as the S-LINE jacks will used for the linking of the speaker lines. If you want to use the Attenuator Insert in Link Mode, shoot us a message to discuss setup possibilities. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 17 / 23...
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Page 18: Link Mode - Setup Examples
ACS 8x4 + AFX 8 CABLES 1x MIDI Patch Cable (for linking Communication Lines) 1x Speaker Patch Cable (for linking Speaker Lines) 1x Instrument Patch Cable (for linking Guitar Input Signal) KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 18 / 23... -
Page 19: Setup Menu
MIDI Channel 12 = LED 3 ON, LED 4 ON, all others OFF EXIT SETUP MENU Push and hold the CTRL SWITCH more than 2 seconds. When the CTRL LED is continously on red, release the button. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 19 / 23... -
Page 20: Things To Know
CABLE LABELING It’s useful to equip all cables with numbered labels on both ends for easy identification of the connected amplifier to avoid wiring faults. Use masking tape or such. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 20 / 23... - Page 21 Got more questions? Something missing in this manual? Shoot us a message at info@khe-audioelectronics.com KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 21 / 23...
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Page 22: Technical Specifications
WARRANTY All KHE ACS units are covered by a 2-year warranty. KHE Audio Electronics shall not be liable if the damage was caused by inappropriate use or if the units are not connected as described in this user manual. Damage to this device by improperly connected and/or grounded equipment is not covered under warranty. -
Page 23: Declaraction Of Conformity
Please also carry the packing to an environmentally fair disposal. Cardboard boxes can be transferred with wastepaper collections or to the public collecting stations for recycling. Foils of the shipment are collected by the local waste management company and are forwarded to environmentally fair disposal. KHE ACS SERIES – USER MANUAL www.KHE-AudioElectronics.com 23 / 23...
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