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FAN : The fan forces air inside out the amp to help 

the heatsink system to cool the amp. Be sure to 

never cover the vent holes.

AC SOCKET : Connects the power cord to the 

amplifier.

AC POWER ON/OFF : Turns the amplifier on or off.

Use a regular mono instrument cable to connect the 

amplifier to the footswitch.

Remove the cable from the footswitch jack in the 

rear panel if you want to control the amp from the 

front panel.

The Microtubes 900 will only work with our 

proprietary Intelligent Footswitch (included with the 

amplifier). A generic Footswitch will not work with 

the Microtubes 900.

 

Summary of Contents for microtubes 900

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Page 3: ...g you cut through the mix while adding anything from subtle tube break up harmonics and natural compression to obliterating distortion DESCRIPTION The Microtubes Engine can be engaged via the front panel or our own digitally controlled Intelligent Footswitch jack on rear panel Besides engaging the Microtubes circuitry you can hold the actuator to Mute the amplifier We equipped the power module wit...

Page 4: ...ing in addition to the Tone knob described below DRIVE Controls the amount of distortion that the Microtubes Engine will deliver It will change from a soft warm overdrive to a massive modern distorted tone FEATURES FRONT PANEL TONE Controls the high harmonic content of the Microtubes Engine via a variable low pass filter crank it up for additional attack and definition or dim it down for a smoothe...

Page 5: ... below Changes the lower mid content of the signal LOW MIDS ƒ Use this switch to change the frequency of the low mid band from 250Hz 500Hz or 1kHZ HI MIDS 12dB of the selected frequency via the HI MIDS ƒ switch described below Changes the higher mid content of the signal HI MIDS ƒ Use this switch to change the frequency of the hi mid band from 750Hz 1 5kHz and 3kHZ TREBLE 12dB at 5kHz Changes the ...

Page 6: ...e power amp master volume will be disabled POST PRE Selects what signal will be delivered by the DI output Selecting PRE sends a clean copy of your input bass signal Selecting POST delivers a signal processed by the preamp of the amp gain distortion eq master etc GROUND LIFT Lifts the ground of the DI XLR output If a ground noise in you DI signal is experienced try changing the setting of this con...

Page 7: ...OFF Turns the amplifier on or off Use a regular mono instrument cable to connect the amplifier to the footswitch Remove the cable from the footswitch jack in the rear panel if you want to control the amp from the front panel The Microtubes 900 will only work with our proprietary Intelligent Footswitch included with the amplifier A generic Footswitch will not work with the Microtubes 900 ...

Page 8: ... DRIVE VMT TONE CLEAN LEVEL BLEND INPUT PASSIVE ACTIVE MICROTUBES CLEAN MICROTUBES ENGINE VMT B3K BASS TREBLE B3K LO MID FREQ HI MID MASTER POWER MUTE POST 2Ω PRE PRE OUT POWER IN SPEAKER OUTPUT DI OUTPUT GAIN FREQ ...

Page 9: ...aker For more information frequently asked questions FAQ and troubleshooting please visit http www darkglass com micro tubes900 faq EMC EMI This equipment has been tested and found to comply with the limits for a Class B Digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protec tion against harmful interference in residential installations This equi...

Page 10: ...center Claims must be filed with the carrier Repairs outside the EU please contact your local dealer or distributor for your country s specific warranty period and repair procedures Darkglass Microtubes and Microtubes Engine are registered trademarks of Darkglass Electronics Oy Hernesaarenranta 3L 00150 Helsinki Finland SPECIFICATIONS Input Impedance 1MΩ Minimum Load Impedance 4Ω 2Ω in 2Ω mode Max...

Page 11: ... Consult the dealer or an experienced radio TV technician for help ...

Page 12: ...DARKGLASS ELECTRONICS HERNESAARENRANTA 3L 00150 HELSINKI FINLAND WWW DARKGLASS COM FOLLOW US ...

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