Darkglass Electronics Microtubes 900 - 900W Amplifier Head

Darkglass Electronics Microtubes 900 - 900W Amplifier Head

Darkglass Electronics Microtubes 900 - 900W Amplifier Head Analog Preamp Class D Power Module

$999.95
DAR_MICRO900
Darkglass Electronics
The Darkglass Microtubes 900 is a 900 watt bass head with an all analog pre-amp and a Class D power module.  Unique to the Darkglass Microtubes 900 head is its control layout...  

On the right side you will find the clean section which is the foundation of your tone.  The Microtubes 900 clean side features Gain and Master controls and a active 4 band EQ.  Along with Low and Treble controls you will also find Low Mids and Hi Mids, each knob with their own 3-Way frequency selection switch.  

On the left side is the Microtubes Engine which acts as an extra channel that can bring your clean tone to the next level!  Cut through the mix by adding anything from subtle tube break-up, harmonics and natural compression, to even an obliterating distortion tone!  

Darkglass Microtubes 900 Front Panel Features:
  • Input: 1/4" Mono 
  • Passive / Active Switch: Active / Passive mode as many active basses have a hotter signal output which can make the amp distort early (you can leave it on Passive mode even with active basses if such distortion is required... 
  • Microtubes Switch: 
  • Turns on or off the Microtubes Engine to add natural compression, organic harmonic enhancement, and saturation ranging from mild overdrive to high gain bass rage. The Microtubes Engine operates before the clean section (you can therefore use the 4 Band Active EQ for additional tone shaping in addition to the Tone knob described below).
  • Drive Knob: 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.
  • Tone Knob: 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 smoother sound. This is handy if running bright clean EQ settings or cabinets with tweeters.
  • Level Knob: Controls the Microtubes Engine’s output volume.
  • Blend Knob: Mixes between the Clean signal and the Distortion signal (Microtubes Engine).
  • B3K/VMT Switch: Selects between two overdrive voicings: B3K mode will deliver an aggressive, percussive sound while the VMT will bring up the mids for a warmer, more neutral character.
  • Gain Knob: Changes the volume of the signal the Active 4 Band EQ. You can set it low prior to ensuring the cleanest operation possible or set it higher for more aggressive growl.
  • Bass Knob: +-12dB at 80Hz. Changes the low content of the signal.
  • Low Mids Knob: +-12dB of the selected frequency via the LOW MIDS ƒ switch (described below). Changes the lower mid content of the signal.
  • Low Mids Frequency Selector Switch: Use this switch to change the frequency of the low mid band from 250Hz, 500Hz or 1kHZ.
  • Hi Mids Knob: +-12dB of the selected frequency via the HI MIDS ƒ switch (described below). Changes the higher mid content of the signal.
  • Hi Mids Frequency Selector Switch: Use this switch to change the frequency of the hi mid band from 750Hz, 1.5kHz and 3kHZ.
  • Treble Knob: +-12dB at 5kHz. Changes the high content of the signal.
  • Master Knob: Controls the overall volume of the amplifier.
  • Mute Switch: Mutes the amplifier.
  • Dimensions: 26.7x23x6.4 cm (10.5x9.05x2.52 in)
Darkglass Microtubes 900 Back Panel Features:
  • Speaker Output Jack: Connects the amplifier to your cabinet. This Speakon combo jack allows for either Speakon or ¼” speaker cable operation. *WARNING: Do not use an instrument cable with this jack. Using an instrument cable can damage your amplifier.
  • Min-Load Switch: Press when using a 2O load. You can use this control to lower the output if your 4O cabinet is not able to handle more than 500W (you can also get 350W with an 8O cabinet in this configuration).
  • Pre-Amp Out: This output connects the preamp to a different power amp.
  • Power Amp In: Use this input to connect a different preamp to the power amp. (master volume will be disabled)
  • Post-Pre Switch: 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 control.
  • Balanced Output: Connects the Microtubes 900™ preamplifier to balanced equipment (mic preamp, console, recorder, compressor, audio interface, etc.) via a standard XLR jack.
  • Footswitch: The Footswitch allows you to remotely engage and disengage the Microtubes Engine. Hold the footswitch to Mute the amplifier. The VMT/B3K push button will remain operational with the Intelligent Footswitch plugged in. 
  • * 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.
  • AC Socket: Connects the power cord to the amplifier.
  • AC Power On/Off: Makes amazing sounds happen / or not... 

The Intelligent Footswitch is an intuitive yet versatile accessory for your Microtubes 900™. One tap will engage and disengage the Microtubes Engine, while holding for 3 seconds will Mute the amplifier. It is connected to the head via a standard 1/4" cable and it's powered by a microcontroller that sends commands to the head using a proprietary communication protocol.

WARNING!

Do not open the amp. No user serviceable parts inside the amplifier.

Make sure the voltage selector switch on the left side panel is set properly (115V/230V) before plugging the amplifier on the AC outlet.

Never use the amp at a high moisture environment or near liquids.

The Microtubes 900 can deliver more than 115 db of power. Exposure to this level of sound can damage your hearing. Use proper hearing protection if you will be exposed.

The Microtubes 900 can deliver more than 900 Watts. Be sure that your speaker cabinet is able to handle that power. You can reduce the output of the amp by selecting the 2O mode on the rear panel (by the Speakon output jack).

Do not cover the vent holes. The Fan and vent holes are part of the cooling system of the amp. Covering the vent holes can produce overheating of the power amp damaging it.

Do not use an instrument cable as speaker cable. An Instrument cables are not design to deliver power signals going from the amplifier to the speaker.

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