Darkglass Electronics Microtubes X 900 Bass Amplifier Head

Darkglass Electronics X900 Overview

Based on the X Series pedals, the Microtubes X 900 from Darkglass Electronics offers 900W of potent Class-D amplification and exceptional accuracy and control. Sporting 6-band graphic EQ, high- and low-pass filter control, and the versatile Microtubes X 2-band distortion engine, you can go from crystal clear to aggressively overdriven with ease.

By compressing the lows and distorting the highs in separate bands with an adjustable frequency crossover, Microtubes X 900 provides incredible tonal control. You can manually activate or deactivate the distortion engine, engage compression on the clean channel with dedicated volume control, and mute the whole amp head directly. Turn on Active mode for more headroom, precisely control high-frequency distortion (Drive), and find the perfect blend of compressed lows and distorted highs (Mix). I/O is extensive, including MIDI input (with CC and PC support), pre- and post-DI XLR outputs, an FX loop, USB-C for Darkglass Suite control, aux in for jamming to your favorite tunes, and a headphone output for silent practice.

Microtubes X 2-Band Distortion Engine

The Microtubes X Engine allows you to compress and distort your bass signal in two separate bands, solidifying the clean low end and distorting the highs to go from articulate to aggressive. The Microtubes X Engine operates before the EQ section.

Comprehensive 6-Band EQ

• Bass adjustment of 12 dB at 80 Hz
• Mids control of 12 dB at 250 Hz, 500 Hz, 1.5 kHz, and 3 kHz
• Treble boost or cut of 12 dB at 5 kHz
• LPF cutoff frequency control from 50 (sub bass) to 500 Hz (to preserve some clean mids)
• HPF cutoff control from 100 Hz (for thick, fuzzy saturation) to 1 kHz (for sharp definition)

Passive or Active Mode

With the dedicated push-button switch you can change from passive to active mode. If your bass is active it can have a hotter signal, making the amp distort earlier.

Pre-DI and Post-DI XLR Outputs

With the Pre-DI output, you can send a balanced copy of your clean signal to your mixing console, mic preamp, interface, and more. With the Post-DI outpt, you can connect the Microtubes X 900 preamp to balanced gear (mic pres, recorders, compressors, interfaces, etc.) via a standard XLR connector. The Post-DI output sends a signal that is already processed by the preamp section, including gain, distortion, compression, EQ, and cabinet simulation.

Darkglass Suite

Using the desktop version of the Darkglass Suite allows you to select and use any of our available impulse responses from the provided library in addition to loading your own custom impulse responses. In addition, you can control the amplifier channel settings for the Super Intelligent Footswitch.

Optional Intelligent Footswitch

The Intelligent Footswitch is an intuitive yet versatile accessory for your Microtubes X 900. One tap will engage and disengage the Distortion, 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.

Extra Features

• Active cooling fan with automatic variable adjustment
• User-swappable IRs for the 3 cab-simulation slots
• Parallel 2.5-ohm speakON-1/4" combo speaker output jacks
• Ground lift for eliminate grounding loops in the DI signal chain
• Manual headphone volume control
• Separate distortion channel, clean channel, and master volume controls