Microtubes 200 Manual

200W Bass Amplifier



Drive: This knob controls the amount of distortion that the Microtubes B3K® Engine will deliver. It will change from a soft warm overdrive to a massive modern distortion sound.
Blend: Use this knob to mix between the Clean signal and the Distortion signal (Microtubes B3K® Engine).
Bass: +-12dB at 80Hz. Use this knob to change the low-end content of the signal.
Low Mids: +-12dB at 1kHz. This knob controls the low mid content of the signal.
High Mids: +-12dB at 3kHz. This knob controls the high mid content of the signal.
Treble: +-12dB at 5kHz. Use this knob to change the high content of the signal.
Master/Mute: Use this knob to control the overall volume of the amplifier. Use this push knob button to mute the amplifier.

Technical Specifications

Input Impedance: 2.2MΩ
Load Impedance: 3Ω Minimum
Aux In Input Impedance: 10kΩ
Power Output: 200 W RMS @ 4Ω @ 1 % THD+N, 1 kHz sine
100 W RMS @ 8Ω @ 1 % THD+N, 1 kHz sine
Maximum Power Consumption: approx. 250VA
AC Input Power: 100-120/210-250 VAC
Cycles: 50/60 Hz


Width: 150 mm / 5,9″
Length: 157 mm/ 6,18″
Height: 52 mm / 2,04″
Weight: 965 g / 2,12 lb



  • There are no user-serviceable parts inside the amplifier. Do not open the amp.
  • Never use the amp in a high moisture environment or near liquids.
  • The Microtubes 200 can deliver more than 100 dB of power. Exposure to this level of sound can damage your hearing. Always use proper hearing protection when exposed.
  • The Microtubes 200 can deliver more than 200 watts. Be sure that your speaker cabinet is able to deliver that power.
  • 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 lead to overheating and damage to the amplifier.
  • Do not use an instrument cable as speaker cable. An instrument cable is not designed to deliver the type of power sent from the amplifier to the speaker.


Please register for your warranty at http://mypedal.darkglass.com. The Microtubes 200 is under warranty to the original owner for a period of two years against manufacturing defects in the country where the product was originally purchased.

If you experience a problem with the unit, please contact support@darkglass.com to receive a Return Authorization number or for information on the nearest authorized repair center. A copy of your original receipt must be included with all warranty repairs. You are responsible for all shipping charges.

The unit must be shipped to us freight prepaid. We will return the unit freight collect. Darkglass Electronics Oy is not responsible for shipping damage either to or from our service center. Claims must be filed with the carrier. For repairs please contact your local dealer or distributor for your country’s specific warranty period and repair procedures.

Darkglass® is a registered trademark of Darkglass Electronics Oy.


In the interest of continuous improvement, specifications are subject to change without notice. If you have any questions, please don’t hesitate to contact us at www.darkglass.com The manufacturer claims that the above product fulfils the requirements as set by EN55013, EN55020, EN60555-2, EN60555-3, RoHS, WEEE.

1176®, and SSL® are registered trademarks of their respective companies. Names of factory modes are intended for descriptive purposes only and should not be construed as an endorsement or affiliation with the companies or products named.


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 protection against harmful interference in residential installations.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. There is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.