H&K Tubeman plus

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Page last updated Dec 18, 2025

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Description

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The H&K Tubeman Plus Rack Preamp (circa 1993) is a tube guitar preamplifier with optional MIDI controlability. It is a 3 channel amplifier with independant Master Volume controls for each channel and shared EQ controls. The is a shared gain for Clean/ Crunch and a separate gain for the Lead channel which also has a switch to revoice the preamp for a LEAD 2 sound. This preamplifier uses a single 12AX7A preamp tube.

More details: http://www.stagecue.com/tm_plus.html

Product specs

Brand	Hughes & Kettner
Model	Tubeman Plus
Finish	Black
Year	1990s
Categories	Guitar Preamps
Color Family	Black
Electronics	Tube
Pedal Format	Rackmount
Reverb	None

FAQs

What is the primary function of the Hughes & Kettner Tubeman Plus?: The Hughes & Kettner Tubeman Plus serves as a guitar preamp, designed to provide tube-driven tones and can be used for both direct recording and live performances.
Is the Hughes & Kettner Tubeman Plus suitable for live performances?: Yes, the Tubeman Plus is suitable for live performances as it offers tube-driven sound quality and features a rackmount format for easy integration into a live rig.
Does the Hughes & Kettner Tubeman Plus include built-in reverb?: No, the Hughes & Kettner Tubeman Plus does not include built-in reverb, allowing users to pair it with their preferred external reverb effects.
What type of electronics does the Hughes & Kettner Tubeman Plus utilize?: The Hughes & Kettner Tubeman Plus utilizes tube electronics, which are known for delivering warm and dynamic guitar tones.
How does the rackmount format of the Tubeman Plus benefit guitarists?: The rackmount format of the Tubeman Plus allows for easy integration into studio and live rack setups, providing a compact and organized solution for guitarists.

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about H&K Tubeman plus.

Setup and maintenance

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Bypassing the Marshall's preamp by connecting the Tubeman Plus output directly to the effects loop return improves sound quality significantly.
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Features and functionality

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The Tubeman Plus functions as a preamp, making it crucial to adjust the master output volume when bypassing the amp's preamp to avoid volume control issues.
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The Tubeman Plus includes a 'bias' feature that allows switching between a warmer UK metal sound and a sharper US metal sound, enhancing tonal versatility.
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User experience

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Some setups may require something plugged into the Marshall's effects loop send to activate the return circuit, or an effects bypass switch might need adjustment.
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Use cases and applications

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Directly integrating the Tubeman Plus with a rig can lead to significant tonal improvement over certain Marshall amps like the VS100H, especially when using the effects loop.
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The LED lights on the Tubeman Plus are particularly useful for gigs on dark stages, aiding visibility and pedal operation.
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Other

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When troubleshooting, testing different cables and ensuring connections are secure can help identify issues with signal flow in complex setups.
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Comparisons

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Preferred over MXR 5150 and BE-OD for capturing a vintage Marshall sound with a more modern twist when adjusting the bias knob.
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Value and pricing

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At approximately $45, it's considered a highly cost-effective option for its performance and tonal flexibility, especially among distortion pedals.
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Critic Reviews

Hot licks (MX May 95)

muzines.co.uk

The Hughes & Kettner Tubeman Plus is a guitarist's dream for both live and studio settings, offering a versatile range of sounds from crystal clear tones to gritty, overdriven distortions. Its user-friendly design ensures easy access to settings, appealing to musicians who prefer a straightforward plug-and-play experience. The optional MIDI interface expands its capabilities, although its lack of a display for stored settings could leave studio users fumbling in the dark. Despite this minor setback, the Tubeman Plus shines with its impressive sound quality, making it a valuable addition to any serious musician's gear collection. While not quite a must-have due to its MIDI limitations, its ability to transform a basic sound into a rock god's riff justifies the investment.

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