US Pentode Colour Module

$79.00 ex. VAT

  • Mix and Match HRK Colour Modules!
Promo Qty Discount
Colours Mix & Match 2 - 3 10%
Colours Mix & Match 4 - 5 15%
Colours Mix & Match 6 + 20%

Description

US Pentode | USA NOS Tube Pentode Colour Module

  • Thermionic Valve Saturation Colour Module
  • Class A Operation
  • Pentode / Triode Mode
  • Tube Compression Effect
  • Adds Shine and Sparkles
  • NOS Raytheon 6418 USA Made Tube
  • Low Power Consumption
  • Low Voltage – Safe to Use
  • On-Board Regulator and Filters
  • Compatible with DIYRE Colour Format

The US Pentode is a true Class A tube saturation Colour Module. The US Pentode is built with sub-miniature, NOS Raytheon 6418 USA Made Tube thermionic valve.

The US Pentode Colour Module can operate in Triode or the Pentode Mode. Each mode offers different sonic characteristic due to the unique harmonics content.

The Triode Mode has lower gain, produces mainly second harmonics and the sound is warmer and round.

The Pentode Mode delivers 3-4dB higher gain, overdrives a bit quicker, produces more of 3rd and 5th harmonics, enhancing details and adds the shine.

Both Operation Modes add organically occurring tube type compression.

The Module does not use any DC/DC converter and does not contain dangerous high voltage.

Tube Compression Effect

The US Pentode can work as the simple Tube Compressor.

When set to Low or Moderate Drive, the US Pentode acts like a compressor, limiting the peaks of the signal while enhancing the details.

The US Pentode can be very useful for recording vocals or any instrument.

Add a bit more drive and the recorded signal will sound crispy and alive.

The US Pentode will add the vintage Mojo to any recording.

The US Pentode Compared to the Soviet Pentode

The US Pentode Colour Module shares some similarities with the Soviet Pentode Colour Module.

Both Colour Modules have the Pentode/Triode selectable operation mode and can operate at lower, safe voltage without sacrificing the performance.

The difference is in the type of tonal results which both tube colour modules can provide.

The Soviet Pentode produces darker and bit lo-fi tone, especially in the Triode mode. If you are looking for an old-school sound for your synth or vocal, the Soviet Pentode is a perfect choice.

The US Pentode will produce more “Hi-Fi” tone, brighter, with a glass-like shine. If you wish to add some sparkles to the guitar or vocal, you should choose the US Pentode.

NOS Raytheon 6418 Miniature Valve

The US Pentode Colour Module uses the Low-Power NOS Raytheon 6418 designed for operation in Low-Voltage conditions.

The Tube is working according to the specification sheet producing a rich palette of harmonics.


Important User Note!

The US Pentode requires time to heat-up. Allow 5 minutes wait time to ensure proper operation of the Tube Colour Module.


 

Stereo Samples recorded with C2584

All samples were normalised to the equal peek value level. Any subjective difference in loudness is a result of the compression produced by the US Pentode Colour Module.

      Drums - Dry
      Drums - US Pentode - Triode Mode | Less Drive
      Drums - US Pentode - Pentode Mode | Less Drive
      Drums - US Pentode - Pentode Mode | More Drive
      Drums - US Pentode + Discrete Line Driver - Pentode Mode | Less Drive
      Stranger Synth - Dry
      Stranger Synth - US Pentode - Pentode Mode | Less Drive
      Stranger Synth - US Pentode - Triode Mode | Less Drive
      Stranger Synth - US Pentode - Pentode Mode + Discrete Line Driver | Less Drive
      Stranger Synth - US Pentode - Pentode Mode + Discrete Line Driver | More Drive
      Bass Guitar - Dry
      Bass Guitar - US Pentode - Triode | Less Drive
      Bass Guitar - US Pentode - Triode | More Drive
      Bass Guitar - US Pentode - Pentode Mode | Medium Drive
      Bass Guitar - US Pentode + Discrete Line Driver - Pentode Mode | Medium Drive
      Juno Synth - Dry
      Juno Synth - US Pentode - Pentode Mode | Less Drive
      Juno Synth - US Pentode - Triode Mode | Less Drive
      Juno Synth - US Pentode - Triode Mode | More Drive
      Juno Synth - US Pentode + Discrete Line Driver - Pentode Mode | Less Drive

Vocal Samples from the MP568C | US Pentode Video

      The Interface
      MP568C + US Pentode | Pentode Mode | Medium Drive
      MP568C + US Pentode | Pentode Mode | Medium Drive with Instrumental Track

Samples recorded with Neumann TLM102 Microphone.


The HRK US Pentode vs LTL Pentode Colour Module

Colour Module

HRK US Pentode

LTL Pentode Colour Module

Valve

NOS Raytheon 6418 NOS Raytheon 6418

Pentode Mode

Yes Yes

Triode Mode

Yes No

Discrete Components

Yes No

Integrated Circuits

No Yes

 

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