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Metal rackmount brackets for amplifier head, 19 inch 4 HU, silver finish

Hughes & Kettner

Hughes & Kettner RM-40 Rackmount Kit 19" 4 HU

SKU CH-C5BS-FMNR3

Rackmount kit converts compatible tube amplifier heads into a 19 inch 4 HU rack unit weighing 500g

  • Converts compatible heads to 19" rack format
  • Fits 4 HU rack spaces for standard installation
  • Secures TubeMeister 36 and GrandMeister 36 models
  • Accommodates TubeMeister Deluxe 40 and GrandMeister Deluxe 40
  • Lightweight 500g steel construction adds minimal mass

Rackmount kit for TubeMeister and GrandMeister

The Hughes & Kettner RM-40 converts compatible amplifier heads into a 19 inch 4 HU rack unit. It fits the TubeMeister 36, GrandMeister 36, TubeMeister Deluxe 40 and GrandMeister Deluxe 40 models. Installation uses the existing side mounting points on the amplifier chassis.

Steel brackets with mandatory cooling requirement

The kit weighs 500g and attaches directly to the amp sides for a secure fit. The manufacturer stresses that rack mounting tube amplifiers requires active cooling; a rack fan must be installed above the unit. Commercially available 19 inch cooling fans such as the PROCOOL HK640B are cited as suitable options.

Upgrade from standalone head to rack integration

This kit replaces a floor or shelf placement with a standard 19 inch rack mount, saving space in touring rigs or studio installations. The jump is worth it when you already use a rack case and can provide the forced airflow that tube operation demands. Without dedicated rack fans the upgrade introduces thermal risk.

How it compares

Measured against everything we stock in Studio & Stage Accessories, at today’s prices. Recalculated every night.

Price $51.99
Pricier than about 77% of the 351 comparable items (median $23.99).

Specifications

No published specifications for this item yet.

Questions about this item

How many rack units does the RM-40 kit occupy in a 19-inch rack?

The kit converts the amplifier head into a 4 HU rack unit that fits standard 19-inch rack rails.

Which amplifiers are compatible with this rackmount kit?

It is designed for TubeMeister 36, GrandMeister 36, TubeMeister Deluxe 40 and GrandMeister Deluxe 40 heads.

What cooling provision must be made when installing the amp in a rack?

A rack fan must be installed above the amplifier; the manufacturer suggests a 19-inch cooling fan such as the PROCOOL HK640B.

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