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Crushing IRONHEART tube tone in a 2U rack amp

The IRT-STUDIO is not just a tube pre-amp – it is a full 3 channel with pre-boost, all-tube IRONHEART amp in a 2u rack. Loaded with a pair of EL84 output valves the IRT-STUDIO generates either 15 watts or less than 1-watt RMS of pure valve tone. The IRT-Studio features the same great IRONHEART tube tones as the bigger heads in a low-power, lightweight, portable EL84 all-tube package with some neat features added. The IRT-STUDIO features a USB Audio I/O and a RE-AMP send jack. Plug it straight into your PC/MAC or iPad and get pure tube tone directly into your digital world. The IRT-STUDIO is the ultimate in portable amps and is supplied with a dedicated 4-way footswitch. Use it in the studio, at rehearsal or on the road!

Internal Dummy Load

In order to let you operate your tube amplifier silently we have included an internal dummy load. This means that you can use your amplifier without the need to connect an external load (speaker) to it, without fear of damaging your amplifier.


The T-USB interface supplies both a dry signal and the processed signal – split left and right to your DAW – directly into either your PC/MAC or iPad*.


A re-amp socket works in conjunction with the T-USB feature on an amp and allows the original dry (left channel) signal to be re-routed back through the pre-amp and be sonically altered.

Selectable Power 15 watts or Less than 1 watt

Allows you to drive the output stage of the amplifier harder at reduced output levels should you need to use the unit in situations where full volume is not appropriate.


  • PC/MAC/iPad/Android compatible
  • Speaker emulated record out
  • Phones
  • Extension speaker socket: 1 x 16 Ohm & 1 x 8 Ohm
  • Rack wings supplied
  • GB-2U carry case optional extra
  • The Ultimate Fly rig
  • Plugs straight into your computer
  • Item dimensions: 88mm x 428mm x 285mm (HWD)
  • Carton dimensions: 160mm x 603mm x 350mm (HWD)
  • Item weight: 5.50kg

- Power rating: 15W
- Preamp: 3 x 12AX7/ECC83 tubes
- Amp: 2 x EL84 tubes
- Channels: 3 (clean, rhythm and lead, with switchable pre boost)
- Controls: Clean volume, rythm gain, pre-boost, lead gain, 2 x bass, middle and treble with pull-push EQ shift on each, 2 x master volume, dynamics, tone, reverb
- Inputs: 2 x 1/4" jack (guitar 15W + <1W), 1/8" aux in, 1/4" FX return
- Outputs: XLR D.I. with level, 1/4" phones, 1/4" FX send, 1/4" jack speaker out
- Reverb: Laney designed digital reverb
- Speaker emulated record out: Delivering valve tone recorded as well as live
- USB: 44.1kHz Standard Slave CODEC (PC/MAC/iPad compatible)
- Dimensions (H x W x D): 90 mm x 430 mm x 290 mm
- Net weight: 5.5 kg

- Colour: Black