The Jim '81 amp offers very unique specifications, combining rich features, low weight, high reliability and awesome sounding.
Two legendary amps inside the Jim '81
Two independant channels inspired by Fender* Blackface and Marshall JCM800* amps, adjustable output power up to 100W, an effect loop, a DI output with Cabinet Simulator, lightweight. These make the Jim '81 a totally unique guitar amplifier.

  • 1U rackmount enclosure, only 2kg / 4.4lbs
  • 2 channels
  • Adjustable output power from 0 up to 100W
  • Effects loop
  • DI output with speaker cabinet simulator
  • Heptode proprietary analog technology
  • High end Class D audio amplifier


  • Leo: simulates a Fender* Blackface amp
  • Jim: simulates a Marshall JCM800 2203* amp

Controls (Leo channel)

  • Volume
  • Bass, Middle, Treble
  • Power level (0 to max power)

Controls (Jim Channel)

  • Preamp Volume
  • Master Volume
  • Bass, Middle, Treble
  • Presence
  • Power level (0 to max power)

Other controls

  • Leo/Jim channel switch
  • Low/Full (15W/100W) max output power
  • Cabsim on/off switch
  • Ground lift switch for DI XLR output


  • 2 Guitar inputs (front/rear panels)
  • 2 Speaker outputs (4Ω minimum)
  • 1 Footswitch input (channel selection)
  • 1 Send output / 1 Return input (effects loop, +4dBU)
  • 1 Line Out ouput (Jack)
  • 1 DI ouput (XLR)
  • Mains input : 120V or 230V (factory setting, please specify), 50/60Hz

Output Power

  • Max output power: 100W @ 4Ω; 50W @ 8Ω; 25W @ 16Ω

Dimension and weight

  • 48 x 4.4 x 22 cm, 2.0 kg  - 18.9" x 1.6" x 8.7", 4.4 lbs

Heptode amps carry a 3 years limited warranty.

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
  • Jim '81 Rackmount 100W Guitar Amp Head
Made In
  • France

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ORSAY, France
Joined Reverb:2014

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