The JTM 67 MKIII has the right gain for a typical rock guitar player. Even with the EL34 output stage, the sound remains always bold, round and dynamic.
The JTM 67 MKIII borrows it features and design from the Marshall JTM 50 from 1967 which started the rock era of Marshall amps. It was the first Marshall with EL34 power tubes, but with a rectifier tube for smacky response. The Gladius JTM 67 MKIII comes with a classic ECC83 preamp and as is standard on all Gladius amps, the unique Variac power reduction which allows the user to scale smoothly from 0.1 watts up to 30 watts (continuously variable). Along with being hand-wired, only absolute state of the art components are used along with the best possible tubes. Also, the rhythm-lead switch allows you to play the amp real tight, without getting the usual sludgy sound when playing a Humbucker-guitar (an often criticized aspect of vintage amps). The JTM 67 MKIII has enough gain for classic rock without becoming marshy with too much gain. Despite the EL34 power tubes it produces a fat sound and allows your guitar's sound to come through genuinely unaltered with the world famous charm of a Plexi.
An indispensable extra feature is the channel-patch that internally combines both channels (bright and normal) without having to use a conventional external patch cable. Plugging into either the Hi or Lo inputs patches your signal to both the bright and normal channels which can then be controlled via their respective volume knobs.
With the rhythm-lead function (clearly visible through different colors on the pilot light) and the two preamps you get 4 completely different amps in one unit which can be even be switched!
With this setting you will get a clean and stable tone, without the vintage character. It has an explosively quick response, without sounding too harsh. Fat and round, similar to the vintage version, but mercilessly defined like with Gary Moore or Ritchie Blackmore.
As the name already suggests, in this setting the complete vintage sound up to 1967 is covered. It is extremely fat, round and dirty as well as 'smacky' in response; the sound used by AC/DC, Jimmy Page, Bernie Marshden and many others.
The Gladius JTM models are classic tube amplifiers featuring different design details like output transformers and power tubes. The amplifiers are hand wired and have an aluminium chassis with aluminium end-blocks.
- Type: class AB
- Output power: < 0.1 W - 30 W (controlled by Variac)
- Power amp: 2 x EL34
- Preamp: 3 x ECC83
- Rectifier: GZ34
- Output transformer: 784-128
- Inputs: Hi & Lo (each with internal gain patch to both channels)
- Input controls: Presence, Bass, Middle, Treble, Volume
- Speaker connectors: 2
- Speaker impedance: 4/8/16 ohms switchable
- Output power control: continuously variable
- Color: black
- Mains voltage: 117 V~ / 230 V~ 45-60 Hz
- Power consumption: 175 VA max.
- Weight: 15 kg
- Dimensions: 21" x 8" x 9" (53cm x 21cm x 23cm)
- Special features: integrated channel bridge, Gladius output power control, rhythm & lead circuit with foot switch connector on the back panel
- Option: connector for effect devices on the back panel