The JT-2 from Behringer is a single voice of probably the most sought-after analogue synthesizer of all time, the Jupiter-8 from Roland in desktop format. All the sound-relevant controls of the original can also be found on this compact synthesiser. Presets are not implemented, but there is an arpeggiator with 1-4 octaves and the playback directions Up, Down, Up & Down and Random. The polyphony can be switched between monophonic and 2-part paraphonic. Thanks to Behringer's PolyChain option, several JT-2 units can be linked together via MIDI to configure a five-voice Jupiter-8 with individual settings for each voice, for example. In terms of sound, fat basses with Roland sound, epic leads, cutting sync sounds and metallic tones are guaranteed! By changing the form factor, Behringer was able to accommodate the JT-2 in the proven desktop housing, which means that it can be mounted in a 19" rack with optional rack ears and can even be installed as an 80HP module in the Eurorack modular system.

The JT-2 comes amazingly close to the 30kg original from 1981. Two oscillators with typical Roland sound form the basic structure of all Jupiter-8 sounds. Oscillator 1 can be switched in four foot positions and masters the waveforms triangle, sawtooth, pulse and square. The amount of cross-modulation can also be adjusted. The frequency of the second oscillator, which even extends into the LFO range, can be freely adjusted, it can also be hardsynced and delivers sine, sawtooth, pulse or noise. The pitch can be modulated for one or both oscillators via LFO and/or envelope, the latter being ideal for classic sync sounds. Pulse width can be set manually or modulated via LFO or envelope - typical for old Roland synthesisers. After the mixer, both oscillators finally enter the distinctive 12/24dB low-pass filter with an upstream, resonance-free high-pass filter. The filter packs a punch, lets a lot of low end through and lives up to its reputation. An envelope, LFO and keytracking are permanently assigned to modulate the filter. The end of the signal path is marked by the VCA, which is modulated by envelope 2 and can be modulated by the LFO to realise tremolo effects.
The main part of the modulation is done by two ADSR envelopes, which are permanently assigned to the filter and VCA. Keyfollow can be activated separately for each envelope. This parameter enables the modulation of decay and release by means of pitch control; in short, high note positions lengthen the decay times and low ones shorten them. The LFO is identical to the original: speed, transient delay and the four waveforms sine, sawtooth, square and random are available here.

The Behringer JT-2 test reveals a synthesiser that draws its strength from reduction. It does not attempt to be a complete Jupiter-8. Instead, it concentrates on a single analogue voice with two VCOs, a filter with a strong character, sensible modulation, an arpeggiator and modern connectivity.I particularly like the fact that the JT-2 combines classic sound aesthetics with modern studio requirements. You get Jupiter-inspired basses, leads, sync sounds and metallic cross-mod sounds without having to own a huge vintage instrument. At the same time, the synth remains direct, tactile and uncompromisingly analogue.
Behringer JT-2