The E370 comes equipped with four DSP based oscillators, their digital to analog converters work with a resolution of 16 Bit and 96 kHz. Internally, the module uses 32 Bit Floating Point algorithms. High quality components guarantee excellent performance. For instance, the temperature drift is 0,005%, meaning it is practically non-existent. Should the circuit start to sound out of tune, the automatic calibration function will get it back on track. The E370 can be played over a range of ten octaves with variations of three cent at most. Synthesis Technology took a lot of effort to make handling the module as intuitive as possible. Its menu structures are very shallow. Navigating through pages and editing parameters is done via a rotary encoder with click function and a color TFT display (240 x 320 pixels).
The E370’s oscillators are tunable with the help of coarse and fine potentiometers. In detail, values from 22 minutes per cycle to more than 18 kHz can be dialed in. For playing the VCOs, there are 1V/octave inputs. Furthermore, each oscillator offers FM and Sync inputs. Sound manipulations can be done via two potentiometers named Mod A and Mod B. They can be linked to various parameters of each synthesis algorithm. Same goes for the two CV inputs plus attenuators per VCO. Audio material is emitted by four outputs.
The E370 features all synthesis algorithms of the modules E350 Morphing Terrarium and E340 Cloud Generator plus some functions known from the E330 Multimode VCO. Compared to its little siblings, the Quad Morphing circuit works with higher resolution. The result: Crystal clear, low noise sound. Furthermore, there are additions like true zero FM.
The algorithms of the E350 Morphing Terrarium are specialized in one-dimensional and two-dimensional wavetable synthesis with phase and glitch options. Three banks with 64 waveforms each are available, arranged in a matrix (8 x 8).
The E340 Cloud Generator creates sounds based on up to eight sine or saw tooth waves. With the E370, it is also possible to use wavetables.
Last but not least, there is a FM mode with two operators, which was derived from the E330 Multimode VCO. Again, besides normal waveforms, it is also possible to employ wavetables.
Algorithms are selectable per oscillator. The audio generators can be used separately, as a polyphonic setup or in combination. More detailed, there are two voice and four voice unison modes as well as a chord function. The latter allows users to choose between several scales, intervals and progressions.
Besides the VCO parameters, it is also possible to reach lots of additional parameters via the display and rotary encoder. For instance, there is an oscilloscope, a tuner and a mixer. The latter enables users to sum up several oscillators inside the module. Configurations can be saved on a MicroSD card. Furthermore, users are able to create wavetables on a computer (16 Bit WAV format / 256 samples in length) and feed it to the E370 via the storage medium. Each VCO can load 64 waveforms at once. Even though creating WAV files is pretty easy, Synthesis Technology designed an editor for creating and managing wavetables. The software is compatible with Windows, OSX and Linux.
Per oscillator: 1V/octave-, FM-, Sync- and two Mod inputs
3U Eurorack module, 54 HP wide, 48mm deep
Power consumption: 155 mA at +12 V and 40 mA at -12 V