The sound of this synthesizer of Roland Boutique series is emulated applying the ACB technology - Analog Circuit Behavior, i.e. it differs significantly from the original device (TB-303), in contrast to the modern copies of old Roland drum machines presented on the market.
However, the introduction of new technologies appeared to be beneficial: 4-channel audio output via USB appeared (in addition to the classic analog mini-jack, through which the compressed audio is transmitted), and, thanks to the compatibility of all Boutique devices, connection to K-25 keyboard was also available. Of course, there are MIDI inputs and outputs and MIDI via USB support.
TR-03, Bass Line is a bass synthesizer with the ability to fine-tune an instrument, the sound of which is generated by a sawtooth or square wave using resonance, cutoff frequency, envelope modulation, delay and decay effects. There is also an overdrive function. You can send a signal to external devices (CV/Gate Out) and receive a control signal (Trigger IN) which makes it possible to use TR-09 and TB-03 together, as well as to integrate other synthesizers with it.
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