A little bit of synth history (well my sawtooth take it on it anyway

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Started delving into this topic when finding myself surprised that retailers can still price the 2004 released Boss SYB-5 for up to $180 new, when the vastly more capable new SY-1 model is about to hit the shelves at $199. It's predecessor, the SYB-3, was released in 1996.
I'm a little tempted to pick up a SYB-5 (used of course!) just to compare how the tech has improved in the intervening 11 years. Yup that's not me being bad at sums - but based on the assumption that the SY-1 is a repackaged and cut down version of the polyphonic SY-300 which came out in Autumn 2015 as a belated response to the much admired 2011 Roland GR 55.
Moving into more recent times, the Panda Future Impact came out in hard on the heels of the Boss SY-300 in the summer of 2016, as a successor to 9 preset Akai Deep Impact. The Akai was released and pulled relatively quickly in the mid 1990s but got itself a bit of a cult following resulting in stratospheric prices which are belatedly coming back down to earth. The FI with its synthesizer blocks of oscillators, filters and envelope generators and 99 presets pretty much became top dog until...last month and the July 2019 release of the Source Audio C4.
Along the way we have had the initially popular Markbass SuperSynth which was released in 2009 and with minor cosmetic changes made in a v2 released in 2015, but was somewhat done for by the arrival of the FI; the quirky 2017 Bananana Matryoshka which we loved but found hard to get many gigable sounds from and two 2018 releases: the Pigtronix Mothership 2 which provided us a small footprint attractive form factor analog synth but never really captured the hearts of us bassists; and the 2018 Meris Enzo which seemed to hold a fair bit of promise but requires midi to get the best out but and seems already at risk of being eclipsed by the C4.
In hindsight, 2015 with the arrival of the Boss SY-300 heralded a new era of development and competition between pedal makers in the synth arena and without doubt now is a great time to be getting into bass synths!