DLQ wrote: Sat Feb 04, 2023 11:40 am
Which Roland or other guitar synth unit is a good one to start out with / test the electronics? What kind of cable is needed to go from the synth unit to the amp?
Firstly, congrats! I know others here are also into 13 pin stuff. So, until they chime in:
Whichever synth unit you end up going with, you'll need a 13 pin cable from the guitar to the unit, and then a standard 1/4" mono guitar cable to run from the "guitar" output of the unit to your amp. However, your unit will likely also include an additional pair of 1/4"-outs for routing the internally-processed stereo sounds the unit can produce (intended to be routed to a mixer or amp FX loop). Whichever unit you go with, finding a copy of the manual online will likely be essential to navigating the non-intuitive calibration and signal-routing menus these devices have.
At present, guitar synth users tend to favor one of two approaches: Hexaphonic DSP (ala the Line 6 Variax and emulations of Roland's old analog pitch-to-voltage guitar synths from the 80s) and pitch-to-MIDI conversion. You'll eventually find you prefer one path more than the other; which will determine your subsequent hardware investments.
For someone just getting into guitar synths, any secondhand Roland GR-20 or 30 will likely be the cheapest to invest in that covers all bases, while having the most features in common with current flagship units: Guitar modeling with alternate tunings, internal sample triggering of a range of "synth-y" sounds, and MIDI-outs that can be routed to the MIDI-in of another synth.
For players who prefer hex DSP, the discontinued Roland VG-99 is the pinnacle which some would argue has not yet been equaled. Modern alternatives from Roland include the SY-1000 and somewhat recent GR-55 (which I happen to use). The Antares ATG-1 was another specialized unit that's now next-to-impossible to find. It offered guitar modeling, alternate tunings, and perfect intonation via auto-tune.
For those who prefer pitch-to-MIDI, they'll find that the Roland stuff just doesn't do it as well as it could. The discontinued Axon AX-100 was considered superior to Roland in MIDI conversion tracking, with the modern Fishman TriplePlay pickup currently considered the best pitch-to-MIDI converter setup available. Other hex pickup brands on the market arguably better-suited for pitch-to-MIDI include LightWave and Cycfi.
Note that Roland guitar synths tend to have a setup menu in which the source pickup is specified (e.g., Roland GK-3, RMC piezo, Fishman piezo, LR Baggs piezo, Graphtech Piezo, etc.). Piezo hex setups (such as what's in your DF824) have inherent crosstalk between saddle elements which prevents "perfect" tracking, and various owners have setup or modification tricks to mitigate this (Richard McClish of RMC, for example, sells a replacement board for the Roland GR-55 which filters out some of the common crosstalk frequencies one is liable to encounter with piezo setups).
Feel free to pick my brain here or via PM until you're sick of me. I also recommend diving into
https://www.vguitarforums.com/smf/; as Elantric and the rest of the community are the foremost experts on guitar synth tech.