The SD 50 is a hardware synth. Latency is only a problem with software synths because the computer's CPU is doing the digital midi to audio conversion. With an external hardware synth, the synth itself is doing the heavy lifting. The midi is going out of the computer, into the synth then the audio is going back in. The synth is doing the audio conversion therefore no latency or to be precise very minimal latency like 3ms or something. That's the same "latency" a pianist hears when their fingers hit the keys and they hear something.

Everything is a tradeoff. With software, it's all there on your screen right in front of you plus you can do an audio "render". That means a 5 minute songs gets rendered to audio in maybe 15-20 seconds depending on your computer. With a hardware synth when you're ready to convert your midi song to audio you have to record the output from your synth in real time so a 5 minute song takes 5 minutes just like the old days.

Bob

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