JTEX Rock Mania - pushing the delay time to the max (0.6 sec) by Jerry Catanescu published on 2023-12-13T03:31:57Z Rock Mania uses a PT2399 delay chip, which is specified for a maximum delay time of 0.3sec. The chip can be pushed for longer delays, perhaps up to 0.6 or 0.7sec, but at the cost of increasingly grainier repeats. They can be made subjectively cleaner by limiting their bandwidth using a low pass filter. At some point the repeats can become excessively dark, though. Where to draw the line? What is acceptable to you? It's a tradeoff, like so many things in engineering...