here's the catalog http://www.guano-grafik.dk/pdf/ntpkatalog.pdf
for schematics maybe Jacob - Gyraf.dk can help
NTP stuff is hard to find 
__________________  Quote: "OP seems to think Mr C isn't a DJ, rendering his post total behringer." frawnchy
“it rubs the deoxit on the skin" fooddude
The notion that low quality playback or less sensitive hearing will cover up the lack of audio quality is a common rationalization that is dead wrong. Bob Olhsson
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