In this topic the bad sound from a Panasonic FS-A1ST was discussed... At first I thought it was okay enough... Then I got pointed at the differences which wanted me to try my Panasonic FM-PAC on my turbo R... I already knew this thing was going to be silent... I was told that this is the case with Panasonic FM-PACs but not with clones... I got a tip from that same topic to try OPLLOFF.COM which switches off the internal FM which should make my FM-PAC come to life... And it did... In Moonblaster, but not with Moonblaster's basic driver... Then hearing that OPLLOFF.COM is more of a so called "dirty hack", I knew I had just one option left: get a clone. The graphic below proves the validity of my wish:

I have to tell you that my Panasonic FM-PAC does have a custom RCA output so it's not the cartridge amplified with the internal MSX-Music, it's only the cartridge.
On facebook I had a little conversation with Nyyrikki who pointed me at a theoretical danger:
Yes, that it how the safety switch works... FM-PAC does not get enabled if it finds any other device in same I/O ports, but it works only if BIOS is used. Many software does not consider this kind of unlikely conflict and they enable FM-chip without any checks.
I think this was made so that the PAC-part could be used in computers that already have MSX-MUSIC without hardware conflicts.
I don't say that this definately causes errors, over heating or anything like that, but I'm warning that that this MIGHT not be a good idea. You may want to ask second opinion about the potential risks from someone more hardware oriented expert.
The worst case scenario that I don't know enough about, goes something like: We send data to MSX-MUSIC and both devices get the data. How ever MSX tR adds some extra waitstate be caused cartridge slot... or oscilators are not 100% in sync. Then we input status byte. One chip returns 0 (=0v) and because of time difference other returns 1 (=5v). This causes 5V to be connected to ground= short circuit. -Is this likely? No -Is this possible? I don't know, I suggest asking. I just wonder why there is such a complex prevention system in place if that is not mandatory.
So my question to a hardware guru (please no guesses): *Is* it potentially dangerous to the hardware to have an MSX-Music cartridge connected to a computer with built in MSX-Music?
