i had an internal creative soundcard some 5 years back. sound was pretty perfect with dt990 pro and sz2000. my current creative usb soundcard has more noise :(
You'd have to put it all the way around it, including near the connector. Obviously you can't put it inside the connector, but that's another avenue for noise to get in. Outisde the box of noise with it's own box of insulation is a much calmer place.
Got a second hand ISA interface SoundBlaster 64 at a computer fair in San Diego when I was visiting there for the best summer of my life in 1998. If I remember correctly it was $4.
At the Scottish Rite Center in Mission Valley? There’s a good chance I was also there that year. My two most prized possessions I acquired there were a 3dfx Voodoo Rush, and a modded PlayStation 1 in a clear plastic housing.
Not there but (and I had to google maps this) it was at a place that I think is called "Pechanga Arena" now on the aptly named "Sports Arena Blvd" but I think the arena was called something else back then. About 2 miles from Ocean / Mission beaches and close to my apartment at the time.
Ah yeah, Pechanga Arena was just “The Sports Arena” in the era before sponsoring venues was a thing. They still to a swap meet in the parking lot of that place every weekend. Random other info about that place, they shot a scene from Almost Famous at one of the freight entrances there.
Great card, got one in my 440BX retro rig! Plus an AWE64 Gold and a PnP SB16 with a real OPL3 FM chip. That's just a bit of what's kicking around here...