CD-4 digital files? test "disc"?

[n8nagel]

I was thinking; I really need to concentrate on getting my Sansui QRX-7001 up to 100% but I only have one CD-4 stylus (a JICO aftermarket one for an AT-15SA cartridge) and also only a handful of CD-4 discs - I want to say one Shostakovich and two test discs. The issue that I'm having is that while my Marantz CD-400 seemed to work right out of the box, when I went through the basic CD-4 setup with the Sansui, I never really got a pleasing quad sound no matter what I did with the little knobs.

Rather than playing these over and over while testing, wouldn't it be great if I could play back a digital file through a DAC and send it into my receiver that way while I'm testing, to save the wear and tear on my hardware? It would have to be higher resolution than 44.1/16 to reproduce the CD-4 carrier, I realize that, but I have several DACs that should be suitable.

Anyone know if anything like what I'm looking for exists?

Thanks!

 

[gene_stl]

Any 88.2 or 96 kHz sampling rate DAC should be able to do the job. Do you have the test files already??
Probably somebody here would have some suitable files.

 

[jupp369]

I was thinking; I really need to concentrate on getting my Sansui QRX-7001 up to 100% but I only have one CD-4 stylus (a JICO aftermarket one for an AT-15SA cartridge) and also only a handful of CD-4 discs - I want to say one Shostakovich and two test discs. The issue that I'm having is that while my Marantz CD-400 seemed to work right out of the box, when I went through the basic CD-4 setup with the Sansui, I never really got a pleasing quad sound no matter what I did with the little knobs.

Rather than playing these over and over while testing, wouldn't it be great if I could play back a digital file through a DAC and send it into my receiver that way while I'm testing, to save the wear and tear on my hardware? It would have to be higher resolution than 44.1/16 to reproduce the CD-4 carrier, I realize that, but I have several DACs that should be suitable.

Anyone know if anything like what I'm looking for exists?

Thanks!

I recorded all my Quadradisc (400 titles) without problems and I play them from Data-DVD oder media-player without any loss.
Of course there are many traps:
24/192kHz WAV is needed or you get triangles instead a fine sine. Audacity is a useful tool with it's repair function.
Don't connect any HDMI, the handshake will limit your output to 20kHz! Use RGB.
And you need a new wire (need 2 out and 2 In = 4) soldered just behind the first amplifier after phono input, the RIAA equalizer. I did with 5 / 3 amplifiers from JVC and Panasonic without problem.
With my old XP compi that was no problem, but win7 and higher has limiters for In and Out. So I use now an external analog - USB made for musicians (Focusrite Scarlett 2i2 = 150$) and I'm very satisfied, no hum, direct USB = wav.
Sorry, can't send you a sample, because yahoo limits all attachments to 25MB.
If you want to do it, ask more info.