Magnavox CDB-460 Measurements and Review (CD Player)

[tpd]

Here's a link to the June 1987 issue of Audio in which Walt Jung discusses the CDB-650 and offers some starter modifications: https://www.worldradiohistory.com/Archive-All-Audio/Archive-Audio/80s/Audio-1987-06.pdf

I would love to see both parts of the POOGE-4 articles if anyone has the originals to scan. Those issues (The Audio Amateur 1988 issues 1 and 2) have been difficult to track down.

 

[tpd]

Re-measured using the suggested technique:

 

[AnalogSteph]

That's more like it.

 

[tpd]

Revised measurements here. I'll add a link in the first post to these new measurements for clarity.

 

[tpd]

And here are measurements for my second CDB-460. This was also re-capped and cleaned up, and is identical except: I removed the original filter op amps, soldered in sockets, and have a pair of Burr Brown OPA2132 op amps in there now. I don't think it makes a measurable or audible difference.

 

[tpd]

PS: RCA output for the second CDB-460 is...

Right: 2.002Vrms
Left: 2.041Vrms