The Denon AVD-2000 has got 2 digital optical inputs, 2 digital coaxial inputs, and 1 AC3-RF input, and it can select any one of these 5 different input channels - manually by either pressing a button on the front or on the remote control. The digital content of the selected channel is directly sent to the one optical spdif (Toslink) output and in parallel is also processed by the built-in Dolby Digital 5.1 decoder. The resulting analog 5.1 channel signal from the decoder (or from the analog 5.1 channel input connectors) is then processed by the equalizer and timeshifter and output only on the analog 5.1 channel preamp output connectors (which may get connected to power amps to drive the speakers). So the digital output does simple thru-streaming of the digital input, not modifying any of its content.

So one may use the Denon AVD-2000 as Dolby Digital 5.1 Decoder with analog 5.1 channel preamp output - or simply as an AV-Switch for up to 5 different digital incoming signals, or you may use it simply as "AC3-RF Demodulator", or as a combination of that all. I have connected the digital optical output and also the AC3 RF output of my laserdisc player to the AVD-2000, and the digital optical output of the AVD-2000 to my modern AV-Switch (which is able to decode Dolby Digital as well as DTS etc.). The analog output of my laserdisc Player however is separately connected to analog input connectors of my modern AV-Switch. Like this I am able to listen to all Laserdisc soundtracks in any possible configuration: analog mono/stereo/bilingual/Dolby Surround, digital mono/stereo/bilingual/Dolby Surround, Dolby Digital, DDEX or DTS ...

You might want to check this thread: Denon AVD-2000 and other DAC Processors



Hope that helps.

This works like a charm. owned one of those some time ago. Same like the EP90es
Ac-3rf in.... optical demodulated out

Thanks Kris!

In't vlaams.... jaja dat werkt prima

Ditto... you need to mod your player for AC3 or get a newer player (post 1995) that had the AC3-RF output. I assume this is your ProScan, PSLD41? If so, here is the work I did on my PSLD43 to add AC3-RF....

Scratch built AC3-RF board installed in my ProScan, PSLD43


As to the seller stating that it worked, maybe they had an AC3 ready LD player or just using it for Pro-Logic on the optical output.

Why am I so dense? I always thought the separate output was essentially a second analog right. I should have done more research into it, especially since I have numerous AC-3 discs.

I'll give it a try. I can only see the 3rd image of your post, and I'd like to see how you did it. I've always wanted to solder something new on a board

You're not the first and definitely not the last person to assume that the right audio out (and switched to analog) might be a way to extract the AC3 signal. But now you know.




Hmmm... I know that my pics don't always load for some odd reason. You might want to try a different browser to view the post. I can provide you the exact points on the 2090 later so you know where to go when you are ready to build and install the AC3 board.

I was kind of shocked that it instantly gave my AVR DD 5.1 output without actually changing LD audio to the Analog Right Channel option