A Preemptive Laserdisc Purchase | Marantz DP870 | A Goodwill Steal
ฝัง
- เผยแพร่เมื่อ 13 ก.ย. 2024
- This is a video I talk about a preemptive buy I made for my eventual purchase of an AC-3 Laserdisc player; a Marantz DP870 demodulator. I found this item on Shoppgoodwill for a bargain. Thanks for watching.
---------------------------------------------------------------------------------
Home Theater Equipment:
Projector: Knoll Systems LED 1081
Screen: DIY 110" 1.0 Gain Screen
Front L&R Speakers: DCM Timeframe 600
Center Speaker: Infinity Beta C360
Rear Speakers: JBL Pro 8340a
Subs: (4) Polk Audio PSW10
Player: Panasonic UB420
Receiver: Rotel RSX 1056
---------------------------------------------------------------------------------
I hope you enjoy the video. Please consider Liking & Subscribing to my channel. Any support you can give will help me grow my TH-cam presence and is truly appreciated.
Thanks.
![[[OFFICIAL MV]] เอิ้นขวัญให้อ้าย- อ๊ะอาย สกุณาพร | ค่ายเพลงเป็นหนึ่ง](http://i.ytimg.com/vi/83x6L3X3qh0/mqdefault.jpg)
Good find! You're in for quite a treat when you get it all working! I've been collecting Laserdiscs since the 90's, but didn't have AC-3 capability until recently. I had 70 AC-3 titles in my collection but wasn't able to enjoy them until now!
Some of those 90's theatrical mixes are absolutely magical! It's like the engineers at Dolby Laboratories were in some vicious competition with the propellerheads at DTS to see who could blow the roofs off the cinemas. Some movies you would never expect to have great mixes, totally blew me away. Outbreak & Congo had surprisingly notable mixes... but it was Vegas Vacation (seriously) that really impressed me the most. SUCH presence. Feels like you're really there - walking the strip or strolling the floors of the casinos and nightclubs.
Interesting that at 3:27 into the video I noticed an image of my custom modified Pioneer CLD-M90. I am honored you found that pic on-line and put it in your video 😉.
But moving on, I just recently acquired a DP-870 and it’s going to be the focus of a new project of mine to create a workable digital output on it to make it into a true AC3 Demodulator and digital switch box so I can hook it up to a more modern AV Receiver to pass along AC3, DTS, and PCM.
The six channel analog out was never a great option on this unit in particular since it can’t even pass Dolby Pro-Logic as well as DTS. In addition, it’s strictly going to be 5.1. Thus, if you wanted to listen to an AC3 LD in unconverted 6.1 or 7.1 on today’s AV Receivers / Processors, you are out of luck unless a digital out can be added.
Regardless, that is a great price you got on the DP-870. I paid a tad more for mine. If my mod works, it will probably increase its value to around $200 as that’s how much most “standalone” Demodulators are going for these days (total rip off) 🙂.
10:18 think those really expensive models convert Ac3 Digital and standard coax spdif Digital out.
As your model is a Digital to Analogue converter that will make it cheaper as not all newer amp have a 5.1 (6-Channel) analogue input. So your Rotel is well stacked to accommodate your needs
Excellent points about the value of this as a standalone DAC. My first thought watching: this would be a huge help if you wanted to digitize something that’s only on Laserdisc, which there’s still a surprising amount of movies & especially concerts and music video compilations that are only on VHS & Laserdisc, meaning the best picture & audio you could get would come from a Laserdisc.
So if I understand correctly how Laserdisc digital audio works, having this AC-3 digital-to-analog converter should give you the best possible audio that you could then import for making a great, highest-res QuickTime.
What do you think?
@@kirkcruz3764 sounds like a plan.
Although you wouldn't need much of a PCM sample rate to record. If memory serves, Dolby Audio Codac 3 was encoded at around 384 kilobytes of data, just slightly higher than Spotify at 320. But it's the high quality mastering process for the dynamic range. So not high res? But maybe 24 bit 48khz would be massively oversampling but would catch 100db + of audio.
Not sure how you'd capture the 6 analogue feeds but if you wanted to record it you have to stitch the tracks together or just ignore the Ac-3 and feed off the 16 Bit - 44.1 Digital stereo tracks at CD sample rates for concerts and shows.
That's why Dolby high jacked one of the left or right analogue tracks and the remainder went to audio commentaries quite ofter
@@jefffan171 thanks so much for the tips & info! And yeah, it would/could be a lot of work to import all the channels, but for some of the titles I have in mind (most of which are stereo digital audio), due to rights issues they apparently will NEVER get released digitally or on blu-ray. So to me it would be archiving while it’s still possible.
Thanks again!
@@kirkcruz3764I would say capture the AC3 track through a standalone AC3 RF Demodulator or AC3- RF Processor that has a Digital Output to keep the signal in the digital domain as you will get a bit for bit perfect copy of the soundtrack.
Once you decode that signal from digital to analog regardless how good the D/A Converter is, you have still changed the sound. Not to mention that you don’t know for certain if what you are hearing from the analog processed sound has been altered by the usual time delay and bass management of the unit.
SCORE!!! Excellent find. And now of course you’ve gotten me on the hunt to finally get a proper digital output for my Laserdisc player 😂
FYI, Chicago AV hobbyist here, been really enjoying your channel in the week since TH-cam recommended it!
Lucky guy, mine didn't last 10 years. Hope yours is fine. Capacitors issues is what happened to mine
Good to know. I'll keep an eye on the capacitors. I'm still waiting for a good AC3 LD player to pop up at a reasonable price.
@@2ndHandHomeTheater I'm sure yours is fine. I ended up giving up finding a decoder and found a Denon avr-3200 receiver that works fine. However either have to set up that in a different space or make a speaker switching system to use in the same room where my TrueHD receiver system is. Btw..great video !!
@@TheTwine007 Appreciate it, thanks.
If u can find the pioneer DVL-90 it also plays dvd disc. It doesn’t need a demodulator
That is for DVD only.
The laser RF needs a demodulator as the 5.1 on laserdisc was encoded as RF to fit on one of the discs analogue audio tracks.
With DVD it was encoded digitally so no need to have modulated the embedded audio.
So for any LD/DVD combination deck it'll have a coax wire for each formats, and the same is for the picture. A combi deck will not output video over component video, that too is just DVD, LD is composite video so only outputs via composite or via its own outdated 3d comb filter over SVHS only the Muse Players can give a modern comb filter a run for their money these days
I find that older dvd's or laser disks were not very good in surround sound ... i always found that back in the dvd days i would play a movie and think to myself ... um ok where is the surround sound ... i always found older disks were not encoded good with 5.1 because i was always upset and thinking ok where is the surround effects?
Almost all DVD players I recall always had their digital outputs defaulted to PCM so that will only push through a matrix Dolby Pro-Logic mix that never sounds as enveloping. I had to always switch my players to Bitstream to allow DD 5.1 to process through and most of the surround tracks I heard were very enveloping for the most part.
For LD, most of the Dolby Digital tracks are even more immersive (as this video pointed out) as we really did get a lot of theatrical mixes ported over. I miss those days.