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ADA Mach 4......WOW!!!! - Page 67

post #1981 of 2083
Quote:
Originally Posted by edorr View Post

The only reason I think the ADA DSP probably runs at 96/24 is because I am not aware of other processors running a DSP at 192/24, including for example the $25K Meridan 861v6, and the aforementioned $40K ADA reference.
I agree 96 kHz is the common rate for high end processors. The benefits of 96 kHz are compelling over 48 kHz, but 192 kHz, not so much. The new Datasat RS-20i runs at 192 kHz.
Quote:
Originally Posted by edorr View Post

Good point. Someone posted on a forum the Oppo 93/95 only support 192/24 on 2 channel and downsamples 5.1 192/24, but the online Oppo specs are inconclusive.
to confirm 5.1 downsampling is not at work, you would have to play the 2 channel track on the 2L disc at 192/24 and see if this works with the ADA.
The BDP-93 manual states that it can output TrueHD 7.1 PCM at 192 kHz, so that implies it can do the same for PCM sources. But for DTS HDMA, 192 kHz is limited to 2-ch.
post #1982 of 2083
Quote:
Originally Posted by Roger Dressler View Post

The BDP-93 manual states that it can output TrueHD 7.1 PCM at 192 kHz, so that implies it can do the same for PCM sources. But for DTS HDMA, 192 kHz is limited to 2-ch.

The 2L 5.1 192/24 tracks are encoded in DTS-HDMA, which would then presumably be downsampled to 96/24 by an Oppo. So to test if the ADA does 196/24, you need to play the 2 channel track (presuming an Oppo or Oppo derivative is used as the source in this expiriment).
post #1983 of 2083
Ok, just done some more testing.

2L 192/24 5 channel dts mahd, 192/24 5 chan LPCM and 192/24 2 chan LPCM.

All get reported as such on the oppo 93 info display.

On the Ada software under format on every case except dts states 48k. No reference for dtsh.

Now I just checked the same process with an aix disc.

Dd tru hd 96/24 5 channel this gets reported as ddthd and 48k also. Same with the 96/24 2 channel LPCM.

But I believe their is a fault with the Ada software reporting the frequency rate as no matter what I play it states this 48k. Be it a rebook cd, dvd audio, blu ray.

All I can say is all play without hitch.

What this tells us I do not know.
post #1984 of 2083
Hi all

Got a response from a tech at ADA and the Suite 7.1HD can only handle up to 96khz LPCM. This means that the info on the homepage is wrong. I understand and agree that it is probably very hard/impossible to hear a difference between 96khz and 192khz, but I strongly dislike when specifications are wrong. And it is also causing me some trouble since I have to downsample some of my content in order to be able to play it...

Still unsure if MACH 4 has the same limitation.

One thing that doesn't quite make sense to me is that it looks like DTS HDMA can be up to 192khz. Shouldn't LPCM require less MIPS to decode than DTS HDMA?
Quote:
For the Suite 7.1 HD, the issue is that at 192kHz, we begin to run out of MIPS, hence the limitations. There is simply so much a processor can handle and we opted for other features like the PEQ and Dolby Volume (both requiring some very heavy lifting).

/ j
post #1985 of 2083
HELP.

I am only getting sound from rear surrounds, front sub and voices are almost inaudbible from LCR.

The ADA is showing all sources (SAT receiver, blu ray player, etc) as 2 channel in.

Can anyone help?

thanks

Mike
post #1986 of 2083
It sounds like a setting error on your part rather than a faulty SSP.

Check your LCR amplifiers, cabling , etc.

Check that your Blu ray disc is playing the movie (outputting multichannel) as start menus are 2 channel on occasion and Che k your display.

Likely something simple.
post #1987 of 2083
thanks.

Turns out it was my two DSP (QSC 922 UZ) that needed a reset. Just unpluged them and the ADA for a minute and voila! everything back to normal
post #1988 of 2083
I used to have some slight problem in my Suite HD1.4 during locking to incoming signals , maybe 2-5 second delay , I thought it was normal , but I now understand that it is due to excessive use of PEQ , I just turned off PEQ as I no longer need it - I have an Trinnov MC doing all EQ for me . I immediately notice that my ADA now locked to incoming signal with 1-2 second and seldom a miss . Just some note to those who may experience locking problem .

Larry
post #1989 of 2083
How does the Trinnov compare to the ADA's PEQ Larry?
post #1990 of 2083
No match ! Before using MC , I tried several days setting PEQ with an Audio Control SA3051 real time analyzer importing full band pink noise to the amplifier and afterward , I adjust the ADA PEQ and tried again now using full band pink noise from bluray test disc , this admittedly not being the ideal method & also time wasting but did allow me to trim up my system to an acceptable standard , the sound was good I thought but nevertheless , it did not correct for the phase shift from different placing of the speakers , this is one point that MC did magic , used to be 7 speakers sounding together , now actually blended as one big sound field , for example , I have one test disc with helicopter flying above head around all 7 speakers , used to be from speaker to speaker but now , it defines a true circle with no obvious boundaries among speakers . That amazed me and this one single point , to me is worth everything . I heard around from forums what MC could do for our HT system and I can now verified their claims . Please try it if you can even if your system is considered correctly setup , I think you can find something you don't know you were missing .

Larry
post #1991 of 2083
Yes what the trinnov mc does for phasing is just awesome. The sound field is nt just around you, it's directly behind you, slightly ahead.... It's exactly where the director of the film had wanted us the hear it. And what it does for bass control is mind blowing. Worth getting just an st2 for purely subwoofer control.

I just hope Dirac is half as good as I take delivery of my RS20i hopefully on Wednesday.
post #1992 of 2083
Nick, how is the Rs20i going? Any comments?
post #1993 of 2083
Going well, a few bugs or setup issues. Apart from that it is mind blowing. Just need to get Dirac installed. I have put more indepth thoughts up on the other thread and forum.
post #1994 of 2083
Quote:
Originally Posted by djnickuk View Post

Going well, a few bugs or setup issues. Apart from that it is mind blowing. Just need to get Dirac installed. I have put more indepth thoughts up on the other thread and forum.

mind blowing it's complicated, or mind blowing it's good Nick?
post #1995 of 2083
Oh, all good! Not difficult to use at all. The sound from the rs20i is truly a step up from the ada. Worth every penny IMO.
post #1996 of 2083
That is sad news for us with ADA !
post #1997 of 2083
Quote:
Originally Posted by Larry Ng View Post

That is sad news for us with ADA !

Not is Dirac Live is engaged.... Room correction is a major advantage.
post #1998 of 2083
Sorry. Dirac not engaged until I have it calibrated in new year. And I had peq engaged on Ada.

But don't forget the rs20i is double the cost of the crm4. The crm4, for it's price is better than all else upto 10k. The only pro I haven't heard to compare is the bryston sp3.
post #1999 of 2083
Cool, well I'm looking forward to being able to compare the AP20 next to the ADA suite smile.gif...... or may be not! rolleyes.gif
post #2000 of 2083
Forget the AP20 if you are thinking of home use IMO. sound quality wise v similar to the Rhapsody but with limited codec support, no bass management and no upgrade path. It is great for commercial but not for home.
post #2001 of 2083
Quote:
Originally Posted by ceenhad View Post

Forget the AP20 if you are thinking of home use IMO. sound quality wise v similar to the Rhapsody but with limited codec support, no bass management and no upgrade path. It is great for commercial but not for home.

Bass management and upgrade path aside, I thought the RS20i and AP20 where identical in the SQ stakes.
post #2002 of 2083
The rs20i has quite a lot of bits changed to make more audiophile than the ap20. Just looking at the dimensions. The rs20i is considerably deeper, probably due to improved power supplies.
post #2003 of 2083
Quote:
Originally Posted by djnickuk View Post

The rs20i has quite a lot of bits changed to make more audiophile than the ap20. Just looking at the dimensions. The rs20i is considerably deeper, probably due to improved power supplies.

I still find it interesting Nick, they make the RS20i more hifi, yet apparently the fan still sounds like a hair dresses salon?


I need a trip to Brighton smile.gif
post #2004 of 2083
Don't you mean a hoover, I saw the rs20i in action at a convention and the noise level coming from the unit put me off completely. I would have to put the unit it in my basement or another room but should not have to at the price level.
post #2005 of 2083
Are you sure you saw or should I say heard an rs20i and not a rebadged ap20 as they were when they were first showing them pre release.

I have my rs20i only 4 ft from me right now and it's fan noise is on par with my jvc x30. It's a hell of a lot quieter than an UN modded Ada suite 7.1hd.

With the unit at -70 volume which is the lowest, ie, no sound from speakers, I can have it late at night at -63 ( very quiet) and the fan noise does not disturb me at all.

And you are welcome to my house any time you like! Although Christmas day is looking a little hectic. Ho ho ho!
post #2006 of 2083
It is a variable fan that runs faster when hotter. It can be fairly quiet to fairly loud in my experience. It is never audible to me if anything is playing. The Info screen shows at what rate the fan is running.
post #2007 of 2083
A fan? Really?
I could never have one as my equipment is in the room
post #2008 of 2083
Do you not have an Ada, thebland?
post #2009 of 2083
Quote:
Originally Posted by ceenhad View Post

It is simply stacking of levels in dsp. Boost+trim gain+overall volume defines output. By design this is limited iirc to 110dB. If signal exceeds this then a mute protects from hard clipping aka blown tweeters!
This is not directly related to amps and speakers other than suggesting the use of both a relatively low gain amp and speakers. Say no more than 27db in the amp and 85 in speakers. Typically trim gain is the hidden culprit not peq boost.

Having not suffered from any Audio drop out for a while after watching many an Action movie, she's back!

The movie 'Brave', same place each time, and right at the start. The end of chapter 1, around 4 minutes in, when the Bear rears up at the Merdia and mother, Fergus and men run over to defend the camp, Merdia rides off on horse back with her mother, the Bear then lunges forward at Furgus before gong to the next scene,

I can play this over and over again and what ever volume same result. At first I thought it must have been my streamer, but having connected my Blu ray player directly to the ADA proved otherwise. Now If I play this clip yet fast forward slightly nearer to the point in question, the Audio drop out never happens.

I didn't get time to lower my levels as suggested by Neil, I will try this when I get back from London, but what I do not understand is why it never happened when the clip is fast forwarded, what diffidence does this make???. confused.gif

I own an ADA suite 7.1hD, and this unit is connected to a UPS. Bryston 9bsst amp, Dynaudio speakers. I use an Audyssey 'silver' multi EQ pro, and Sub pro

Room size 26/13ft, sat 13-14 ft away from the front speakers

Trims:

L 10 DB
C 12 DB
R 10 DB
Sub -1.5 DB
Ls 11 DB
Rs 12.5 DB
Lbs 10.5 DB
Rbs 10.5 DB


I have just got a new amp for the Surrounds, so the surround trim setting should go lower/
Edited by magicj1 - 12/22/12 at 12:22am
post #2010 of 2083
There have been a lot of reports of Brave random dropouts. Seems yours is different as it is repeatable. Could you set the BD player to output PCM and see if the gap still happens?
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