Meridian Unplugged - Powered by MrTechGuy.co.uk Forums Discussion Meridian - Systems Help: External DAC's and Digital Bypass

Hi Guys,

Finally managed to get my DAC working out of the digital mains L/R output with variable volume control.

I think the problem that I was having was whenever I was trying to setup the 568.2 manually from the front panel, any devices that I had actively connected into the digital input sockets, interferred with the changing of the settings.

In the end, I had to move the digital connection for the DVD player off from D2 (DVD) to CD (D1) and applying the 2.0 A setting then worked. Everytime I had the DVD player connected to D2 and made the manual change, the 568.2 thought that I had a Meridian DVD player connected, checked the Meridian DVD check box within its setup as well as changed the port mapping from D2 to multichannel, which is why I nevery got any signal out of the DVD player. By removing the DVD player from D2, I could make the change and all worked after that. I was then able to plug the DVD player back to pot d2 and so far no problems.

I did set my DAC to PLL:Wide intially but I found out that I could still use the DAC in all three settings, Crystal/narrow/wide. From a DAC point of view, there are no restrcitions as to what setting I can use.

I also worked out that setting the H/S Flag made no difference to deciphering the signal from the Meridian to which the Lavry could understand. However, setting the H/S flag to 'Y', did actually make a difference to the signal being sent through the DAC whereby the Lavry was able to detect and change up to 88Khz or higher to match the incoming signal rate, instead of beforehand where the signal syated at a constant 44khz. Now, CD can play up to 88Khz or higher and movies at 48khz or higher. I only have a standard DVD player, no 24-bit/192khz DACS. As I mentioned beforehand, I'll be waiting for Oppo to release their DV-938H universal DVD player. I will also be hunting for a Marantz CD-12, which should do me for a while before I start upgrading again.

All round everything's turned out quite well.

One observation so far that I have noticed is that when playing a DVD, the menu is at the normal audible level (prologic stero) but as soon as I play movies in AC3, the volume level is considerably lower.

On another note, I've sent a question off to Meridian about upgrading the firmware on the 568.2 to the latest firmware v2.5b9.

Firstly, I don't know which program they are talking about that applies all the 6 files at once but I find that I can only apply each file one at a time. This is no different to the files being applied the normal way, if that's what you can call it?

The only file that I am concerned with is TYPES568.MFU. When writing this file to the 568, a message pops up saying that it is not designed for the 568 and any attempts to write this file may render the 568 useless.

Has anyone else had any problems writing this particular file to the 568.2?

Thanks for all your help guys, very much appreciated.

Cheers
Mark.