Meridian Unplugged - Powered by MrTechGuy.co.uk Forums Discussion Meridian - Systems Trinnov and Meridian at Audio Images

The Amethyst have an extra analogue PS(Torroid transformer) for the analogue part.

See under "features" and then "power"

The Altitude32 uses three Power supplies, 2*switch Mode for processing and a linear for audio.

Rick

I did considerable experimentation before I zeroed in on my present config. My configuration involves two amplification channels for Front (8000+sub), and analog speakers all around.

1. I set the 8000SE to 87 statically and took the Coax Digital fronts from Trinnov to the 8000. Used a separate Trinnov analog channel for the Front subs. Used Trinnov analog channels to surround analog speakers. (No 861 in this config).

2. I used Coax Front from Trinnov to 861, and then MHR to 8000. Used a separate Trinnov analog channel for the Front subs. Used Trinnov analog channels to surround analog speakers. (861 in this config).

Finally settled on 2.

In both cases volume control was via Trinnov. I understand that in theory the volume control applied on Trinnov coax out has the potential to degrade it, but
1. extensive reading assured me that this degradation is not that significant
2. I always listen at volumes around reference anyway, never at low volumes; and my listening room is large

I am very happy with the way the Trinnov RC has achieved total balance in the bass between the 8000SE and its (separate) sub, even though they are fed by different channels of the Trinnov. Also am using all the fancy features like 3D placement etc.

Made a world of a difference.

Shankar

My unit duplicates the Front channels alone into a pair of RCA Coax Digital Outs.

Or... maybe just free licenses the MHR?

Special for people with more the two DSP:

Rick, can we hear beside the Altitude the ST2 HifI?
That the economic solution for 4 channels.
That is a "cheap" solution compared to the Altitude32.

It's for that people, that have an M processor and DSP already.
They want to listen with more then 2 speakers and DSP presets like "Trifield" or "music" and so on.

Signal flow:(all digital)
Source>>(dig in) 861 (DSP´s outs)>>>(dig in) TrinnovST2 (dig out)>>>front DSP`s.
The sides and rears are still connected to the M processor as current-no change.

The latency time from the Trinnov is equal for the fronts so no sound changes, and the sides and rear are just get very few ms delay even at all.

That is not important as the presets have current delay of more then 20 ms so add some ms is no problem-only your room get "larger".

Volume control and communication:

ST2 is full (no volume control)
861 or other M-proc is connected audio wise to the 861 and
com wise to the speaker.
In that way there is no even theoretical interference possible on the Trinnov and the volume control for the speaker works in the current/standard way.

Only MHR could be an issue, but that can be solved with a "trick". I think that is a very good solution for "economic channel user".

Owner of SL processors need two cable converter (audio only) on each side of the Trinnov.
As SL and digital AES are equivalent here, only a cable with two different connectors are necessary-same physical/electrical signal.

Rick, that cable adapters are a good "add on" to sell so the buyer get all what he need.

Legacy M-proc owners just need two digital RCA extra audio cable between M-proc output and SPDIF in on Trinnov.

Placing the Trinnov BEFORE the M-Proc exclude the ID40/41 card or streaming to get the advantages from Trinnov, so for all other sources it works.

Next time a solution for analogies...

Hi Robert,

At the start we're only looking to use Trinnov for the new object based immersive sound formats such as Atmos.
We'll see how we get on with the Altitude 32 in this roll before investigating any other applications.

Cheers,

Rick

I don't think an 861 Processor needs to be in there, it will only complicate things.

No MHR is no big deal. As long as speakers control volume you should be all set.

Even though some systems claim 24bit, 32bit digital attenuation that is total B.S.

Even good DAC's only get 19 bits of "effective" resolution. By using digital attenuation you shift the data into the dirt. Also if not shifted in powers of 2 it has to be redithered.

Even the Meridian Prime DAC only gets 17 bits of resolution. No room for digital attenuation.

Larger word sizes are good for processing steps but not for attenuation.

Maybe projects like this will force Meridians hand on what the future looks like sooner than they planned.

Go for it.

I hope so, they need a shake up.

Regards,
Carl

It would be lovely if they did but very much out of character. Fear of tipping their hand to the opposition is the usual excuse. However, these days M have fallen so far behind the curve I doubt if the opposition would even notice.

~M~

Regrettably, I think you're right.

Thanks guys. Very interesting. As to room interface @JimK, I agree. I have a dedicated room designed by an acoustician with the correct treatments. So fundamentals taken care of. I just am sensing the lack of options my processor gives. Right now its meeting my needs, but I would like to stay aware of other options. Critical for those of us who have bought into the whole system. Its a substantial investment, it's worth paying attention.