"Audiocom Mods & Services"

[Marco]

Hello Marco

In my experience the length of time a CD player takes to read the Table Of Contents (TOC) has no bearing on the sound quality of the CD player. The timing variations are down to the type of laser and servos used, the with players like the Sony SCD-1 there are two lasers and the unit has to go through a lengthy sequence before you get the TOC.

The CDP-R1, CDP-x777ES are amongst some of the fastest I have used!

Hi Mark,

Thanks for that. I just wondered if the Sony's super-fast reading of discs related in any way to its superb sound quality - obviously not.

Btw, can you outline the next set of modifications that you propose for the DAS-R1? Just so I have a clear idea in my head what the plan of action is

You may also wish to discuss the cryogenic treatment you've mentioned to me to other members. I think there's mileage to be had in having components treated as well as the likes of cables and valves.

Anyway I look forward to hearing your thoughts on the matter!

Regards,
Marco.

[Audiocom AV]

Hello Marco

The outline plan for the next install of the upgrades for your DAS-R1 follow two main paths, the first is the regulated power supplies. We have recently released the *Ultra-regulator* which is designed using the same custom voltage reference module as the ‘Ultraclock’. The Ultra-regulators will be used for the main +5V digital supply which delivers power to the DIGITAL PCB where chips like digital filter, logic gates are situated ,and also for the +5V DAC supply. What level of improvements the Ultra-regulator brings cannot be simply summed up in terms of extra detail, dynamics, PRAT; what is most striking is the music looses a digital signature that you are accustomed to from good quality CD playback that you might attribute to the 16-bit technology or quality of Compact Discs. The sound is that much more ‘analogue’ that is removed from what you might typically expect from hi-end CD or even SACD.

The next step is the clock system, your DAS-R1 already uses a Superclock 4-S running from the internal power supplies, the logical step is to upgrade to the Ultraclock reference master clock and master clock power supply. This is a major step up from the Superclock 4-S alone, bass delineation timing and control is astonishing as are dynamics, tonal naturalness, detailing.
There are also various component level upgrades to make such as I/V converters, regulator bypass and power supply de-coupling.

Over the last 8 months we have been investigating the use of Deep Cryogenic Treatment (DCT) on a variety of different audio products including audio modules like the Ultraclock, power supplies, and Compact Discs. The company who complete our DCT are Frozen Solid Audio who has been applying DCT to cables for companies like Townshend Audio for several years. Our first product to receive DCT was an Ultraclock installed in a DAS-R1 running on the internal DAS-R1 power supply. The DCT’d Ultraclock with no burn-in was exchanged for the standard Ultraclock in the system and what I heard was remarkable. With DCT the lower frequencies have greater definition, control and accuracy, vocals and instruments have a truer tonal balance, realistic timbre; the sound projects into the listening room with increased spatial qualities.

We have since had DCT applied to complete CD & DVD players, one of the first benefits customers report back is the reduction in background noise, lower noise floor. Not all CD/DVD players can be treated but the cost against improvements makes DCT a best buy.

Have a good weekend.

Regards
Mark

[Audiocom AV]

Hi Mike

Sorry to learn the news on your DVD-2900. This problem is new to me and I would like to refer you to a freelance engineer who will be able to help. Please e-mail me at mbartlett@audiocominternational.com for details.

Regards,
Mark

[Marco]

Hi Mark,

It sounds like there's still quite a bit more to come

Considering how amazing it sounds as it is, I shudder to think how good the Sony will be after what's you've suggested has been done!

Mmm...yummy

Marco.

[Filterlab]

That's certainly an odd problem, are any of the other controls playing up at all?

I know that certain material played through the 2900 will prohibit the use of Pure Direct and some will only play with it engaged, is it only on certain discs or is it on everything?

[Mike]

Nope, all other controls work fine.

Makes no difference what disk is in.
'Mode 1', which should turn off video cct's doesn't, still plays movies.
'Mode 2', which should turn off video cct's and the display doesn't, still plays movies and the display remains lit.

Cheers,
Mike.

[Mike]

Hi Mike

Sorry to learn the news on your DVD-2900. This problem is new to me and I would like to refer you to a freelance engineer who will be able to help. Please e-mail me at mbartlett@audiocominternational.com for details.

Regards,
Mark

Thanks Mark, I'll drop you an email tomorrow. I've done fourteen hours over time today and need my bed right now!

Cheers,
Mike.

[snapper]

Hi Mark

I have a Perpetual Technologies P 1A and P 3A.

What could be done to upgrade them.

And what would the cost be approx.

ATM it's sitting unused,being outperformed by the Beresford DAC 6/3.

[snapper]

Bump

[Audiocom AV]

Hello David

The Perpetual Technologies P 1A and P 3A are good designs but would benefit from component level upgrades to power supplies, diodes & capacitors, lower noise regulators & improved bypassing, higher performance active op-amps stages in the post DAC stage.

I would estimate the above can be done for approx. £300.00, but we would need to peruse the circuits to give you an exact costing.

Regards,
Mark