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» Film-Tech Forum   » Operations   » Digital Cinema Forum   » Dolby CP-750 vs Datasat AP20

Author Topic: Dolby CP-750 vs Datasat AP20
Peter Das
Film Handler

Posts: 50
From: India
Registered: Feb 2008

 - posted 08-18-2013 08:22 PM      Profile for Peter Das   Email Peter Das   Send New Private Message       Edit/Delete Post 
I am converting a cinema for Digital with Christie Solaria.
I want to know what is the benefit of having a Dolby Cp-750 or a Datasat AP20? currently I am having CP-650 D.

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Alan Gouger
Master Film Handler

Posts: 480
From: Bradenton, FL, USA
Registered: Jul 2000

 - posted 08-18-2013 09:21 PM      Profile for Alan Gouger   Author's Homepage   Email Alan Gouger   Send New Private Message       Edit/Delete Post 
The 750 is a great unit but if you want to screen alternative content such as Blu-ray only the Datasat will handle the DTS stream.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12294
From: Annapolis, MD
Registered: Dec 1999

 - posted 08-18-2013 10:35 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
The CP750 is a relatively basic DCinema processor though it handles about 90% of what most cinemas want/need. There are not what I would call too many frills to it. Yes, it can handle Surround 7.1, but so can most any other processor too. It will decode Dolby Digital off of BluRays (or DVDs) coax/optical output but the vast majority of BluRays are encoding DTS for their "best" tracks in English.

The Datasat AP20 is a MUCH more configurable box and is a 16x16 matrix. It will decode DTS right off of the HDMI signal and has a mini-HDMI switcher to it. So, if you want something you can configure and has some flexibility to it, the AP20 may be your box.

Note, you can also add an outboard Video processor that will handle the audio and feed that into the CP750's multi-channel analog input and you may find that that video processor will do more of what you want.

It really depends on what your needs are.

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Harold Hallikainen
Jedi Master Film Handler

Posts: 797
From: Denver, CO, USA
Registered: Aug 2009

 - posted 08-18-2013 10:46 PM      Profile for Harold Hallikainen   Author's Homepage   Email Harold Hallikainen   Send New Private Message       Edit/Delete Post 
The USL JSD-60 will decode both Dolby Digital and DTS, but only through S/PDIF or TOSLINK inputs, not HDMI.


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Peter Das
Film Handler

Posts: 50
From: India
Registered: Feb 2008

 - posted 08-19-2013 04:39 AM      Profile for Peter Das   Email Peter Das   Send New Private Message       Edit/Delete Post 
So Does Datasat Ap20 decode dolby too? I need DTS too.

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Carsten Kurz
Film God

Posts: 3865
From: Cologne, NRW, Germany
Registered: Aug 2009

 - posted 08-19-2013 06:40 AM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
It does Dolby AC3 decoding and all common DTS formats up to Master Audio (lossless), on HDMI and Toslink + S/P-DIF (Masteraudio is only available through HDMI).

The CP750 is enough for auditoriums where DCI content is played 99% of the time.

The HDMI and switching capabilities of the AP20 are a real benefit. You can also have simultaneous Mic and stereo NS presets which makes it a nice option for lectures and presentations.

And it operates flawlessly - no glitches, no noise on HDMI or other source switching. We are extremely happy with it. Very easy to configure and adapt on the fly if needed. And it includes a very powerful automation module.

You have instant wireless remote control of all functions over Wifi from a notebook, tablet or smartphone (plus wired auditorium control at no additional cost, where the CP750 needs a very expensive remote fader unit).

- Carsten

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Marco Giustini
Film God

Posts: 2565
From: Reading, UK
Registered: Nov 2007

 - posted 08-19-2013 12:37 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
The AP20 has everything you may need. I haven't got much experience with it and I've learnt that I should play with something before announcing its benefits, but on paper really is a very comprehensive machine - not to forget the DIRAC EQ.
If the product is reliable and does not have glitches as Carsten suggested, it's definitely a good choice.

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