What does anyone think of the pioneer 47ai?

kevyjo · 11th December 2003, 08:54 PM

I need to replace both my cd player and dvd; I had kindof given up on finding a universal player since performance on redbook cd's is paramount to me. SOOO, was wondering if anyone had any opinions on the performance of this player as a cd/universal player, and are there any potential DIY tweaks using the output link?

dwk123 · 12th December 2003, 02:59 PM

My understanding is that the audio section of the 47ai is the same as in the 45a, minus the firewire link of course. If the analog outs are your primary focus, you might be able to save some bucks and go with the 45a instead. The video performance of the 47ai is apparently better than in the 45a, but I don't recall the specifics.

I have the 45a, but have yet to subject it to a rigorous eval - I've just been using it as a dvd player and redbook transport. The Denon 2900 seems to have grabbed the attention of modders more than the 45a, but I think that ModWright mods them - you might look there for a basic overview of what's possible.

One curse/benefit is that I think the pioneers use a dsd->pcm converter chip. This is bad because supposedly these chips aren't great and you lose some of the sacd magic, but it's good because you only have one set of DAC's and output stages to mod.

blank527 · 12th December 2003, 04:39 PM

Hi,

I have a pioneer dv-747a.
Video is superb, no disadvantage or wat so-ever.
It has a cs4392 dac with DSD support.. wich I think you will find also in the 47ai.
The only thing I'm dissappionted that the analog power supply is fed with the same transformer. Wich will decrease the sound with servo interference.
I'm gonna change that with external trafo.
like this

Regards,
Remco Blankesteijn

kevyjo · 13th December 2003, 01:32 PM

As far as I understand it, the 47ai has an internal upsampler, and the 45ai does not. I know this doesnt garantee sound quality, but I would think the units would sound substantially different.

ojg · 14th December 2003, 03:20 AM

I read in a review somewhere on the 'net that the 47ai uses TI PCM1738 dacs. That is quite rare on a player that is now selling for <$600.

I've been quietly ogling this player myself but if it is true that it uses dsd-pcm conversion then that is a major bummer.

dwk123 · 14th December 2003, 04:12 PM

Quote:

Originally posted by ojg

I've been quietly ogling this player myself but if it is true that it uses dsd-pcm conversion then that is a major bummer.

Don't take that as gospel - it's just what I remember reading when deciding on the 45A. I'll have to open it up to see what's inside.

11th December 2003, 08:54 PM	#1
kevyjo diyAudio Member Join Date: Dec 2003 Location: Kansas City	What does anyone think of the pioneer 47ai? I need to replace both my cd player and dvd; I had kindof given up on finding a universal player since performance on redbook cd's is paramount to me. SOOO, was wondering if anyone had any opinions on the performance of this player as a cd/universal player, and are there any potential DIY tweaks using the output link?

12th December 2003, 04:39 PM	#3
blank527 diyAudio Member Join Date: Nov 2001 Location: Haarlem	Modding Hi, I have a pioneer dv-747a. Video is superb, no disadvantage or wat so-ever. It has a cs4392 dac with DSD support.. wich I think you will find also in the 47ai. The only thing I'm dissappionted that the analog power supply is fed with the same transformer. Wich will decrease the sound with servo interference. I'm gonna change that with external trafo. like this Regards, Remco Blankesteijn

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DIY project: mod of Pioneer DV-47Ai player audio board	arturas	Swap Meet	0	6th November 2005 08:20 AM
Pioneer dv-45a / dv-47ai mod info?	krisztoforo	Digital Source	1	1st March 2005 04:18 PM
pioneer pd-s 703	Raj1	Digital Source	2	25th August 2003 10:52 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

12th December 2003, 02:59 PM	#2
dwk123 diyAudio Member Join Date: Feb 2002	My understanding is that the audio section of the 47ai is the same as in the 45a, minus the firewire link of course. If the analog outs are your primary focus, you might be able to save some bucks and go with the 45a instead. The video performance of the 47ai is apparently better than in the 45a, but I don't recall the specifics. I have the 45a, but have yet to subject it to a rigorous eval - I've just been using it as a dvd player and redbook transport. The Denon 2900 seems to have grabbed the attention of modders more than the 45a, but I think that ModWright mods them - you might look there for a basic overview of what's possible. One curse/benefit is that I think the pioneers use a dsd->pcm converter chip. This is bad because supposedly these chips aren't great and you lose some of the sacd magic, but it's good because you only have one set of DAC's and output stages to mod.

13th December 2003, 01:32 PM	#4
kevyjo diyAudio Member Join Date: Dec 2003 Location: Kansas City	As far as I understand it, the 47ai has an internal upsampler, and the 45ai does not. I know this doesnt garantee sound quality, but I would think the units would sound substantially different.

14th December 2003, 03:20 AM	#5
ojg diyAudio Member Join Date: May 2003 Location: Norway	I read in a review somewhere on the 'net that the 47ai uses TI PCM1738 dacs. That is quite rare on a player that is now selling for <$600. I've been quietly ogling this player myself but if it is true that it uses dsd-pcm conversion then that is a major bummer.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)