Installed ALWSR's In My Marantz DV7600

dantwomey · 2nd May 2007, 05:33 AM

As I illustrated in a previous post I just finished installing my ALWSR regulators in my Marantz DV7600. I found that they fit nicely on the back panel just behind the SMPS. Here's some pics where I removed the back panel. Drilled the holes and mounted the regulator boards and then re-installed the back panel. The yellow cable you see is the 12v feed for the NEWClassD audio clock waiting to be installed.

Now that they're installed you ask how do they sound? Changes are very subtle. I believe I'm getting slightly more detail and bass definition. Damn that Peter Daniel. The 1543 DAC I purchased from him has really raised the bar here. Improvements are going to be harder and harder to guage with a machine that is already very good. One thing this tell's us is that upgraded regulators will work with this SMPS. The benefits will have to be obtained from others travelling the same path and being more methodical with their testing.

Regards,
Dan

Leolabs · 3rd May 2007, 01:06 AM

Really nice!!!!!!!!!!!!!!

Gasho · 9th December 2007, 09:26 AM

Khm! Nice looking but Yung regs with long wiring are not electrically good solution especially in power supplyes for digital circuits.

dantwomey · 9th December 2007, 12:00 PM

Limited space and therefore limited placement options. I would've preferred the NewClassD UWB regulator but they weren't available at the time.

Regards,
Dan

analog_sa · 9th December 2007, 03:43 PM

Have you checked the output of the Jungs on a scope?

dantwomey · 9th December 2007, 03:56 PM

Quote:

Originally posted by analog_sa
Have you checked the output of the Jungs on a scope?

I could. Are you suggesting the 6 inch leads will have an impact?

Because of the following post:

SMPS Mods

I may take a scope to this supply and do a before and after on several more mods.

Regards,
Dan

analog_sa · 9th December 2007, 04:11 PM

Quote:

Originally posted by dantwomey

Are you suggesting the 6 inch leads will have an impact?

No. It certainly depends on the specific part selection for your Jung but several of mine were oscillating without the 10ohm resistor on Vsense.

maxlorenz · 9th December 2007, 06:17 PM

Hi,

About ALWSR, maybe you will be interested in this:

http://www.pinkfishmedia.net/forum/s...nce+multiplier

Have fun

M

dantwomey · 9th December 2007, 06:25 PM

Quote:

Originally posted by analog_sa

No. It certainly depends on the specific part selection for your Jung but several of mine were oscillating without the 10ohm resistor on Vsense.

Mine work fine. Their only 'shortcoming' was that I didn't find the improvement very noticeable given the expense and work of putting them together.

Regards,
Dan

2nd May 2007, 05:33 AM	#1
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	Installed ALWSR's In My Marantz DV7600 As I illustrated in a previous post I just finished installing my ALWSR regulators in my Marantz DV7600. I found that they fit nicely on the back panel just behind the SMPS. Here's some pics where I removed the back panel. Drilled the holes and mounted the regulator boards and then re-installed the back panel. The yellow cable you see is the 12v feed for the NEWClassD audio clock waiting to be installed. Now that they're installed you ask how do they sound? Changes are very subtle. I believe I'm getting slightly more detail and bass definition. Damn that Peter Daniel. The 1543 DAC I purchased from him has really raised the bar here. Improvements are going to be harder and harder to guage with a machine that is already very good. One thing this tell's us is that upgraded regulators will work with this SMPS. The benefits will have to be obtained from others travelling the same path and being more methodical with their testing. Regards, Dan

9th December 2007, 06:17 PM	#8
maxlorenz diyAudio Member Join Date: Oct 2003 Location: osorno , Chile	Hi, About ALWSR, maybe you will be interested in this: http://www.pinkfishmedia.net/forum/s...nce+multiplier Have fun M __________________ Cheapest horn speakers: https://picasaweb.google.com/lh/phot...eat=directlink

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3rd May 2007, 01:06 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Really nice!!!!!!!!!!!!!!

9th December 2007, 09:26 AM	#3
Gasho diyAudio Member Join Date: Nov 2004 Location: Zagreb	Khm! Nice looking but Yung regs with long wiring are not electrically good solution especially in power supplyes for digital circuits.

9th December 2007, 12:00 PM	#4
dantwomey diyAudio Member Join Date: Feb 2002 Location: Canada	Limited space and therefore limited placement options. I would've preferred the NewClassD UWB regulator but they weren't available at the time. Regards, Dan

9th December 2007, 03:43 PM	#5
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	Have you checked the output of the Jungs on a scope?

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