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-   -   NE 5532 PreAmplifier from Doug Self, Elektor 2012 (http://www.diyaudio.com/forums/chip-amps/214635-ne-5532-preamplifier-doug-self-elektor-2012-a.html)

Saege 17th June 2012 07:17 AM

NE 5532 PreAmplifier from Doug Self, Elektor 2012
 
Hi,
currently I started building the preamplifier according to Douglas Self as published in Elektor 2012.

Do you have already experience with building this amplifier
or do you run it already?

First impressions from my one are found here: AUDIO-PreAmp2012-EN

Thanks for sharing,
best regards,
Bernd

Saege 20th June 2012 08:32 PM

Hello,
today I have added more images to the website. If you like...

best regards,
Bernd

Bigtone 31st July 2012 05:13 PM

How many people here are building this preamp?
 
Hi Bernd,

I checked out your website and it is a nice build you have there! I am interested to know how many other Doug Self fans there are in the forum building this preamp.

I have attached a few picture of mine so far!

Any comments form anyone always appreciated.

Bigtone:)

Mooly 31st July 2012 05:24 PM

Have you seen this thread ?
http://www.diyaudio.com/forums/solid...mp-design.html

Bigtone 31st July 2012 05:28 PM

Hi Mooly,

Yes but I felt that this thread has lost its way a bit!

I wanted to get more specific build information from other members that may be building this pre amp.

Cheers

Tony

muskyhuntr 13th August 2012 04:49 PM

3 Attachment(s)
Hi All;

Thought I would post a couple of pictures from my build. Waiting on a few parts to finish. I am having a problem designing the rear panel. Hard to get all the sockets to line up and a little expensive for trial and error. Has any one designed one using Front Panel Express or its sister company Schaeffer-AG in Europe? Could use the help.

Jim

PS This is my first post. Don't know if I have up loaded images properly.. We'll find out.

Mooly 13th August 2012 05:50 PM

Nice job muskyhuntr :)

ps. your images look fine and are nicely sized. I wish everyones were like that.

You must post your listening impressions when its completed.

muskyhuntr 24th August 2012 09:36 PM

Hi Every One;

Fired up my pre-amp in my main system. In a word or two, I am very happy with this design.

A little back ground on my system.
-CD Player California Audio Labs Icon MK II
-Power Amp Bryston 3B ST
-Speakers Advent Heritages
-Wires by Straight Wire.

Some of the CD's I listened to were Bolero, Magical Mystery Tour, Beethoven's Fifth, Tchaikovsky 1812, Kodo, and Iron Butterfly's Ina Godda Davida.

I mostly listen to classical music and 60's and 70's rock. I don't have golden ears so I won't say that veils were lifted etc. What I found is that this pre-amp is at least an equal to my Rotel RSP 980. I thought lows were very good. Attack and decay was first rate. And voices were also very good. One thing I noticed on Magical Mystery Tour was that I thought the vocals had a bit more detail than in previous listenings. On the Kodo CD, drums were tight and detailed. (This particular album needs to be heard with a sub, but sounded really good with the Advents by them selves. Between tracks, I could hear no hum. By the way, all listening was done in unbalanced mode.

When I first applied power to the pre-amp without any source material., I found that the chips ran fairly warm. However, when source material from the CD was passed through, they did not get quite as warm.. The heat sinks on the regulators were a bit warmer though when source material was used. I did not use my meter to get accurate temp. readings. I have read in other places that this pre-amp runs on the warm side.

To do's. Have to design rear panel and have it fabricated. (any help would be appreciated) Put some shielding around the power supply. And finish the phono board. I am waiting on the last one to see how different caps behave for others who are building this pre.

I will re post when I have a final assembly.

Jim

Mooly 25th August 2012 07:00 AM

Thanks for the listening impressions Jim. Sounds like you are enjoying the results :)

The 5532 does run a little warm as it draws around 15 ma worst case (around 0.5 watt) although most specimens draw less than the max figure.

AndrewT 25th August 2012 12:59 PM

You can slip on one of those IC sinks, with goop on both top and bottom faces.


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