URL Collection of Commercial Single Ended Integrated and Power Amplifier Devices

[tiefbassuebertr]

URL Collection of Commercial Single Ended Solid State Integrated and Power Amplifier Devices

After read the article "Single Ended Class A" from Nelson Pass about www.firstwatt.com/downloads/seclassa.pdf and after simulation and test of a wide range of different circuit designs I hate the so called "True Complementary" circuit designs for output power stage, because the true complementary power transistor pair is for me a mythos resp. a tall story. The perfect symmetric character exist in the mind of most well-known famous designers so as on the schematic diagrams, but not in real life; both by BjTs and MOSFETs. Nevertheless - unfortunately most of the audio amplifier designs are make in this kind (or I find designs with output tubes).
Therefore the follow URL collection of all commercial amplifiers with output circuit solid state designs without the so called "True Complementary". I have found all listed URLs below on the web in the last years.

If URL already death, please use http://www.archive.org/web/web.php and copy this death link about right click.You get a chronology overvview. At second step you choise the wanted date of the archived webstite. For example:
www.passlabs.com - copy in http://www.archive.org/web/web.php - click on "Apr.06.1997" and you see the website from "Daddy Pass" in the Aleph aera 12 years ago.
(http://web.archive.org/web/19970406103257/www.passlabs.com/products.htm)

SE versions with very high idle current (> 4A) and low output power (arround 5W) especially for high quality tweeter drive (e. g. SA8535 from Stage Accompany) in bi-amping systems, I found nothing.

I hope, for some members this list offer a good overview. It is very hard to find such overview on other places in the web, because the most designs of amplifiers - as mentioned earlier - based of complementary transistor pairs.
If not, I have to do in most cases with tube (valve) output power stages.

Perhaps some members know about additional interesting URLs from commercial brands.
Please excuse my not perfect english - I work with the language tools by google.


BEAR Labs "SE-MOSFET"
http://www.bearlabsusa.com/
http://web.archive.org/web/20060620064351/www.bearlabsusa.com/NEXT/SEMosfet-B&W.JPG
bluecircle "BC-2"
http://www.soundstage.com/das_bc2.htm (Test blue circle BC-2 foto in Soundstage 1/97)
Buscher (Modul, Gain stage + POWER SE AMP)
http://www.buscher-endstufen.de/
Greenwall "Julio" and "Small One"
http://web.archive.org/web/*/http://www.greenwall.de/de/julio.htm (Audiophile 1/2001)
http://web.archive.org/web/*/http://www.greenwall.de/de/smallone.htm (Image-Hifi 6/97)
INnovative Audio "Ultrapath"
http://www.innovative-audio.de/ Single Ended Mono Poweramplifier
http://www.innovative-audio.de/produkt Eintaktmonoend.htm
Marchand "EC 616"

http://www.marchandelec.com/ec616.html
http://www.tnt-audio.com/ampli/march_ec626_e.html
passlabs (wide range of SE Versions)
(Nelson Pass, X-Series, XA-Series, AlephO Series, Aleph-Series and "First Watt")
www.passlabs.com und www.passdiy.com
Paravicini "M 100 A" (SE + Transformer)
M100A, M100 A, M 100A (Test in Image-HiFi, 4/2001)
http://www.envogue-24.de/Neue Seiten/ear/M100A.html
http://www.hometheaterreview.com/eq...ravicini_m100a312_tube_amp_reviewed002186.php
Pathos "TT" ("Twin Tower", SE Sourcef. + Inductor)
Model TT (Twin Towers) Integrated Amplifier SE
http://www.pathosacoustics.com/twineng.htm
www.highend.cz/productpages/pathos/testy/1999-02TTTheAbsoluteSound.pdf
Sudgen A21SE Series
SE = "Single ended" not "Special Edition" Test in Image HiFi 3/2007
http://www.sugdenaudio.com/range/overview3.htm
www.roksan.de/productsites/manuals/sugden/sugmus.pdf
http://www.soultosoleaudio.com/pdf/Sugden Masterclass Hi Fi World December 2007.pdf
Valvet E1
http://www.valvet.de/bricks/e1/ (Test in "Hörerlebnis" Nr. 61)
http://www.valvet.de/presse/
http://www.highend-electronics.com/16.html
http://www.audiogon.com/cgi-bin/cls.pl?ampstran&1249765888
Ypsilon "VS 100" "YS 100"
http://www.amadeus-audio.co.uk/ypsilon/vs-100.htm (VS-100 YS-100)
http://www.amadeus-audio.co.uk/ypsilon.html (Übersicht)
royaldevice "BLU BAY" (driver transf. + SEPP Power-Amp)
http://www.royaldevice.com/BluBayEng.htm
http://www.royaldevice.com/BEmeasures.htm
http://www.royaldevice.com/BEschemaeng.jpg

 

[tiefbassuebertr]

Are there news about currently solid state single ended power amplifier?

 

[Bone]

It would be nice if these links led directly to the schematics of the amplifiers so that a comparison could be made.

 

[tiefbassuebertr]

It would be nice if these links led directly to the schematics of the amplifiers so that a comparison could be made.

I think so, too, but unfortunately the most commercial brands don't release their circuit diagrams/schematics.

 

[tiefbassuebertr]

Are there news about currently solid state single ended power amplifier brands?

 

[Rafael L]

georgea

 

[Rafael L]

georgea

Sorry my niece typed at PC

 

[Nelson Pass]

Are there news about currently solid state single ended power amplifier brands?

It's a pretty thin category.

😎

 

[tiefbassuebertr]

Are there news about currently solid state single ended power amplifier brands?

there are several new additional kit suppliers, but where are the commercial brands of such amplifiers?

 

[tiefbassuebertr]

A new power amplifier from Reimyo:
model KAP-777
perhaps a "Single Ended" classA
about
REIMYO KAP-777 Power Amplifire
I read
It’s a unique Single Mos FET driven power amplifier
Perhaps Class-G with Single Ended Class-A main part (see data for output power)?
Who knows more?

 

[korben69]

6moons audio reviews: Reimyo KAP-777 😉

 

[tiefbassuebertr]

I am still looking for commercial products with small output power in the aera between 2 and 10 watts in the kind of those descripted by
http://www.diyaudio.com/forums/pass-labs/215392-amp-camp-amp.html

 

[tiefbassuebertr]

Update post #1:
BEAR Labs "SE-MOSFET"
BEAR Labs - Audiophile Equipment
http://web.archive.org/web/20060620064351/www.bearlabsusa.com/NEXT/SEMosfet-B&W.JPG
bluecircle "BC-2"
SoundStage! Equipment Review - Blue Circle BC-2 (01/1997) (Test blue circle BC-2 foto in Soundstage 1/97)
Buscher (Modul, Gain stage + POWER SE AMP)
Home Andre Buscher Audiotechnik - Andre Buscher Audiotechnik - Puristische Eintaktverstarker
Greenwall "Julio" and "Small One"
Wayback Machine (Audiophile 1/2001)
http://web.archive.org/web/*/http://www.greenwall.de/de/smallone.htm (Image-Hifi 6/97)
INnovative Audio "Ultrapath"
http://www.innovative-audio.de/ Single Ended Mono Poweramplifier
http://www.innovative-audio.de/produkt Eintaktmonoend.htm
Marchand "EC 616"
http://www.marchandelec.com/ec616.html
http://www.tnt-audio.com/ampli/march_ec626_e.html
passlabs (wide range of SE Versions)
(Nelson Pass, X-Series, XA-Series, AlephO Series, Aleph-Series and "First Watt")
www.passlabs.com und www.passdiy.com
Paravicini "M 100 A" (SE + Transformer)
M100A, M100 A, M 100A (Test in Image-HiFi, 4/2001)
https://web.archive.org/web/20080625224540/http://www.envogue-24.de/Neue Seiten/ear/M100A.html
https://web.archive.org/web/2009012...ravicini_m100a312_tube_amp_reviewed002186.php
Pathos "TT" ("Twin Tower", SE Sourcef. + Inductor)
Model TT (Twin Towers) Integrated Amplifier SE
https://web.archive.org/web/20080204152656/http://www.pathosacoustics.com/twineng.htm
http://www.audioaffair.co.uk/pathos-tt-remote-reference-integrated-amplifier
www.highend.cz/productpages/pathos/testy/1999-02TTTheAbsoluteSound.pdf
Sudgen A21SE Series
SE = "Single ended" not "Special Edition" Test in Image HiFi 3/2007
https://www.sugdenaudio.com/a21se-integrated-amplifier
Valvet E1
http://valvet.de/?lang=en
https://web.archive.org/web/20090223015620/http://www.valvet.de/bricks/e1/ (Test in "Hörerlebnis" Nr. 61)
Ypsilon "VS 100" "YS 100"
http://www.amadeus-audio.co.uk/ypsilon/vs-100.htm (VS-100 YS-100)
http://www.amadeus-audio.co.uk/ypsilon.html (Übersicht)
royaldevice "BLU BAY" (driver transf. + SEPP Power-Amp)
https://web.archive.org/web/20081216052432/http://www.royaldevice.com/BluBayEng.htm
http://www.royaldevice.com/BEmeasures.htm
http://www.royaldevice.com/BEschemaeng.jpg

A friend of me is looking for a commercial single ended solid state power amp, that is build as easy as possible, i. e. according one of this both
projects (only one transistor in the signal path):

1) Pass ZEN - go to
https://www.passdiy.com/project/amplifiers/zen-variations-1
2) Andrea Ciuffoli's Power Follower 99
http://www.audiodesignguide.com/my/Follower_99c.gif
http://www.audiodesignguide.com/articles/Power_Follower/Electronics_World_pg2.jpg
http://www.audiodesignguide.com/articles/Power_Follower/Electronics_World_pg3.jpg

Which commercial products are currently on the marked ?
Thank you very much for advices.

 

[tiefbassuebertr]

any news despite popularity of Class D ?
(except this line up:
https://www.passlabs.com/product_tags/integrated/ )

 

[tiefbassuebertr]

A friend of me is looking for a commercial single ended solid state power amp, that is build as easy as possible, i. e. according one of this both
projects (only one transistor in the signal path):

1) Pass ZEN - go to
https://www.passdiy.com/project/amplifiers/zen-variations-1
2) Andrea Ciuffoli's Power Follower 99
http://www.audiodesignguide.com/my/Follower_99c.gif
http://www.audiodesignguide.com/articles/Power_Follower/Electronics_World_pg2.jpg
http://www.audiodesignguide.com/articles/Power_Follower/Electronics_World_pg3.jpg

Which commercial products in this circuit design are currently on the marked (except Buscher Audio from Germany) ?
Thank you very much for any advice.

 

[cumbb]

Does anyone have any shots of the inside of the Greenwall Julio?
I would like to take a look;-)

http://web.archive.org/web/20060715154414/http://www.greenwall.de/de/julio.htm

 

[cumbb]

Bought the Audiophile 1/2001. German magazine. I wanted to look into the Greenwall Julio;-)
Per channel: One IRFP 150 as amplifier. As constant current source probably two IRFP 140, with a small TO-92 as driver.
These components, whether MosFets or electrolytic capacitors, are not chosen according to sonic considerations - I had heard comparatively meanwhile.
Many suggestions to revise these devices to bring out still quite a lot sonically!

 

[cumbb]

Constant current source 2 x IRFP 9140 - with glasses;-)