VINTAGE series

[canuckaudiog]

Oh my dear god the B-2302 and C-2302 is GORGEOUS.

I think I may have to try and get myself this combo. Or at least the power amp, that thing is juicy!!!

 

[JOMARK911]

Wait till you find one. That is .. if you find one.
It"s not only the power amp. The pre amp is all the money , in that combo.
ONE OF THE BEST PRE AMPS EVER BUILT.

 

[canuckaudiog]

Wait till you find one. That is .. if you find one.
It"s not only the power amp. The pre amp is all the money , in that combo.
ONE OF THE BEST PRE AMPS EVER BUILT.

Yeah I imagine these units are very rare.

However, all it takes is one set. Hopefully there's one sitting out there waiting for me to collect it...

 

[Karl vd Berg]

... Also B2301 was a bit more powerfull than b 2302. Facts of life.
I"d love a pair of b2301L c2301. Any ideas? B2301L has a 1,4kva toroidal in square cann , instead of 1,3 kva 2301 , in the same cann .

"If the sum of the parts are greater than the total, then the total is missing something. If the total is greater than the sum of the parts, then you have a Sansui."

Really impressive...

 

[San-sui]

[QUOTE = " CDP:

Jazz

1.AUX1111 / AU9900
2.C / B2301
3.AU20000 / 607MRX

Pop / rock

1.C / B2301 / AU20000
2.AUX1111
3.AU9900 / 607MRX

Classics

1.AUX1111
2.C / B2301
3.AU607MRX / AU9900
4.AU20000

Here is the list of turntable auditions:

Jazz

1.C / B2301 / AUX1111
2. AU9900 / AU20000
3,607MRX

Pop / rock

1.C / B2301 / AU20000 / AUX1111
2.AU9900 / 607MRX

Classics

1.C / B2301 / AUX1111
2.AU20000 / AU9900
3.AU607MRX

: [/ QUOTE]

Welcome to the forum.

This is an old topic. I will resume it because it seems that I can make a thesis - the B-2102 MOS Vintage power amplifier is one of the best and plays comparable to the AU-X1111 MOS and B-2301. It results from the B-2301 and AU-X1111 MOS combinations given in this thread as a similar sound.
B-2102 MOS is the same power amplifier as in the AU-X1111 MOS terminal.


They are all based on the old schematic of the type I balanced amplifier.

Question for owners of these amplifiers: Am I right?

 

[peterott]

Sorry for asking here too:

No bass/treble control for these monsters anymore?
Philosophy sophy of pure sound? Man, I have treble massacres and bassy catacombsound albums...

 

[San-sui]

I know the B-2102 MOS Vintage. It has a power of only 110 W / 8 Ohm but has very good bass control. It plays nicely on medium and high. The game is very detailed. Medium and high are more delicate than integrated amplifiers of the Alpha type, e.g. A907XR or other Alpha. It has much better bass (more powerful) than the Alpha A907XR

 

[mjs1]

So...

I have a lot of Sansuis hooked up to a switchbox in one room. There is no accounting for personal tastes, we hear and remember what we heard differently. Does our quibbling really matter? The quality of these Sansuis is superb. I have both the AU X1111 MOS Vintage and the B-2102 in the same rack. The preamp for the B-2102 is currently a C-2105. All are Japanese market units connected to step down transformers. For whatever reason, maybe it needs a restoration, I hardly ever listen to the X1111 MV but currently am very much enjoying the B-2102 and, at present, have no inclination to switch (the switch) to a later alpha or tube amp. Anyway, I do love the B-2102 MV and, when I do begin to sell off my amplifiers, I would keep it over the X1111 MV. This is all subjective. The premp may be making the difference. Just my 2 cents.

Cheers.

Marc

 

[San-sui]

I also really like the B-2102 MV amplifier. For me it sounds better than the B-2103 MV and even B-2105MV. I experienced this in direct comparison and in combination with the C-2105.
I think the B-2102 MV is one of the best Sansui products.
I would like to compare B-2102 MV with B-2301 or B-2101L with C-2301 as a preamplifier. I hope I will succeed.

Best regards Sansui fans.

 

[San-sui]

I have been able to listen to the B-2102MV and B-2301L with the C-2301 side by side for a year. For me, in this comparison, both power amplifiers are very good, but I listen to different music on them and use different sound sources. They build the scene differently. C / B-2301 tolerates weaker recordings, "smoothes" them. The pair of C-2301 and B-2102MV do not allow you to listen to a weak source right away. I prefer the delicacy and airiness of sounds and the stage that the B-2102MV builds.
One more thing. The B-2102MV connected directly to a tube CD source (without pre) is a heavenly sound and probably many tube amplifiers from renowned companies would be ashamed here. Unfortunately, I cannot connect directly (without pre) a CD to the B-2301L, as it does not have the volume control that the B-2102MV has. It is a pity, because then I would know which power amplifier is better in such a combination with a tube CD.
All that glows is not gold.
Greetings to Sansui fans.
San-sui

 

[fojica]

Judging strictly from a technical perspective (no direct experience with any of them), it makes sense for the combo C-2105 + B-2102 MOS Vintage to have the upper hand against AU-X1111 MOS Vintage.
B-2102 MV has the same power modules as AU-X1111 MV, but the power supply is a dual-mono design compared to a shared or common power supply in case of AU-X1111 MV. This translates to no cross-talk between L and R channels in case of B-2102 MV, which in turn translates into better separation (or, sound-wise, should I maybe say "improved soundstage" ).
Also in case of B-2102 MV there is no flat-amp or pre-amp stage included in the amp, just volume control. This probably adds again something on the combo side, since *maybe* the pre-amp part from C-2105 does a better job than the pre-amp part included in the integrated AU-X1111 MV.
A more "fair" comparison would be to use both AU-X1111 MV and B-2102 MV driven directly from the C-2105, in other words to "bypass" the pre-amp included in AU-X1111 MV (Power-amp direct option I think). Then the difference would be reduced to the power-amp and power-supply section of both amps.

 

[San-sui]

I also think that the C-2105 with the B-2102MV will sound much better than the AU-X1111MV due to the much better built C-2105 preamplifier. I listened to all the MV series amps, i.e. the B-2102, 2103 and 2105 from the C-2105, in the same setup for the rest of the track. For me then the B-2102MV sounded best with this preamplifier. But that's my subjective feeling. I already had experience with other companies' MOSFET terminals, maybe that's why? Others had different preferences and liked the different sets. They paid attention to other aspects of the sound.
Soon I will be able to compare the performance of the B-2102MV and B-2105MV with the C-2105 again. Now on my system with different sources.
Will I make a final opinion about which B-2102MV or B-2105 sounds better?

 

[fojica]

Will I make a final opinion about which B-2102MV or B-2105 sounds better

Thanks for that - I would be interested to have more details about this comparison, sound-wise.....it's somehow the "old school" topology with cascodes on DD and VAS stage versus the last topology, with Wilson current mirrors and no cascodes.
Regards

 

[bluesky]

AU-X901 'Vintage' - all music sounds wonderful!

 

[San-sui]

Week of comparisons B-2102MV, B-2105MV with pre C-2105 and without pre. Directly to the source, which were two CD players. One with NOS tubes and the other with Ayon CD-1sx with new 6H30 tubes.
In my opinion, the older B-2103MV power amp sounds much better. B-2105MV is too bright for me. It has a weaker, short bass. Probably because the midrange and treble are too exposed, which gives the impression of ubiquitous sound. Immersing yourself in the sound, but it becomes too tiring after a while. Huge sound stage. However, I think that this is an exaggerated scene, not very natural. The sound is being pushed too far forward. The B-2102MV, on the other hand, builds a beautiful scene. Everything is nicely arranged to the sides, up and down, and deeper into the stage. The very well-placed individual instruments do not blend into the wall of sound. Amazing scene clarity of the B-2102MV compared to the B-2105MV. Especially noticeable in the case of the B-2102MV, when the power ends play directly with the source. In my opinion, the B-2102MV also plays very well with the C-2105. Better than with the B-2105MV, because then the sound gains more clarity. I recommend the C / B-2105 set to those who prefer a detailed, bright sound with an underexposed, short bass.

 

[San-sui]

In the test, I had the opportunity to compare the MOSFET tips with the B-2301L (part of my fixed set). Its sound is like a combination of the B-2102MV with the B-2105MV in one box.
However, the reverbs of the treble and midrange are slightly smaller - more subdued than in the B-2105MV. The bass are almost a reflection of the B-2102MV.

 

[San-sui]

Since the sound of the B-2301L is the sound of the B-2102MV + B-2105MV, can it be called neutral? Some people suggest so.
Certainly the way the B-2102MV sounds is the most natural sound for me, especially when it is played without a pre, directly with a not very bright source.

 

[fojica]

Thank you for the details provided - very informative and interesting, appreciated.

Regards

 

[GrisPato]

Week of comparisons B-2102MV, B-2105MV with pre C-2105 and without pre. Directly to the source, which were two CD players. One with NOS tubes and the other with Ayon CD-1sx with new 6H30 tubes.
In my opinion, the older B-2103MV power amp sounds much better. B-2105MV is too bright for me. It has a weaker, short bass. Probably because the midrange and treble are too exposed, which gives the impression of ubiquitous sound. Immersing yourself in the sound, but it becomes too tiring after a while. Huge sound stage. However, I think that this is an exaggerated scene, not very natural. The sound is being pushed too far forward. The B-2102MV, on the other hand, builds a beautiful scene. Everything is nicely arranged to the sides, up and down, and deeper into the stage. The very well-placed individual instruments do not blend into the wall of sound. Amazing scene clarity of the B-2102MV compared to the B-2105MV. Especially noticeable in the case of the B-2102MV, when the power ends play directly with the source. In my opinion, the B-2102MV also plays very well with the C-2105. Better than with the B-2105MV, because then the sound gains more clarity. I recommend the C / B-2105 set to those who prefer a detailed, bright sound with an underexposed, short bass.

Thanks for doing this comparison. Really interesting. Just one question: are both amplifiers restored or at least measured and tested for faulty components ( Capacitors), DC offset bias etc... ?

 

[San-sui]

All Sansui C / B 2105MV, B-2102MV and C / B-2301L amplifiers were serviced and regulated reliably in 2020 (at the well-known Bumpalump service technician in Poland, who writes advice and posts photos on audiokarma.org).
Example:
https://audiokarma.org/forums/index.php?threads/sansui-b-2103-mos-vintage.958810/