Sansui 2000x vs. 5000a

[openroad99]

Hi, All... quick question, I need to make a decision on a Sansui today and am not able to do an exhaustive comparison. Figured y'all could give it to me straight...

If you were to choose between a Sansui 5000a and a 2000x -- similar condition, etc. -- which one would you go with and why? I appreciate your thoughts.

Thanks,

~L

 

[holyman772]

Love my 2000x. Never heard anyone report a negative comment about one which is pretty rare in this business. Only downside is sometimes I wish for more horsepower but that's not the unit's fault. Never heard the 5000a.

 

[super98lsc]

The 5000a is a nice unit. Main thing is they had a design flaw in the f-1040 driver boards that can lead to short lifespan for output transistors. If the unit was updated with the later f-6013 driver boards then they are really solid. The 5000a/x is a better amp design than the 2000x and had more power and a larger transformer. I have owned the 5000a and presently own an all original 2000x and an upgraded/restored 5000x which I love.

 

[openroad99]

Thanks for the input, both. I ended up going with the 2000x, since it turned out the 5000a had issues. I had a 2000a before -- and I agree that whole family of Sansuis are quite solid and enjoyable. Cheers, ~L

 

[SoulSmileInc]

Caught the Sansui bug and just recently acquired both of these & comparing. I really couldn't put a finger on the differences in the sound characteristics between the Sansui 2000x and the 5000a especially since the 5000a is in a lot better condition..... so I asked AI on the design, power output, and internal components. Here’s a breakdown of the response... curious if you agree? might also be useful to future folks. I really do think the 2000x has that warm magic that I love. Think I might just have to keep both.

Sound differences you might notice:

1. Power and Dynamics:​

• Sansui 5000a: With its higher power output (55 watts per channel), the 5000a delivers more dynamic headroom, meaning it can drive more demanding speakers with greater authority, especially at higher volumes. It often results in a fuller, punchier sound with more impactful bass and greater clarity in complex musical passages.
• Sansui 2000x: While still warm and full, the 2000x's lower power output (39 watts per channel) might make it sound less dynamic and slightly more compressed at higher volumes compared to the 5000a, especially when driving less efficient or larger speakers.

2. Warmth and Tonality:​

• Sansui 2000x: Known for a classic “Sansui warmth,” this model is often described as having a slightly richer, more intimate sound. Its midrange, in particular, is highly praised, making it ideal for vocals, acoustic music, and jazz. It produces a smoother, more laid-back sound that is less aggressive.
• Sansui 5000a: While also warm, the 5000a is typically a bit brighter and more detailed. It offers more transparency and separation between instruments, which might appeal to listeners who prefer clarity and precision in their music. The 5000a's sound is often described as more open, with a wider soundstage.

3. Bass Response:​

• Sansui 5000a: Due to its higher power output, it tends to produce tighter, more controlled bass, especially at louder volumes. This makes it more suitable for bass-heavy music genres like rock or electronic music.
• Sansui 2000x: While the bass is still warm and present, it might be slightly softer or looser compared to the 5000a, especially when pushing the amp towards its upper limits.

4. Soundstage and Imaging:​

• Sansui 5000a: The 5000a is often noted for its broader and more three-dimensional soundstage, with better imaging and instrument separation. This makes it excellent for more complex recordings like classical or orchestral music.
• Sansui 2000x: The 2000x is a bit more intimate, with a narrower soundstage. This might make it preferable for more focused, vocal-centric music or smaller ensemble performances.

5. Clarity and Detail:​

• Sansui 5000a: The higher power and design of the 5000a give it a slightly crisper, more detailed sound, especially in the treble range. It handles complex tracks with more nuance and less distortion at higher volumes.
• Sansui 2000x: While still detailed, the 2000x leans toward a softer presentation, with less emphasis on high-end sparkle compared to the 5000a.

Summary of Sound Differences:​

• Sansui 2000x: Warmer, more intimate, smoother midrange, great for vocals, acoustic, and jazz. Slightly less dynamic and detailed, with a narrower soundstage.
• Sansui 5000a: More dynamic, powerful, and detailed, with better bass control, wider soundstage, and clarity, especially at higher volumes. Excellent for more complex and bass-heavy music.

Both are highly regarded, but the 2000x is more suited for listeners who prefer warmth and smoothness, while the 5000a appeals to those who seek more power, detail, and a wider sound experience.

Other key differences:

1. Power Output:​

• Sansui 2000x: It has a power output of around 39 watts per channel (into 8 ohms).
• Sansui 5000a: This is a more powerful receiver, offering about 55 watts per channel (into 8 ohms).

2. Design and Build:​

• Sansui 2000x: It is a smaller and more compact receiver. It’s designed for mid-range home audio setups.
• Sansui 5000a: Larger and heavier, built for more demanding audio setups, with better components suited for higher power handling and durability.

3. Tuning and Features:​

• Sansui 2000x: Offers standard AM/FM tuner, basic tone controls, and input/output options. It’s known for its warm sound characteristic typical of vintage Sansui gear.
• Sansui 5000a: Along with the higher power, the 5000a comes with a more refined tuner section and generally better overall performance in terms of frequency response and soundstage.

4. Target Audience:​

• Sansui 2000x: Aimed at mid-range users who want a good balance of quality and affordability.
• Sansui 5000a: Targeted at audiophiles who wanted more power and better audio fidelity.

5. Pricing:​

• Historically, the 5000a was positioned higher in the market due to its more powerful amplifier and enhanced features.

In essence, the 5000a is a more powerful, premium model than the 2000x, offering a higher power output and better sound fidelity, making it suitable for larger rooms or more demanding speakers. The 2000x, while less powerful, is still highly regarded for its warmth and classic Sansui sound, making it a solid choice for smaller setups.

 

[bolero]

So AI basically trawled AK and summarized all that, was it easier than just doing a search here instead? And did you find it comprehensive enough?

I think reading through people's comments might have been more enlightening myself. That all seems pretty generic & not very helpful.

Which AI portal did you use?

 

[SoulSmileInc]

1. I am not sure of the specifics of how Chat GPT works ( I don't even think the engineers really do either) but pretty sure it is a lot more than just AK.
2. Definitely faster (how quickly do people respond to your posts?) & easier than searching/reading through threads that may or may not be useful.
3. Is it comprehensive enough? I don't think it was meant to be. I edited/highlighted in blue what I found useful. Here it is in a table for easier scanability. (AI did this in 5 seconds)I think it would have helped @openroad99 OP & future visitors with the similar question. Also left it open ended for others ( " curious if you agree?") Sounds like you do.

Summary:​

• Sansui 2000x: Warmer, more intimate, smoother midrange, great for vocals and acoustic music. Slightly less dynamic and detailed, with a narrower soundstage.
• Sansui 5000a: More dynamic, powerful, and detailed, with better bass control, wider soundstage, and clarity, especially at higher volumes. Excellent for complex and bass-heavy music.

Aspect	Sansui 5000a	Sansui 2000x
Power and Dynamics	55 watts per channel; delivers more dynamic headroom, fuller, punchier sound, and greater clarity, especially at high volumes.	39 watts per channel; slightly less dynamic, might sound more compressed at higher volumes with demanding speakers.
Warmth and Tonality	Warm but brighter and more detailed; offers more transparency and instrument separation with a wider soundstage.	Known for its rich and intimate “Sansui warmth”; smoother, more laid-back sound, ideal for vocals and acoustic music.
Bass Response	Tighter, more controlled bass, especially at louder volumes; suitable for bass-heavy genres like rock and electronic music.	Warm and present bass, but can be softer or looser, especially when pushing the amp toward its limits.
Soundstage and Imaging	Broad, three-dimensional soundstage with better imaging and separation; great for complex recordings (e.g., classical).	More intimate sound with a narrower soundstage; preferable for vocal-centric or smaller ensemble performances.
Clarity and Detail	Crisper, more detailed sound with emphasis on treble; handles complex tracks with nuance and less distortion.	Detailed, but softer presentation with less emphasis on high-end sparkle compared to the 5000a.

​

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As I go on this audio journey, I remember how hard it was to really understand some of the posts when I was staring out (I didn't live through the golden era of audio & didn't have a lot of equipment exposure.) Definitely agree that there are some insightful nuggets in this community but also have read many posts that were not helpful. I think a brief summary coupled with actual comments fr0m experience can both be useful depending on where you are but there is a tendency for everything to make sense in hindsight.

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*Side note:
I went on AI Audio query flurry after getting the idea with this post & found it incredible useful to refine what gear I wanted to search for next. You have to know the right AI prompts but you should definitely try it. Some examples:

1. It made a list of 100 all vintage amps that only met a specific criteria (certain type of wiring design, dual mono, mosfet, between a certain wpc) and added info that would help me further narrow (approximate price, sound signature criteria, brand, original retail price, etc). I used it to find the perfect amp for my next search/upgrade. (This took about 10 minutes vs ....). I also did a similar list for the same criteria for modern hi-fi gear for $$$ aspirations.
2. I did a similar query to find speakers that are similar to my current favorite & found some good leads on what to check out if I come across them. (5min vs... )
3. I used it to get the detailed specs on a part that I am trying to replace and potential replacements that have similar specs. (10min vs...)
4. I used it to for crossover wiring & component compatibility for a project that I am currently working on. ( could see how this would be really useful if you had a service manual, limited experience, & misc parts).

Overall, I think AI & AK forums are just a tool like anything else (gun, pencil, paintbrush). Depends on what you are using it for and what you do with it. AI is definitely better when you are brainstorming or just starting out on a project vs asking it things you already know.

But nothing is better than actual human experience ( for example I think @super98lsc comment above was the most useful for me and something an AI would never be able to provide...)

 

[CrSens]

If AI was any competent in this instance, it would not oversell a quite minor power difference in practical terms (39 vs 55 W , about 1.5 dB louder) to such huge advantage in dynamic and power, and base 90% of sound difference on that alone.

 

[kwayde]

Don't care much for AI as it currently is. But over time it may get better, unlike Google search which seems to get worse.

 

[bolero]

Google is worse now that it's AI driven IMO

It would be nice if AI could list all the sources it drew the data from. Maybe it does?

Agree there's not likely much between 39 vs 55w, speaker sensitivity probably plays a larger role in it

 

[thanhky1985]

1 very important thing that almost no one mentioned here. 2000x and 5000 5000a 5000x almost do not have 2sc631 transistors with gold plated flat pins. Only 2000a has this type of transistor, 1000x, 2000x only has 2sc871 round pins with gold plated. 2sc631 type with gold plated flat pins gives midrange and treble sound more like tube tube 2sc631 gives more bass sound like ksc1845 but does not have the sound quality like tube tube. 2000a has this type of transistor which is very rare if found then the price is also higher. It is used in tone circuit and signal input part of driver circuit. It holds the sound quality factor of amp, but until now it has been more than 50 years. These transistors are also getting old, and if you're lucky you can only keep 2 pairs (4 transistors), 2 for the tone circuit output and 2 for the driver circuit input. If you replace them all with ksc1845, the sound will be more bassy and muddy, no longer having the sound quality of a tube.