FiiO K11 R2R vs SMSL SU-1

95 facts in comparison

Based on 470 Reddit opinions. SMSL SU-1 leads by 7 points.

470 opinions
SMSL SU-1 leads by 7pts
FiiO K11 R2R
88%
A-
Based on
483 Redditors

FiiO K11 R2R

~$175.99
267 opinions

tldr; Reddit overwhelmingly recommends the FiiO K11 R2R. With 89% positive sentiment across 485 mentions, this is a clear community favorite.

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VS
Reddit's Pick
SMSL SU-1
95%
A+
Based on
390 Redditors
Winner

SMSL SU-1

~$84.99
203 opinions

tldr; Compact DAC. USB source, clean output. Basic but effective.

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Sound QualityFeatures & ConnectivityAmp PerformanceNoise & InterferenceBuild Quality
🎡SOU
⭐FEA
⚑AMP
πŸ”‡NOI
πŸ”§BUI
62
Points
100
Points

Score by Category

Sound Quality
77%98%
Features & Connectivity
50%100%
Amp Performance
56%0%
Noise & Interference
29%100%
Build Quality
0%100%

Why is SMSL SU-1 better than FiiO K11 R2R?

  • Higher Reddit score (95% vs 88%)
  • Better sound quality (98% vs 77%)
  • Better features (100% vs 50%)
  • Better noise (100% vs 29%)
  • Compact
  • Budget
  • Clean output
Based on 873 Reddit opinions
Slight Edge

Reddit prefers the SMSL SU-1

Winning by 7 points (95% vs 88%)

Better sound quality
Better features
Better noise
High confidence (873 mentions)

πŸ’¬Reddit Sentiment

Based on 873 Reddit mentions

Overall Rating

K11 R2R
8.8/10
483 mentions
SMSL SU-1
9.5/10
390 mentions
SOUND QUALITY
K11 R2R7.7/10
SMSL SU-19.8/10
VALUE
K11 R2R9.7/10
SMSL SU-110.0/10
AMP SECTION
K11 R2R5.6/10
SMSL SU-10.0/10
FEATURES
K11 R2R5.0/10
SMSL SU-110.0/10
NOISE
K11 R2R2.9/10
SMSL SU-110.0/10
BUILD QUALITY
K11 R2R0.0/10
SMSL SU-110.0/10
βš”οΈ

Head to Head

Head to Head

K11 R2R: 1|SMSL SU-1: 5
Sound QualitySMSL SU-1
K11 R2R77%
SMSL SU-198%
ValueSMSL SU-1
K11 R2R97%
SMSL SU-1100%
Amp SectionK11 R2R
K11 R2R56%
SMSL SU-10%
FeaturesSMSL SU-1
K11 R2R50%
SMSL SU-1100%
NoiseSMSL SU-1
K11 R2R29%
SMSL SU-1100%
Build QualitySMSL SU-1
K11 R2R0%
SMSL SU-1100%
K11 R2R88%
SMSL SU-195%
SMSL SU-1 wins by 7 points

Key Specs

SpecFiiO K11 R2RSMSL SU-1
DAC
FiiO-developed R2R DAC (24-bit resistor array)
β€”
USB Decoding
PCM up to 384 kHz at 32-bit, DSD up to DSD256
β€”
Output Power Balanced
1300 mW per channel (32 ohms)
β€”
Output Power Single Ended
460 mW per channel (32 ohms)
β€”
Inputs
USB-C, Optical In, Coaxial In
USB Type-C, Optical, Coaxial

Key Highlights

FiiO K11 R2RWinner
Solid community reputation
Frequently recommended
SMSL SU-1
πŸ“ Compact
πŸ’° Budget
πŸ”Š Clean output
πŸ”§ Needs amp

Topic Battles

K11 R2R: 1|Tied: 0|SMSL SU-1: 4
🎡Sound Quality
SMSL SU-1 wins
K11 R2R
77%
SMSL SU-1
98%
⭐Features & Connectivity
SMSL SU-1 wins
K11 R2R
50%
SMSL SU-1
100%
⚑Amp Performance
K11 R2R wins
K11 R2R
56%
SMSL SU-1
0%
πŸ”‡Noise & Interference
SMSL SU-1 wins
K11 R2R
29%
SMSL SU-1
100%
πŸ”§Build Quality
SMSL SU-1 wins
K11 R2R
0%
SMSL SU-1
100%

Based on Reddit sentiment across 5 categories

πŸ“ˆWhere They Rank

πŸ’¬What Redditors Actually Say

What Redditors Say

Best praise vs top criticism for SMSL SU-1

Best Praise
+14 pts
β€œThrift store DVD player with a good DAC like SMSL SU-1 will sound like a Β£1000 CD player. For Β£100.”
r/BudgetAudiophile
View
Top Criticism
+1 pts
β€œWith a good $1000 DAC, sure, there will be imorovements. With SMSL SU-1, no I don't think so.”
r/BudgetAudiophile
View
3 more quotes available below

What Redditors Say

Best praise vs top criticism for FiiO K11 R2R

Best Praise
+9 pts
β€œOk. I live in Sweden and had my gear in a room where the radiatorΒ failed. It was around 8C / 45F for a few weeks before I fixed it. My Dac/Amp from Fiio (K11 R2R) worked as normal, no issues at all. ”
r/headphones
View
Top Criticism
+2 pts
β€œNot sure why you are being downvoted, because you are saying facts. FIIO K11 R2R is soulless, bland, boring box.”
r/headphones
View
3 more quotes available below

πŸ“ˆHistorical Price Data

FiiO K11 R2R
SMSL SU-1
$90$120$150$180Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Apr '26May '26Low: $175.99Low: $84.99
FiiO K11 R2R
All-time low: $142.99(2025-05)
SMSL SU-1
All-time low: $67.99(2023-06)

Which is Better?

SMSL SU-1 Wins
95%
SU-1
vs
88%
R2R

SMSL SU-1 leads by 7 points based on 873 Reddit opinions.

Why SMSL SU-1Winner
  • Better Features (100% vs 50%)
Why K11 R2R
  • Still a solid choice depending on your priorities

❀️The Love/Hate Breakdown

Sentiment Breakdown

51%Positive
Positive
51%
Neutral
48%
Negative
1%
Based on 390 Reddit opinions

Sentiment Breakdown

49%Positive
Positive
49%
Neutral
45%
Negative
6%
Based on 483 Reddit opinions

Frequently Asked Questions

Which is better, SMSL SU-1 or FiiO K11 R2R?
Based on 873 Reddit comments, SMSL SU-1 is the preferred choice with 95% positive sentiment vs FiiO K11 R2R's 88%. SMSL SU-1 leads by 7 percentage points.
Should I buy SMSL SU-1 or FiiO K11 R2R?
If you want the safer choice based on community sentiment, SMSL SU-1 has stronger approval ratings (95% vs 88%). However, FiiO K11 R2R may still be better depending on your specific needs, budget, or use case.
What do Redditors love about SMSL SU-1?
Reddit users highlight: Compact. Budget. Clean output. With 390 mentions and 95% approval, it's a well-regarded choice in the community.
What do Redditors say about FiiO K11 R2R?
FiiO K11 R2R has 483 mentions on Reddit with 88% positive sentiment. It's frequently discussed as a solid option.
How many Reddit reviews were analyzed?
This comparison analyzed 873 Reddit comments: 390 about SMSL SU-1 and 483 about FiiO K11 R2R. Data was sourced from DACs community discussions.
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Well-discussed products with many mentions tend to have more reliable scores than niche items with fewer data points.
Why trust Reddit over professional reviews?
Reddit users bought products with their own money and have no incentive to mislead. You're seeing hundreds of real opinions across different use cases, not just one reviewer's take. This crowdsourced approach surfaces both common praise and recurring complaints.

470 Reddit opinions analyzed Β· Last updated 7/26/2026