Cayin RU9
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E-Catalog UK editor, Headphone Amplifiers
Olexandr Cherkashchenko, edited 28.01.2026
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Video reviews
This DAC and amp makes everything sound better! Cayin RU9 review
23 September 202520 983 view
Cayin RU9 - KORG NuTubes Portable Tube DAC Amp Review & Comparisons
9 June 202520 823 view
Cayin RU9 - A Portable Audiophile's Dream?
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FiiO BTR17 vs. Cayin RU9: The Battle of the Portable DACs
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Cayin RU9 3 Minute Review | #portableaudio #cayin #dac #hifi
17 June 20257 441 view
UNBOXING & Functions Cayin RU9 Korg Tubes Portable DAC Amp Walk Through
29 May 20257 291 view
R U Kidding Me ? | Cayin RU9 Review
1 August 20257 023 view
ZMF Headphones – Cayin RU9 Unboxing & Ori 3.0 First Look // Portable Tube DAC/Amp Powerhouse
24 July 20254 747 view
Minidisc Weekly Update #23: Cayin RU9 Review, Fourte Ears Mefisto
20 June 20254 049 view
Cayin RU9 Portable DAC/AMP With Korg Nutube 6P1 Tubes Unboxing & Review!
22 May 20253 032 view
Cayin RU9 portable DAC review — dive into music
17 July 20253 016 view
Cayin RU9 UNBOXING! First Impressions: Portable Tube DAC/Amp Magic? #CayinRU9 #ByteAndBeats
13 July 20252 385 view
We recommendCompare using chart →
portable, DAC: ROHM BD34301EKV, 768 kHz, 32 bit, headphone output: 32 – 300 Ohm, mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C, 162 мВт at 32 Ohm, 70 мВт at 300 Ohm, 10 – 50000 Hz, signal/noise 117 dB
portable, DAC: LP5108, 384 kHz, 32 bit, headphone output: 32 – 300 Ohm, mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C, 20 – 20000 Hz, signal/noise 131 dB
portable, DAC: AKM AK4191EQ + AK4499EX, 768 kHz, 32 bit, headphone output: mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C, signal/noise 125 dB
portable, DAC: Asahi Kasei AK4490, 382 kHz, 32 bit, headphone output: 8 – 300 Ohm, Jack 6.35 mm, 500 мВт at 32 Ohm, 20 – 20000 Hz, signal/noise 112 dB
portable, DAC: ESS ES9069Q (2 pcs), 768 kHz, 32 bit, headphone output: mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C, 20 – 50000 Hz, signal/noise 126 dB
portable, DAC: Burr-Brown, 384 kHz, 32 bit, headphone output: mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C, 280 мВт at 32 Ohm, 20 – 45000 Hz
portable, DAC: 384 kHz, 32 bit, headphone output: mini-Jack 3.5 mm, Pentaconn 4.4 mm, input USB-C
stationary, headphone output: mini-Jack 3.5 mm, Jack 6.35 mm, 20 – 20000 Hz, signal/noise 90 dB
portable, DAC: Cirrus Logic CS43131, 384 kHz, 32 bit, headphone output: mini-Jack 3.5 mm, input USB-C, 410 мВт at 32 Ohm, 20 – 20000 Hz, signal/noise 126 dB
stationary, headphone output: 32 – 300 Ohm, Jack 6.35 mm, Pentaconn 4.4 mm, 3400 мВт at 32 Ohm, 367 мВт at 300 Ohm, 20 – 40000 Hz