Uploaded September 2025 | Updated September 2026, 1 week ago
Cayin RU9 is a portable DAC at $499. This is my review.
Buy on Amazon: amzn.to/4mmelEk
Buy on HiFiGo: bit.ly/3VchH1u
Buy on AliExpress: https://s.click.aliexpress.com/e/_oF41r0L
Use the affiliate links above to support the channel and my work.
Support the channel via Patreon (BIG thanks to current patrons!): patreon.com/iiwireviews
Read my written reviews with scores at iiwireviews.com
Follow me on Instagram for... no good reason really: instagram.com/srba_iiwi
00:00 About RU9
03:24 Sound of different modes
08:11 Hyper Mode
09:59 vs Muse HiFi M5 Ultra
12:22 vs EarMen L-amp
16:58 Final thoughts
Test setup
Streamer:
Volumio Rivo+ - shop.volumio.com/product/rivo-plus/?ref=ogvvqcow
Volumio Lineo 5 - shop.volumio.com/product/lineo5/?ref=ogvvqcow
DACs:
Denafrips Venus 15th - denafrips.com/venus
Gustard X26 III DAC - shenzhenaudio.com/products/gustard-x26-iii-dual-es9039spro-digital-to-analog-convertor-dac?ref=b236567rqe&utm_source=affiliate
Preamps:
Acoustic Invader Fulcrum - youtu.be/stsbclVgghQ
Ladder Bach - bit.ly/3FaqSYm
Amps:
Laiv Harmony GaNM - https://www.laiv.audio/harmony-ganm
Topping B200 - amzn.to/3WqCNt4
Speakers:
Mon Acoustics Platiomn VC One: monacoustic.us/product/platimon-vc-one/?v=8cee5050eeb7
CSS Criton 1TD-X – css-audio.com/online-store/CSS-Criton-1TD-X-Kit-Pair-p221163830
KEF LS50 - amzn.to/3W9Os0y
Head-Fi test setup:
Laiv Harmony HP2A: https://www.laiv.audio/product-page/harmony-hp2a
Aune S17 Pro: amzn.to/3u2O6gu
Geshelli Labs Erish 3 Pro: geshelli.com/product/erish-3-pro/?ref=18
Meze 109 Pro: mezeaudio.com/collections/all/products/109-pro?_ef_transaction_id=&oid=4&affid=123
Aune AR7000: amzn.to/3ZcuXG1
Verum 2: verum-audio.com/store
AKG K702: amzn.to/3TSlnUF
#hifi #audiophile #dac #stereo
Cayin RU9 is a portable DAC at $499. This is my review.
Buy on Amazon: amzn.to/4mmelEk
Buy on HiFiGo: bit.ly/3VchH1u
Buy on AliExpress: https://s.click.aliexpress.com/e/_oF41r0L
Use the affiliate links above to support the channel and my work.
Support the channel via Patreon (BIG thanks to current patrons!): patreon.com/iiwireviews
Read my written reviews with scores at iiwireviews.com
Follow me on Instagram for... no good reason really: instagram.com/srba_iiwi
00:00 About RU9
03:24 Sound of different modes
08:11 Hyper Mode
09:59 vs Muse HiFi M5 Ultra
12:22 vs EarMen L-amp
16:58 Final thoughts
Test setup
Streamer:
Volumio Rivo+ - shop.volumio.com/product/rivo-plus/?ref=ogvvqcow
Volumio Lineo 5 - shop.volumio.com/product/lineo5/?ref=ogvvqcow
DACs:
Denafrips Venus 15th - denafrips.com/venus
Gustard X26 III DAC - shenzhenaudio.com/products/gustard-x26-iii-dual-es9039spro-digital-to-analog-convertor-dac?ref=b236567rqe&utm_source=affiliate
Preamps:
Acoustic Invader Fulcrum - youtu.be/stsbclVgghQ
Ladder Bach - bit.ly/3FaqSYm
Amps:
Laiv Harmony GaNM - https://www.laiv.audio/harmony-ganm
Topping B200 - amzn.to/3WqCNt4
Speakers:
Mon Acoustics Platiomn VC One: monacoustic.us/product/platimon-vc-one/?v=8cee5050eeb7
CSS Criton 1TD-X – css-audio.com/online-store/CSS-Criton-1TD-X-Kit-Pair-p221163830
KEF LS50 - amzn.to/3W9Os0y
Head-Fi test setup:
Laiv Harmony HP2A: https://www.laiv.audio/product-page/harmony-hp2a
Aune S17 Pro: amzn.to/3u2O6gu
Geshelli Labs Erish 3 Pro: geshelli.com/product/erish-3-pro/?ref=18
Meze 109 Pro: mezeaudio.com/collections/all/products/109-pro?_ef_transaction_id=&oid=4&affid=123
Aune AR7000: amzn.to/3ZcuXG1
Verum 2: verum-audio.com/store
AKG K702: amzn.to/3TSlnUF
#hifi #audiophile #dac #stereo
