I Knew It! - RCA 12AU7+Sennheiser HD580 Precision+Apos Audio Gremlin - Honest Audiophile Impressions

I had a sneaky idea that the Apos Audio Gremlin would shine with alternate tubes and I was correct. Here are my impressions of the RCA 12AU7 with the Gremlin and Sennheiser HD580 Precision. Apos Audio Gremlin review:    • Apos x Community Gremlin - Best Value Bala...   Purchase: Apos Audio: https://apos.audio/products/apos-x-co... Amazon: https://a.co/d/02NBK2Ga Tube Depot: https://www.tubedepot.com/products/rc... Chapters: 00:00 Introduction 01:17 Swapping Challenge 02:00 Sonic Impressions 04:35 w/Sennheiser HD580 Precison 06:50 I knew it 08:33 Exit I am not a professional sound engineer, producer, musician, or vocalist, etc. I have not done any scientific research, measurements, or in-depth testing of any kind; just my own listening, comparing and internet reading/research. I have limited, real-life experience with recording, mixing and mastering gear. I have been involved since my teenage years with various churches as an amateur sound booth technician. Please take these thoughts, opinions and reasonings as just that, my honest audiophile thoughts, opinions and reasonings. Instagram: https://www.instagram.com/p/B4LG7Kqp_... Twitter:   / talkdbs   @TalkDbs Threads: https://www.threads.net/@thehonestaud... Discord:   / discord   Website: https://www.thehonestaudiophile.com Patreon :   / thehonestaudiophile   YouTube membership:    / @thehonestaudiophile   The Honest Audiophile research/review process:    • Let's Talk - My research and review process   Tierlist:https://docs.google.com/spreadsheets/... Audio Terms/Definitions: https://www.thehonestaudiophile.com/p... Test Tracks: https://www.thehonestaudiophile.com/p... Amazon playlist: https://music.amazon.com/user-playlis... Tidal Playlists: Jazz: https://tidal.com/browse/playlist/ea7... Soundtracks: https://tidal.com/browse/playlist/bd1... Bass: https://tidal.com/browse/playlist/0ba... Mids & Treble: https://tidal.com/browse/playlist/c5b... Tone & Timbre: https://tidal.com/browse/playlist/091... Favorites: https://tidal.com/browse/playlist/4e9... Recommended Gear: Audeze LCD-5: https://www.audeze.com/products/lcd-5 Rosson Audio Design RAD-0: http://www.rossonaudiodesign.com/ Meze Empyrean: https://mezeaudio.com/products/meze-e... Hifiman Ananda: https://hifiman.com/products/detail/290 Sennheiser HD600: https://en-us.sennheiser.com/best-aud... Sennheiser HD660s2: https://www.sennheiser-hearing.com/en... Austrian Audio Hi-X60: https://austrian.audio/headphones/hi-... Audeze LCD 2 Closed: LCD-2 Closed Back (audeze.com) ADV. M5-12D: https://www.adv-sound.com/collections... CTM Da Vinci X: https://cleartunemonitors.com/product... Westone Mach 60: https://westoneaudio.com/product/mach... Tin Hifi T2: https://www.linsoul.com/products/tinh... Sony NW-A105: https://electronics.sony.com/audio/wa... Sony NW-WM-1a: https://electronics.sony.com/audio/wa... Mytek Liberty DAC ii: https://mytek.audio/shop/lbrt-dac-ii-... Mytek Liberty THX HPA: https://mytek.audio/shop/liberty-thx-... HeadAmp GSX-Mini: https://www.headamp.com/products/gs-x... Tor Audio Roger: https://toraudio.com/main.html# Schiit Audio BiFrost 2: https://schiit.com/products/bi-frost-1 Massdrop THX AAA 789: https://drop.com/buy/drop-thx-aaa-789... Massdrop THX AAA One Linear: https://drop.com/buy/drop-thx-aaa-one... If you like the content of this channel and want to see more like this in the future, please consider donating. All funds donated to the channel will be used to purchase headphones and audio gear for the channel. Paypal: https://www.paypal.me/dbsylvia Venmo: @David-Sylvia-6 Patreon :   / thehonestaudiophile   If you would like to contact the channel please send an email to: [email protected] Affiliate links: Drop: https://click.linksynergy.com/fs-bin/... Apos Audio: https://apos.audio?sca_ref=45218.8XN5... HifiGo: https://hifigo.com/?rfsn=5772588.cbfbb66 Linsoul: https://www.linsoul.com?sca_ref=91067...