예전부터 제가 가지고 있던 시스템의 경질의 소리가 어느순간엔가 너무 귀가 거슬려서 힘들어 하곤 했습니다. 제가 올린글들을 보시면 전부 그것에 대한 고민입니다.



그러다가 다인포커스 360 스피커를 바꾼후 pass lab x250 & x-1 세트로 재구성한후에 연결을 해도 배경의 클리어함과 깨끗함은 개선이 되었는데 여전히 바이올린 하이피치의 경질의 소리는 여전히 존재하고 있었습니다.



어제 다시 Yaqin sd-32a cdp의 진공관을 오리지날 슈광 6n8p로 다시 교체를 했더니 고역의 많이 잠잠해 졌습니다.



참 어이가 없었습니다. 초기에 음질의 변화를 경험해보고자 이베에서 sylvania 6sn7 메탈돔을 $40 정도에 페어로 구압했습니다.



70년대 것으로 추정이 되는데 예전에 뮤피M6i를 들었을 때 뻣어나감과 해상력의 변화가 있었던 것 같습니다 (기억도 잘 안납니다만..) 그러다가 계속 그 원인을 앰프, 선재 등에 의심을 눈초리로 보면서 고민을 했지만 진공관에는 의심을 안했습니다.



그냥 진공관 = 부드러움 이라는 저만의 공식에서 벗어 나지 못해서리..



그러다가 소스기도 한번 변화를 주려고 여러가지로 고민을 하고 있었고, 어제 그렇게 해보니, 썩 맘에 드는 소리는 아니지만, 고역의 경질을 잡았기에 관의 변화를 한번도 생각 중입니다. 중역이 풍성하고 따뜻한 느낌의 대체관이 어느게 있는지 궁금합니다.



퓨즈와 적당한 진공관 한번더 교체해 볼 까 합니다..



오디오 참 재미 있군요, 소리를 만들어 가는 재미..



참고로 어느 사이트 초단관 정리한 것들이 있던데 인기제품은 가격이 후덜덜...



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https://www.tubeworld.com/index_high.htm



6SN7GT SONIC RANKINGBEST SOUNDING 6SN7 AND EQUIVALENTS(6SN7GT/GTA/GTB/WGT, 5692) ARE THESE





ECC33=CV2821 Mullard (can be subbed for a 6SN7GT, max plate volate 300V, superb sound, the best overall, 1950's)



ECC32=CV181 Mullard (can be used in certain applications in place of a 6SN7, max plate voltage 300V, superb sound, 1950's)



6SN7W Sylvania "chrome top" 1940's (metal base and black base)



6SN7GT/GTB/WGT Sylvania "chrome top" 1940's-1950's



CV1988=6SN7GT/GTY Brimar England 1950's and early 1970's (Y=brown base)



6SN7WGT Raytheon ribbed plates 1950's



VT-231=6SN7GT Sylvania, Tungsol, Ken Rad, RCA 1940's



5692 RCA Red Base (early 1950's are best)



5692 CBS-Hytron and Sylvania Brown Base (1957-early 1960's)



6SN7GT/GTB/WGT Tungsol 1950's-1960's



6SN7GT Ken Rad



6SN7GTA GE early 1950's (black plate)



6SN7GT RCA early 1950's



6SN7GTB Sylvania late 1950's-1970's



6SN7GTB RCA late 1950's-1960's



6SN7GTB GE side-getter late 1950's-1975



6SN7WGTA Philips USA made by Sylvania 1970's-1980's



6SN7GTB RCA, Sylvania, GE coin-base 1970's-1980's



6SN7GTB Japan 1970's



6SN7 Russian (harsh highs, thin sounding)



6SN7 Chinese (junk, do not use)









http://republika.pl/mparvi/6SN7.html





VT-231 Tung-Sol, round black plates - Clean, fast, the best in everything, wide bandwidth, great resolution. If you can't find the Music, it's not the tube's fault.



VT-231 RCA, black plates, rich harmonic structure, beautiful timbre and voicing, wide soundstage



6SN7W Sylvania (Mislabeled by me as the 6SN7WGT), black plates - Tied for second and came in first if your system sounds a little laid back, especially some single ended amplifiers - Excellent low level detail resolution, very immediate sounding with a lot of Slam. There are three types of these tubes, two large bottle types, one has a metal ring and one smaller bottle with s smaller plate structure. The smaller one has better low level detail and the larger ones have more slam.



VT-231 Raytheon, black flat plates - like the Tungsol a little sweeter, nice balance of detail and timbre



VT-231 Ken-Rad, flat black plates - Great Bass, drive, sweet midrange, good bandwidth and



VT-231 Sylvania, black plates, wide bandwidth, well balanced, excellent sound stage and air



VT-231 National Union - good drive and great midrange, softer bass and a touch euphonic



6SN7WGT, Tung-Sol. Black Plate, brown base - Sounds similar to the Tung-Sol VT-231, not as clean



6SN7WGT, Tung-Sol. Black Plate, brown base - Very good bandwidth, bass, detail and soundstage,



6SN7GT, CBS/HYTRON Black Plate, quiet and musical, the best of the non-military tubes



6SN7GT, Ken-Rad, black base, bass a little tubby, but clean with great ambiance and air



6SN7GT, Sylvania Green Label, first top getter on the list, non-fatiguing, smooth, with good detail resolution and bandwidth, plus its easy to find and afford.



6SN7GT, RCA Black Plate, still a side getter, rich harmonic structure and maybe a little too sweet.



6SN7GTB, Sylvania Green Label, rich harmonic structure, good midrange, decent soundstage



6SN7GTA, General Electric Black Plate, the great driver tube? Fast, wide bandwidth, smooth sound at the expense of the of low level detail. Along with the Sylvania 6SN7GTB, a great "fourth" tube in Atma-Sphere amps.



6SN7WGT, Sylvania Green Label, Top Getter, "silver top" , very clean with great detail resolution and speed. Bass can be a little tubby and midrange a little congested.



6SN7WGTA, Sylvania black base green label, clean and fast with great drive, good bass



5692, CBS-Hytron, fast, good dynamics, lot of air and great timbre



5692, RCA Red Base, very warm sweet sound, great on voices and jazz



6SN7GTB, RCA, rich midrange, warm sound, likes being combined with other 6SN7 types, likes the Atma-Spheres



6SN7GTB, G.E, Gray plates, work horse, lacks refinement, a good tube