Very informative post, thank you!I have a Line Magnetic 508 as well, so considering the MELZ 1578. There appear to be a bunch of these online now with prices all over the map. How do I know which "1578" tubes to buy? Is there something specific I'm looking for to know I am getting the "right" 1578 tubes?
Shootout of Nos 6sn7 tubes
I will have shootout between TS BGRP, RCA vt231, KR vt231, Syl vt231, Raytheon vt 231 and "Bad boy" next weekend.
If I get MELZ 6N8S 6SN7 Metal Base next week, then I will also include it in shootout
RCA5691, Psavne Acme 300B, Psavne Acme 805 are also being used in Line Magnetic 508 amplifier.
Speaker will be Lansche 4.1 with plasma tweeter.
Digital source will be Dave and HMS fed by ripped CD stored in ssd drive of Cocktail audio x30.
I will play
Eva Cassidy's 'Autumn Leaves"
"Trinity Sessionn " by Cowboy Junkies
For classical orchestra, "Trittico" directed by Fennel.
"Still harry after all these years" will be for fusion jazz.
Any more suggestion gentlemen and ladies.
Thomas
If I get MELZ 6N8S 6SN7 Metal Base next week, then I will also include it in shootout
RCA5691, Psavne Acme 300B, Psavne Acme 805 are also being used in Line Magnetic 508 amplifier.
Speaker will be Lansche 4.1 with plasma tweeter.
Digital source will be Dave and HMS fed by ripped CD stored in ssd drive of Cocktail audio x30.
I will play
Eva Cassidy's 'Autumn Leaves"
"Trinity Sessionn " by Cowboy Junkies
For classical orchestra, "Trittico" directed by Fennel.
"Still harry after all these years" will be for fusion jazz.
Any more suggestion gentlemen and ladies.
Thomas
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- 246 posts total
If you want to experience 1578 tube, then I recommend this dealer who sent the tube very fast. https://www.ebay.com/itm/Matched-pair-Extremely-rare-1578-6N8S-audiophile-6H8S-6SN7-Metal-base/273874731266 It give some hum and noise at the start but with burning in for 20 hours, those noise had been almost gone. |
@ testpilot Two pairs of 1578 sounds clean without noise or hum and one pair give some high frequency noise before full 20 minutes warmup. Thus I am happy with my three pairs of 1578 made in 1980 and 1983. I agree with you that TS bgrp is overhyped. One can get pair of Sylvania vt231 which sound close to TS bgrp around 150$. But 1578 is not for everyone. Its balance is bass heavy and closed in at treble compared with Syl vt231. |
- 246 posts total